441 Late Model Rules

2013 441 Late Model Chassis and Body Rules

 

 

Traction Control Devices

A.) All electronic and/or computerized wheel spin and/or ignition retardation and/or ac­celeration limiting and/or traction control devices of any type will not be permitted.

B.) Adjustable ping control devices, dial a chip controls, timing controls and/ or automated throttle controls will not be permitted.

C.) Adjustable restrictor plates will not be permitted.

D.) Remote control components of any-type will not be permitted.

E.) Radios and/or devices for transmitting voice and/or data will not be permitted.

F.) Data acquisition systems and/or electronic or digital timing devices will not be permitted.

 

Chassis/Frame

A.) The wheel base minimum will be 103”-inches with a maximum wheel base of 105”-inches.

B.) All frames must be fabricated from magnetic steel with a minimum of 2”-inches x 2”-inches or approved rectangular magnetic steel with a minimum material thickness of .083”-inches.

C.) A minimum of 1.75” Outside Diameter magnetic steel tubing, 4130 Chrome Moly or DOM with a minimum material thickness of .083”-inches, will be permitted for frames that are fabricated from round tubing.

D.) Rear bumpers that are stubbed may only extend a maximum of 8”-inches beyond the frame. Any stubbed rear bumper that extends further than the maximum of 8”-inches must be formed and directed 8”-inches toward the front of the car.

E.) External rub rails will not be permitted.

F.) All cars must be equipped with a tow hook and/or strap for the purpose of towing.

G.) All battery supports and/or mounts must be secure and braced in two (2) horizon­tal positions and one (1) vertical position.

 

Weight / Ballast

A.) The total weight of the car with the driver will be;

1.) A minimum of 2,400 lbs as weighed on the track scales for a car with a 441 engine block.

2.) A minimum of 2,250 lbs as weighed on the track scales for a car with a crate 604 motor.

1 lb. per lap burn off on heats, last chance, and feature races, green flag laps ONLY.

B.) Weights up to 50 lbs must be positively fastened by 2 ½-inch, minimum grade 5 bolts with a minimum of two (2) weight clamps. Threaded rods will not be permitted. All weights must be painted white and clearly labeled with the car number on it.

C.) Any weight(s) must be securely attached to the frame below the body decking.

D.) Any car that loses any weight/ballast during an event may be subject to a penalty.

E.) Weights attached to the rear bumper and/or outside the frame will not be permitted.

F.) Pellet-type and/or liquid-type weight/ballast will not be permitted.

G.) Driver operated weight adjustment, ‘weight jacking’ devices will not be permitted.

 

Body

(Refer to diagrams 1 - 4 attached)

 

Overall Appearance

A.) The car must be neat in appearance and must display the car number o the front nose and the rear fuel cell. The minimum height for the number will be 6”-inches.

B.) The car must have legible numbers on each side and on the roof a minimum of 18”-inches high,

C.) The driver’s last name must be placed in legible letters on both doors or the rocker panels.

 

General Body

A.)The nosepiece must match the body style of the make and manufacturer of the car and be the same as the make and manufacturer of the motor (GM, Ford, Mopar).

B.) All cars must have a minimum half-inch (1/2”) and a maximum of one (1) -inch radius at the top of fenders, doors and quarter panels. Sharp edge(s) will not be permitted.

C.) The floor boards and firewall must completely cover the driver’s area with no openings.

D.) Fins and/or lips of any-type will not be permitted anywhere along the entire length of the car.

E.) The body line must be a smooth even line from front to rear.

F.) Wedge shape cars and/or body styles will not be permitted.

G.) “Belly pans” or any type of enclosure on the bottom of the car will not be permit­ted. A skid plate to protect the oil pan is permitted. A maximum 1/8” skid plate will be permitted.

H.) Wings and/or tunnels and/or any type of air deflection device will not be permitted underneath and/or chassis of the car

I.) Panels of any type under the rear deck running from the front to the rear of the car will not be permitted.

J.) Bodies that are non-approved will be assessed a weight penalty. The minimum weight penalty will be as follows; 25 lbs per inch of the infraction.

K.) Any style air cleaner scoop used must be positioned in front of/or around the air cleaner and must not exceed 1”-inch in height above any part of

the air cleaner. Any type of flange and/or air deflection device and/or fin that is de­signed to direct airflow will not be permitted.

L.) Cockpit adjustable components with the exception of brake bias adjusters will not be permitted. Adjusters of any-type, including but not limited to adjustable shocks, hydraulic or pneumatic weight jacks, trackers, ignition boxes or similar adjustable components will not be permitted inside the cockpit of the car or within reach of the seated driver.

 

Nosepiece

A.) Only approved nosepieces may be used.

1.) Dominator 2012 Late Model Nose

2.) MD3 – Performance Bodies

3.) ARP

4.) Five-Star MD3 type

B.) All nosepieces must be made of molded type material.

C.) Two piece noses must be positively fastened together in the center. Spacers added to gain width will not be permitted.

D.) The nosepiece must be mounted in a manner that does not alter its original shape.

E.) The nose shall remain flat above the nose lip/wicker bill. Alterations and/

or additions may not be made to this area other than cooling holes will be permitted.

F.) The nosepiece can extend a maximum of fifty-two inches (52”) from the

center of the front hub to the farthest point extending forward.

G.) The nosepiece must display a headlight decal package.

 

Roof

A.) The roof length from front-to-back must be a minimum of 44”-inches with a maxi­mum of 54” inches.

B.) The roof width from side-to-side must be a minimum of 48”-inches to a maximum of 52”-inches.

C.) The roof must be stock appearing and be mounted level to the body.

D.) The minimum height of the roof will be 45”-inches with a maximum height of 48”-inches. The roof will have a maximum rake of 3”-inches.

E.) The roof must be mounted parallel to the body and near the center of the car as viewed from the front of the car. The entire rear edge of the roof, when measured from the bottom of the roof to the top of the interior decking, shall maintain the same height measurement across the entire width of the roof.

F.) A maximum 1-1/2” roll, turned downward will be permitted along the front edge of the roof. A maximum 1”-inch roll, turned downward, will be permitted along the rear edge of the roof. These modifications will be permitted to improve the strength of the roof. Any other modifications to the roof will not be permitted.

G.) Flat and/or odd shaped roofs will not be permitted. Bellied and hollowed roofs will not be permitted. Any sun/antiglare shields may not exceed a 4” drop from the top roof line, and must hinge for easy exiting.

H.) A maximum of two (2) roof edge bead rolls of a maximum height of ½”inch the length of the roof will be permitted.

I.) The roof posts and spoiler support(s) may not overlap.

J.) Only single plated roofs will be permitted.

H.) The maximum thickness of the roof at any point will be ½”-inch.

I.) The roll cage and associated frame members above the interior panels (decking) must remain open. Enclosures will not be permitted.

 

Roof Supports and Window Side Panels

A.) All roof side panels must extend to the edge of the body.

B.) The roof side panel window size must be a minimum of 10”-inches x 15”-inches and must match drawing number -4- side view. A maximum crown of two (2) inches will be permitted, measured from the center of a common tangent point on either side of the crown.

C.) The side window area may be covered with clear Lexan and/or equivalent type material, be cut out and/or represented by a decal. Both roof support openings must be covered and/or both must be left open. The left and right side openings must be the same size with a tolerance of one (1) inch.

D.) The left and right side window panels must match.

E.) A maximum bow of two ( 2”)-inches outward on the window side panels as viewed from behind will be permit­ted. See drawing -4-.

F.) The front roof supports up to 2”-inches in width must extend forward to the rear of the hood. Lips and/or fins will not be permitted.

 

Front Fenders, Fender Flares and Hood

A.) The hood and the front fenders must be level and flat from the left to the right side of the car.

B.) The outside edges of the hood and/or the fender must remain inside the overall bodyline.

C.) The front fender may be a maximum of 37”-inches in height, measured vertically from the ground to the top of the fender behind the front tires.

D.) The front fender flares must be made of plastic and must not alter the original shape of the nose piece.

E.) The front fender flares must not extend beyond the front tires more than 1”-inch per side to a maximum width, edge-to-edge, of 90”-inches in width with the wheels pointed straight.

F.) The front fender flares can have a maximum increase in height of 2 inches.

G.) The front fender flares must have collapsible supports.

 

Doors

A.) The door-to-door measurement must not exceed 76”-inches in width at the top of the doors.

B.) The door-to-door measurement must not exceed 82”-inches overall width when measured at the bottom of the doors in the center of the car.

C.) The doors must not exceed 37”-inches in height when measured from the ground to the top of the door.

D.) The door sides may not break inward from the top 76”-inches and bottom 82”-inch measurements. Hollow and/or bellied doors will not be permitted.

E.) The minimum ground clearance will be 3”-inches.

 

Quarter Panels

A.) The maximum distance from the center of the rear hub to the top quarter of the panel is fifty three (53”)-inches. See drawing #2 1.7A.

B.) The quarter panels must not exceed 76”-inches in width at any point as measured at the top of the panels.

C.) The rear deck must taper in a symmetrical manner from the center of the rear hub to the rear spoiler with a maximum width of 72”-inches. See drawing #5.

D.) The maximum width for the quarter panels measured from outside-tooutside measured 19”-inches from the ground and/or at the bottom of the quarter panel will be 86”-inches.

E.) Any breaks and/or bends formed in the sides of the quarter panel that move the panel toward the center of the car will not be permitted. Hollow and/or bellied panels will not be permitted.

F.) The maximum distance from the center of the rear hub to the rear trailing edge of the quarter panel will be 48”-inches. See drawing #2 1.7A.

G.) The maximum height from the ground to the top of the rear deck at the top of the rear quarter panel is 38”-inches.

H.) A minimum of 2”-inches of tire clearance between the tire and the body will be required.

I.) Skirting that extends behind the rear quarter panel will not be permitted.

 

Spoilers and Spoiler Braces/Supports

A.) Only aluminum and/or Lexan and/or Lexan-type rear spoilers will be permitted.

B.) The maximum overall height of the rear spoiler will be 8”-inches. The maximum width of the rear spoiler, including braces and/or supports is 72”-inches.

C.) The rear spoiler must begin at the deck and extend 8”-inches from that point. Sus­pending the spoiler to create a wing-type device will not be permitted.

D.) The rear spoiler must begin at the rear most point of the quarter panels.

E.) Only three spoiler braces/supports will be permitted. The front edge of the spoiler brace/support must be in line with the spoiler.

F.) The outside spoiler supports must not be mounted any-wider than the top of the quarter panel(s) and must be centered on the rear deck.

G.) In the event that aluminum angle is used to brace the upper edge of the spoiler, the angle must not add to the height and/or length of the spoiler in any way.

 

Interior

A.) The interior of the cockpit must be a minimum of 11”-inches below the top of the roof and/or roll cage, measured perpendicular to the ground from

the bottom of the roof to the cockpit deck. Roof rolls are not part of the measurement.

B.) The side window opening(s) must be 15”-inches from the top of the door to the bottom of the roof.

C.) Support bars that block the right window from the driver exiting the cockpit will not be permitted.

D.) A single rock guard (Lexan screen) tapered back from the steering wheel to the height of 1”-inch in line with the driver’s chest providing the 11”-inch minimum clear­ance is met at any point from the roll cage to the body and/ or rock guard.

F.) If the interior deck drops the drop must begin at the rear of the engine plate with a maximum of 4”-inches and must not drop below 4”-inches at the rear of the hood. The start of the dropped interior must remain closed as a

part of the fire wall. The entire width must be closed off with sheet metal.

G.) The interior must gradually taper up to the quarter panel height and must be level for a minimum of 20”inches from the rear spoiler forward..

 

Driver Compartment

A.) A full metal firewall fabricated from magnetic steel and/or aluminum must encom­pass the driver’s compartment from front-to-rear, on both sides and floor boards.

B.) The driver’s seat must be a high back aluminum seat, designed specifically for racing, located on the left side of the car and mounted per the manufacturer’s instruc­tions securely to the frame.

C.) The seat design should be one from a current manufacturer and/or recommended to include the full containment design. Installation of the full containment seat should follow the manufacturer’s instructions.

D.) All cars must be equipped with a quick-release type steering wheel.

E.) The driver compartment must have a starting switch and/or button within reach of the driver.

F.) A clearly labeled electrical on/off ‘kill’ switch within reach of the driver is recom­mended.

G.) Mirrors of any-type will not be permitted.

H.) Radios and/or electronic and/or data communication devices will not be permitted.

I.) Any edge and/or sheet metal end in and around the driver compartment must be protected with trim and/or beading and rounded. Sharp and protruding edges will not be permitted.

I.) A substantial rock guard with a minimum of three (3) additional roll bars must be mounted in front of the driver. The rock guard must be made from wire screen. Wind­shield screens must be a minimum of .090-inches and must be securely fastened.

J.) A fully charged fire extinguisher meeting SFI 167.1 specifications

with an activation push and/or pull knob within reach of the driver is recommended

 

Suspension

A.) All cars must be equipped with an operating four wheel disc brake system.

 

Shock Absorbers

A.) All shock absorbers must be constructed of magnetic steel and/or aluminum.

B.) Remote reservoirs will be permitted.

 

Suspension Components/Springs

A.) Coil springs must be magnetic steel.

B.) Leaf springs may be composite material or magnetic steel.

 

Roll Cage

A.) All cars must have a roll cage fabricated from a minimum of 1-1/2” outside diam­eter with .065”-inch thick seamless magnetic steel tubing.

B.) The side roll bars and/or door bars must extend into the door panels.

C.) A minimum of three (3) bars must be utilized on the left side of the car in the door area.

D.) Any of the bars that are utilized for the top portion of the roll cage, including, but not limited to the front and rear hoops, the top hoop and the uprights, must extend a minimum of 1”-inch above the driver’s helmet.

 

Wheels

A.) Only steel or aluminum wheels will be permitted for competition.

B.) The wheels must be mounted to the hubs utilizing lug nuts. “Knock off” and/or single type wheel mounting systems will not be permitted.

C.) The maximum wheel width that will be permitted is 14”-inches.

D.) Wheel spacers will be permitted

Tires

Hoosier D21, Crate 21, spec 1350 any location must punch at least 40 at any time. D55,1600 (max.15.5 section width), right rear only. Must punch at least 50 at any time.

No altering and/or covering of tire sidewall marking in any manner.

Engine Placement

Engine location 6.5 inches from center of upper control arm mount to #1 spark plug on full jig cars or 25 ½ inches from mid plate to center of upper control arm mount measured on left side only. ½ inch tolerance. 50 lb. penalty per full inch that engine is set back too far, weight must be mounted in front of engine block. Example: engine set back 8 inches or 27 inches must add 50 lb in front of engine. 9 inches or 28 inches, 100 lb in front of engines. MAX 2 inch.

 

 

 

2013- 441-LM FORD ENGINE RULES

 

HEADS

 

1.Sportsman M-6049-N351 or M6049-N352 heads allowed. NO aftermarket heads. N351 head maximum intake runner volume 195CC, Exhaust runners 80CC maximum. N352 head maximum intake runner volume 188CC, and Maximum exhaust runner volume 77CC. Combustion chamber volume either head, 62CC. NO Tolerance. Maximum valve size 2.02” intake, & 1.65” exhaust. May use Brodix NLMS “SPEC” or Dart Pro 1 aluminum heads. No angle milling Ford Brodix Spec Head. Hollow stem valves OK any head.

2.Cylinder head must be unported. NO porting, polishing, gasket matching, or coating on inside of head runners. No Epoxing in runners. No short side radiuses.

Must be able to see and feel the defined raised lip of original bowl in the cylinder head, in all areas of the bowl, AND All bowl work must Remain concentric with the valve guide, and NO machine or grinding work more than .650” below the 45 degree valve seat. Any Work done more than .650” below valve seat will be deemed port work NOT part of the valve job. Any completely smooth blends, of the bowl on the short side (even though you can see where the cutter stops) will be considered short siding, again must be able to see and feel the defined raised lip of the original bowl.

3.Stud mount rockers ONLY, stud must go through center of rocker arm. No shaft mount rockers.

May use hollow stem valves.

 

BLOCK

 

1.M6010-D351, M351, or N351 are acceptable blocks. N351 block will cost the racer the least amount money on machine work, and would be preferred.

2. Dart Block Part #31384195, and 31385195 allowed. World Products Block part # 087150 and 087152 allowed.

3. No lightening of engine blocks allowed.

 

CRANKSHAFT

 

1.Any cast or forged steel (No Billets) crankshaft must have a stock stroke of 3.50”, and weigh a minimum of 54lb. No knife edging or winging of cranks. Ford part #M-6303-G351 is a good place to start, The M-6303-G351 is to light.

2. Ford may run after market crankshaft, but must meet all of above criteria.

 

OIL PUMP

 

1.Wet sump oil system, or may use an external single stage belt driven oil pump. Oil must be pumped from, and returned to oil pan.

 

CONNECTING RODS

 

1.Any forged steel sportsman rod, 6” maximum length, 7/16 rod bolts permitted. Connecting rods not to exceed $750 cost.

“I” Beam Rods Allowed:

                        1. Crower Sportsman                       6”

                        2. Eagle                                                      6”

                        3. K-1                                                                                   6”

                        4. Manley Sportmaster                   6”

                        5. Pro-Comp                                                                   6”

                        6. Scat                                                                                 6”

“H” Beam Rods Allowed:

                        1. Eagle                                                     6”

                        2. Callies-Compstar                            6”

                        3. K-1                                                                                   6”

                        4. Manley                                                                         6”

                        5. Pro-Comp                                                                   6”

 

2.NO Billet rods, or Carilla rods.

3.May polish beams, No profiling or cnc machining in center of beams.

4.Manufacturer’s name and Rod size must remain on rod.

 

PISTONS

 

1.Any flat top piston.

 

ENGINE BALANCING

 

1.Engine Balancing permitted

 

CAMSHAFT

 

1.Any flat tappet cam

2.Stock diameter lifters ONLY ..875”, OEM size to make of engine, NO ceramic foot lifters allowed, all lifters must have a magnetic base.

3.NO roller cams or lifters

 

TIMING GEARS

 

1.Timing chain and gears ONLY

2.NO gear drives, or belt drives

 

 

INTAKE MANIFOLD

 

1.Any cast iron or aluminum intake.

2.No porting, polishing, squaring/gasket matching of ports.

3.May run 1” spacer

4.Turtle OK not altered

5.Total adapter not to exceed 1” total. Anything mounted between carburetor and intake is considered spacer, and cannot exceed 1” total.

6.Directional spacers OK.

7.All intakes must be from a recognized name brand intake manufacturer, ex Edelbrock, Brodix, Holley, Weiand, etc. MUST have manufacturers name and part number intact and unaltered. NO import manifolds allowed

 

CARBURETOR

 

1.One dual line, single pump 3310 Holley, with Vacuum sec.

2.May remove choke butterfly.

3.May drill idle holes in butterflies. There should be No half, or flat throttle shafts in the primary side of the carburetor’s base plate.

4.The primary throttle shaft, with a 172 butterfly should be a minimum of .1868” thick

5.The secondary round shaft, with a 172 butterfly should be a minimum of .1828” thick.

6.The secondary half or flat shaft with a 172 butterfly, should be a minimum of .1228 thick

7.Billett base plate allowed must meet factory Holley specs. On throttle bores, and above throttle shaft specs.

Note: Checked with go-no-go gauges

8.May install secondary jet metering block, Billet metering block allowed.

9.May NOT remove choke horn.

10.NO porting or polishing.

11.Single pump ONLY. No rear nozzles.

12.Four corner idle OK.

13.Carbs checked with Go-No-Go gauges.

14.stock inside diameter boosters 3310 Holley. Down leg Boosters OK, must remain stock Holley specs.

15. Any butterfly, MUST meet 172 spec. Any screw.

 

 

FUEL PUMP AND FUEL CELL

 

1.Stock mount fuel pumps ONLY.

2.No electric or belt driven fuel pumps

3.Steel case on fuel cell recommended

 

WATER PUMP

 

1.Stock mount ONLY.

2.Electric fans OK.

 

IGNITION

 

1.Any battery operated.

2.No crank trigger ignition, & No Magnetos

3.NO Electronic Traction Control device!! Rev. limiter, retard device, etc. cannot be in reach of driver.

4. MSD Boxes may not be mounted in driver compartment. The trigger wiring Harness (green and purple wires) must go straight from box thru firewall to distributor.

 

RADIATOR

 

1.Must be close to stock location, mounted in front the motor.

 

STARTER

 

1.Must have operating starter.

                       

 

2013- 441-L/M Chevy Engine Rules

 

 

1. Engine in car must match manufacturer of body used. Example: Ford Thunderbird must run Ford Engine: Camaro must use chevy Engine: Dodge Intrepid must run Mopar Engine.

2. Chevrolet 350 cubic inch + .060.

3. Cast iron blocks ONLY. Factory (ie. GM, Ford, Mopar) production, or performance cast iron blocks. Chevy May use World Products MoTown Block part# 084010, this block is more economical and is ONLY after market block for Chevy engine. NO lightening of any blocks allowed.

4. Must have stock oiling systems. No dry sump systems. Ford Engines allowed to run single stage belt driven pump.

5. May have straps on stock main caps. After market steel caps, straight bolt or splayed caps OK.

6. No oversize valve lifter holes.

7. Oil coolers - OK

8. Accu- sump OK - Pressurized accu- sumps OK

 

CRANKSHAFT

1. Crank must be factory stock stroke.

2. Stock stroke for engine used. 3.48" Chevy

3. Balancing OK

4. Cross Drilling OK

5. No knife edge or winged cranks.

6. Any aftermarket forged steel or cast production type crank. Stock stroke for engine used.

No Billets. Mini­mum rod pin diameter 2.00 inch.

7. Crank weight 48 lbs. minimum Chevy engine.

 

CONNECTING RODS

 

1.Any forged steel Sportsman connecting rod with the following dimensions: 7/16 rod bolt, 5.7"   Connecting rods not to exceed $750 cost.

“I” Beam Rods Allowed:

                        1. Crower Sportsman 5.7              SP93205B--8                                           5.7

                        2. Eagle                                                      SIR5700BBLW                5.7

                        3. K-1                                                                                   CF5700ALLB 8               5.7

                        4. Manley Sportmaster                   14101-8                             5.7

                        5. Pro-Comp                                                                   PC 4112                             5.7

                        6. Scat                                                                                 2-ICR5700-7/16           5.7

“H” Beam Rods Allowed:

                        1. Eagle                                                     CRS5700BLW                 5.7

                        2. Callies-Compstar                            CSA5700DS2A2AH     5.7

                        3. K-1                                                                                   CH5700-ALL BB            5.7

                        4. Manley                                                                         14050-8                             5.7

                        5. Pro-Comp                                                                   PC4131                              5.7

2. May polish beams.

3. May use after market rod bolts.

4. No Titanium Rods - No Carillo Rods.

5. No profiling of rods, no cnc machining of center of beam, no removing of manufactures name or rod size.

 

PISTONS

  1. 1. Any flat top piston.

 

ENGINE BALANCING

 

  1. 1. Engine balancing

 

HARMONIC BALANCER

 

1. Any Harmonic Balancer

2. Balancer may be pinned.

 

HEADS

 

1.Chevy OEM or Performance cast iron heads, NLMS Brodix “SPEC”, or Dart Pro 1 (195 cc runner) only Aluminum head permitted.

2.Milling heads accepted.

3.Multi angle valve job permitted

4.Maximum intake valve size 2.02”, Maximum Exhaust valve size 1.6”. 11/32 valve stem, cut in flow area only.

5.NO titanium valves permitted.   Hollow stem valves OK

6.May use any valve spring, valve retainer, oversize valve stem, lash cap, any steel pushrod, screw in studs,    guide plates, stud girdle, any stud mounted roller rocker. Stud must go thru center of rockers.

7.NO shaft mounted rocker systems

8.NO porting, polishing, gasket matching, or coating on inside of head runners. No Epoxing in runners. No short side radiuses.

Must be able to see and feel the defined raised lip of original bowl in the cylinder head, in all areas of the bowl, AND All bowl work must Remain concentric with the valve guide, and NO machine or grinding work more than .650” below the 45 degree valve seat. Any Work done more than .650” below valve seat will be deemed port work NOT part of the valve job. Any completely smooth blends of the bowl on the short side (even though you can see where the cutter stops) will be considered short siding, again must be able to see and feel the defined raised lip of the original bowl.

9.NO altered or ground off casting numbers.

10.Chevy Vortec head casting #’s permitted. 12554290-10125320-12552520-13555690-10239906- & 062.

Total intake runner volume not to exceed 173CC. Total runner volume Exhaust runner not to exceed 64CC.

11.Chevy Phase II cast iron bowtie head (new style), part number 1013492, casting number 140110034 allowed.

Maximum runner volume on intake not to exceed 184CC.

12.New Chevy Vortec/Bowtie Head part #25534351 Ok. Maximum runner volume 186CC. Maximum Exhaust runner volume 69CC.

13. Dart Iron eagle 180 head permitted (part #’s 10110010, 10110010F, 10120010).   182cc Maximum intake runner volume, 77cc maximum exhaust volume. 2.02” Intake valve max, and 1.6” exhaust valve max. NO Machined cuts more than .700” below valve seat. NO Iron Eagle 215, or Platinum 200, 215 heads allowed. Dart Iron Eagle 200 OK.

 

INTAKE MANIFOLD

 

1.Any cast iron or aluminum intake.

2.No porting, polishing, squaring/gasket matching of ports.

3.May run 1” spacer

4.Turtle OK not altered

5.Total adapter not to exceed 1” total. Anything mounted between carburetor and intake is considered spacer, and cannot exceed 1” total.

6.Directional spacers OK.

7.All intakes must be from a recognized name brand intake manufacturer, ex Edelbrock, Brodix, Holley, Weiand, etc. MUST have manufacturers name and part number intact and unaltered. NO import manifolds allowed.

 

CAMSHAFT

 

1.Any flat tappet cam, NO roller cams or lifters allowed.

2.Stock diameter lifters ONLY .842”, OEM size to make of engine, NO ceramic foot lifters allowed, all lifters must have a magnetic base.

 

TIMING GEARS

 

1.Timing chain and gears ONLY. NO gear drives or belt drives.

 

CARBURETOR

 

1.One dual line, single pump 3310 Holley, with Vacuum sec.

2.May remove choke butterfly.

3.May drill idle holes in butterflies. There should be No half, or flat throttle shafts in the primary side of the carburetor’s base plate.

4.The primary throttle shaft, with a 172 butterfly should be a minimum of .1868” thick

5.The secondary round shaft, with a 172 butterfly should be a minimum of .1828” thick.

6.The secondary half or flat shaft with a 172 butterfly, should be a minimum of .1228 thick

7.Billet base plate allowed must meet factory Holley specs. On throttle bores, and above throttle shaft specs.

Note: Checked with go-no-go gauges

8.May install secondary jet metering block, Billet metering block allowed.

9.May NOT remove choke horn.

10.NO porting or polishing.

11.Single pump ONLY. No rear nozzles.

12.Four corner idle OK.

13.Stock inside diameter boosters 3310 Holley. Down leg Boosters OK, must remain stock Holley specs.

14.Any butterfly, must meet 172 specs. Any screw.

 

 

FUEL PUMP AND FUEL CELL

 

1.Stock mount fuel pumps ONLY. NO electric or belt driven fuel pumps.

2.Steel case on fuel cell recommended

 

WATER PUMP

 

1.Stock mount ONLY.

2.Electric fans OK.

IGNITION

 

1.Any battery operated.

2.No crank trigger ignition, & No Magnetos

3.NO Electronic Traction Control device!! Rev. limiters, retard device, etc. CANNOT be in reach of driver.

4. MSD Boxes may not be mounted in driver compartment. The trigger wiring Harness (green and purple wires) must go straight from box thru firewall and follow along engine side of firewall, and be easily accessible for inspection.  

 

RADIATOR

 

1.Must be close to stock location, mounted in front the motor.

 

STARTER

 

1.Must have operating starter.