Limited Late Model
2012 LIMITED LATE MODEL RULES
RaceCeiver Required, No other radios or communication equipment or mirrors allowed at any time.
ENGINE (A) 2350 LBS
A. Raised runner heads add 100 LBS
B. 362 Cubic Inch Maximum
BLOCK:
A. OEM Cast iron or aftermarket cast iron.
B. Any cylinder bore.
C. Aftermarket steel splayed main caps permitted.
D. Main cap studs and straps permitted.
E. Deburring block and plugging deck to strengthen block permitted.
F. Plug or vent and screen oil drain holes in lifter valley permitted.
G. May surface block.
H. Lifter bore must be OEM diameter for engine. Chevrolet .840, Ford .875, Chrysler .901.
I. All engines 362 Cubic Inch Maximum.
CRANK:
A. Any steel crank with the exception of (titanium or other Exotic materials.)
B. 362 Cubic Inch Maximum.
RODS:
A. Steel rods only.
B. No titanium or aluminum rods.
PISTONS:
A. Any flat top pistons and pins.
B. No dome pistons.
CAM:
A. Solid lift cam only.
B. No roller, mushroom or radius cams.
LIFTERS:
A. Solid lifters only.
B. No roller, mushroom or radius lifters.
C. Lifter retaining tray permitted.
D. Lifter must be OEM diameter for engine. Chevrolet .840, Ford .875, Chrysler .901
HEADS:
A. Chevrolet any 23 degree cast iron heads with the exception of the Pro Action/Pro Top Line/Racing Head Service (RHS) heads. The Pro Action/Pro Top Line/Racing Head Service (RHS) heads may be used you must add 100 lbs. additional weight. Spark plug location must be the same as the Bow Tie and Dart heads.
B. Ford SVO Sportsman cast iron heads M-6049-E351 and M-6049-N352, GT-40-P, World Products Windsor Sr. heads. Ford Pro Action/Pro Top Line/Racing Head Service (RHS) heads may be used you must add 100 lbs. additional weight.
C. Chrysler cast iron W-2.
D. All heads must remain AS-CAST.
E. No cc limit.
F. Valve angle and spacing must remain original production specs. For heads being used.
G. Steel valves only. (No titanium valves)
H. Valve size maximum for (A) engine, Intake – 2.055, Exhaust – 1.600.
I. Valve stem diameter 11/32 minimum for all engines.
J. Under cut stems permitted, any type guides.
K. Any valve springs, retainers and keepers.
L. Guide plates, screw in studs and stud girdles permitted.
M. Roller rocker arms, stud or shaft mount permitted.
N. No porting or polishing all heads must remain AS-CAST.
O. No Shot Peen porting heads.
P. No port matching intake or exhaust runners.
Q. Racing valve job permitted Machine cuts only.
R. No blending valve job to casting.
S. No deburring intake or exhaust runners.
T. If raised runner heads you have to weigh 2450
INTAKE:
A. Any single four-barrel intake permitted.
B. May port and polish.
C. Any size carburetor spacer permitted.
CARBURETOR:
A. One four-barrel carburetor only of any manufacture.
B. No turbo-chargers, blowers or fuel injections.
C. All engines must be naturally aspirated.
OIL SYSTEM:
A. Wet sump systems, internal or external pumps permitted.
B. Dry Sump Oil Systems permitted must add an additional 50 lbs. in front of rear motor plate.
WATER PUMP:
A. No electric water pump.
FUEL PUMP:
A. No electric fuel pump.
DISTRIBUTOR:
A. Any ignition with the exception of magnetos (No magnetos.)
B. There is a $400.00 claim rule on all ignition boxes.
C. (See Claim Rule Section for more info.)
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ENGINE SETBACK:
A. Engine setback will be 6” inches from center of top ball joint to the most forward spark plug. 1 inch tolerance on engine setback.
B. Engines may be crossed from one manufacturer’s line to another Example: Chevrolet in a Ford, Pontiac, etc.
FRAME:
A. All frames must be of steel construction.
B. Square or rectangular frame must have a minimum of 2” by 2” material, .083-wall thickness.
C. If round tube frame, tubing must have a minimum of 1-3/4” outside diameter, .083 wall thickness.
WHEEL BASE:
A. Minimum wheelbase will be 103” inches.
ROLL CAGE:
A. All cars must have a suitable steel roll cage protecting the driver’s compartment, including headrest.
B. Side roll bars are mandatory, and must extend into the door panels. A minimum of three (3) bars must be used on the left side.
C. Each bar must be at least 1- ½” in diameter, with a minimum material thickness of .083”.
D. Roll cages must be welded to frame.
BODY:
A. Same as Super Late Model specs.
B. No mirrors, radios or communication equipment allowed in car at any time.
SAFETY:
A. All cars must have 3” inch seat belts with shoulder harness and must be attached to roll cage.
B. We strongly recommend that all cars have an approved fire extinguisher system, securely mounted, within easy reach of the driver.
C. A 5 lb. Halon System is recommended.
D. All drivers must wear a complete fire suit.
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NUMBER:
A. Number must be at least 18” inches high and on both sides and top of car.
B. All cars must have a number.
EXHAUST/MUFFLERS:
A. Collector type headers required.
BRAKES:
A. Four-wheel disc brakes permitted.
B. No carbon fiber brake parts permitted.
FUEL CELL / FUEL:
A. An approved fuel cell (32 gallon maximum) must be securely mounted in the trunk area of the car, inside a .20 gauge metal box supported by a minimum of two 2” inch by 1/ 8” inch steel straps.
B. All fuel cells must be completely visible from rear of car.
C. Fuel cell must not be mounted lower than bottom of quick-change rear end.
D. Gas only – no alcohol – no nitrous oxide, nitro methane or other nitrate additives.
E. No Propylene oxide.
TRANSMISSION:
A. Must have at least one forward and one reverse gear in working order.
B. No straight drives or in and out boxes.
WHEELS:
A. Any brand or type of wheel allowed must be mounted with lug nuts.
B. No knock-off or center lock wheels.
C. Maximum wheel width – 14” inches.
TIRES
- Hoosier 1600, 55 Must punch a minimum of 52 after the race on tracks durometer.
- Or American Racers 56
- Front Tires Are OPEN
D. Tires must have all numbers and name on the tire, No chemical altering, No grinding off of numbers or names, any tire that has been altered will be illegal.
WEIGHT:
A. Engine (A) 2350 lbs. with 8” Spoiler
B. Engine (B) 2450 lbs. with raised runner heads with 8” Spoiler
C. Track reserves the right to adjust weights in interest of competition should it deem necessary.
D. Attached weight must be securely bolted to frame with ½” or larger bolts and painted white or silver with car number clearly painted on them.
E. All cars must have specified weight posted on top right side of roof.
LIMITED LATE MODEL PROTEST FEES
$400.00 One Head (No valves will be pulled)
$300.00 Oil Pan
$50.00 Engine Setback (1 inch tolerance)
NOTE: The 8 rule – We will allow .008 thousandths on the bore, stroke and valve size.
Any item not listed in protest fees is considered a visual protest item and must be protested before race and not after.
Track reserves the right to add Crate cars to Limited class under Crate rule with exception of protest fees which will follow Limited rules.
Track reserves the right to delete, change, or amend rules in interest of competition.
