BODY: All body rules will be like UMP Dirt Late model rules but will have a 3-inch minimum and maximum. Measurements. Rear of car may be open, note extend over 76 inches, which is maximum width. Rear bumper may not extend past ½ width of rear tire, or may have 90 degree turn and stay within rear quarter. Front push bar is not to exceed width of chassis, may brace. Rear spoiler, 8-inch maximum. (No tolerance) and 45 inch maximum height from ground. See Diagram. There will be 1 inch tolerance on all body parts. You may run Ford, GM, Dodge, etc. All cars will run GM crate motor.

CHASSIS: Wheel base of 101 inch minimum.

SUSPENSION: Any

REAR END: Any

BRAKES: Any

WHEELS: Any

TIRES: Hoosier D-55 Mandatory on the R/R, Goodyear X400's will be permitted on the L/F, R/F and L/R positions until local inventory has run out.

DRIVESHAFT: Any

TRANSMISSION: Any, must have working reverse. Must have safety loop.

FLYWHEEL: Any clutch, any flywheel.

ENGINE LOCATION: (Chevy) 6 inch from #1 plug to top ball joint. 1 inch tolerance.

WEIGHT: 2,400 pounds after race.
Competition Director reserves the right to outlaw any exotic equipment.

The Official supplier of the GM Limited Late Model Crate Motor, Part# 88958603 for Sunset Speedway Park is Weston Pontiac Buick & GMC. 22555 S.E. Stark Street, Gresham, Oregon. 97030 Contact Ross Ames or Dave Stephens at (503) 665-2653 or (800) 231-5186, final racer cost is $ 4,359.03.

This is a factory sealed crate engine package, complete from high rise dual plane intake manifold, stamped steel valve covers with racing style breathers, and 8 quart dual kick-out circle track racing oil pan. The 350 engine is a great value with the 1053 forged steel crankshaft,aluminum heads heads with 1.94"/1.50" valves, hydraulic roller lifters, and HEI distributor and normal rotation iron water pump included.

The base engine is a ZZ4 350CI/355HP, with the following parts:
P/N 10105123 4 bolt iron block
P/N 14088533 1053 steel crankshaft
P/N 10108688 PM rod
P/N 10159436 High Silicon aluminum piston
P/N 10185071 Camshaft with hydraulic roller lifters
P/N 12556463 aluminum head
P/N 10185063 High rise dual plane intake manifold
P/N 1104067 HEI distributor
P/N 25534354 8 quart circle track oil pan (with oil filter)
P/N 25534359 Valve cover kit with breather tube
P/N 25534355 Valve cover breather kit
P/N 25534352 Special rocker arm nut "kool nut design"

Technical Notes:
These engines are sealed at the intake manifold, cylinder head, front cover, and oil pan with special twist off bolt heads. The 355 HP @ 5500 RPM was derived from a superflow dyno using a 4 barrel 650 cfm Holley carburetor P/N 80541-1, 32" long by 1 5/8" to a 1 3/4" stepped header with a 3" collector, and 92 octane unleaded gasoline. Oil pan clears most GM rear steer chassis with stock engine location. Oil pan is 7" deep at sump.
Performance Spark Plug Wire Set # 12361056