Crate Late Models (Kentucky 50)

Maximum Spoiler Height is 8 inches!

* All headers must be pointed away from ground, horizontal and preferably outside of car.
* Tri-Y headers are not allowed

* GM Performance Parts 602 crate engine (Part #88958602) and the GM Performance Parts 604 crate engine (Part # 88958604) are the only two engines allowed. All engines are sealed from the factory and such seals may not be removed, touched, modified or broken.

* All Engines and all components there of must be in original form as delivered from the factory. Any changes to the factory sealed delivered configuration and assembly will result in disqualification. No upgrades are allowed to any engine.

NO CHANGES ARE ALLOWED TO THE ENGINE - INTAKE MANIFOLD, HEADS, VALVE COVERS, FRONT COVER, OIL PAN, HARMONIC BALANCER OR ANY OTHER PART / OR PARTS ON / OR IN ENGINE

* All cars must have fuel cells - 32 (thirty-two) gallons maximum capacity meeting SFI specifications.
* Fuel cell must be completely enclosed in 18-gauge steel container. No aluminum allowed.
* Gasoline only - Pump gas is recommended

1.25 Weight
a) All cars using the GM Performance Parts #602 engine must weigh 2250lbs. at all times.
b) All cars using the GM Performance Parts #604 engine must weigh 2400lbs. at all times.
c) If you are using canister shocks, you must add 100 lbs to weight rule

1.21 Carburetors
a) Any 750 CFM Carburetor or smaller. Must have 1 11/16th base plate maximum. No exceptions. (measured with go/no-go gauge)
b) 1" (one inch) Spacer maximum on Crate Engines. 1" is measured top to bottom of spacer including any gaskets that are between nany parts of spacer on 2 piece spacers.
c) Please take time to check your plate. It is your responsibility to make sure its right. It is the Series responsibility to make sure its legal.
d) Spacer must not be more than 1" at any point. Not just around the edges
e) No spacer may protrude into intake.
f) One gasket allowed on top from carburetor to spacer. One gasket allowed from bottom of carb to intake.
g) Legal gaskets are standard gaskets only. (Completely up to the discretion of Official)
h) Two throttle springs strongly recommended!
i) Billet base plates may be used but cannot be taller than standard Holley base plate. (.570 maximum)

1.21 Oil Pump
a) Wet sump only.
b) No external oil pumps period. Even if considered "wet":
c) Remote oil filter and lines permitted. (One) remote oil filter.
d) Oil cooler allowed. (One)

1.21 Distributor
a) No magnetos.
b) Electronic ignition allowed.
c) MSD type box allowed.
Series retains the right to change MSD boxes with any car at any time without notice.

1.21 No Electronic Water Pumps

1.21 No Vacuum Pumps

1.14 Drive Shaft
a) Two 1 1/2" (one and a half inch) 18-gauge steel drive shaft loops or sling is mandatory.
b) Steel, aluminum or carbon fiber drive shafts are permitted. Drivers are encouraged to perform systematic checks on their drive train to help reduce maintenance-related driveshaft problems.

Tires - Hoosier LM 40 or WRS 55 ONLY

Body rules will need to follow the UMP Late Model body rule- except changes stated above.

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