1. GM PART NUMBER 88958602 ONLY.

2. THESE ENGINES ARE SEALED AT THE INTAKE MANIFOLD, CYLINDER HEAD, FRONT COVER, AND OIL PAN WITH SPECIAL TWIST OFF BOLT HEADS ORIGINALLY FROM GM. CRATE USA SEALS ALLOWED, NO RM BOLTS, FOR ANY OTHER SEALING SYSTEM CONTACT CRATE RACIN USA FOR APPROVAL. CRATE ENGINES MUST NOT BE ALTERED, MODIFIED OR CHANGED FROM FACTORY SPECS.

3. THE SEALED ENGINES MUST REMAIN INTACT AND NOT BE TAMPERED WITH; ANY SEALS THAT HAVE BEEN REMOVED OR TAMPERED WITH WILL MAKE THE ENGINE ILLEGAL AND NOT ELIGIBLE FOR COMPETITION.

4. 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.

5. NO VACUUM PUMPS.

6. ALL CRATE ENGINES MUST REMAIN STOCK AS THEY CAME SEALED FROM THE FACTORY. CRATE ENGINES MUST NOT BE ALTERED, MODIFIED OR CHANGED FROM FACTORY SPECS.

7. ENGINE’S GM SERIAL NUMBER AND WHEN APPLICABLE CRATE USA BUILD CERTIFICATION NUMBER, MUST BE CLEARLY VISIBLE TO TECHNICAL INSPECTORS.

8. ANY VIOLATION OF THE ENGINE RULES AND/OR FACTORY SPECS OUTSIDE THE SEALING BOLTS OF THE ENGINE WILL RESULT IN THE DRIVER BEING DISQUALIFIED FROM THAT EVENT.

9. CARBURETOR MUST BE UNALTERED 4412. MAY REMOVE CHOKE BUTTERFLY AND ROD. CHOKE HORN MUST BE UNALTERED.

10. ENGINE MUST BE NATURALLY ASPIRATED.

11. MAY USE ONE CARBURETOR SPACER (1 INCH-ONE PIECE WITH .040 TOLERANCE MAXIMUM) AND TWO STANDARD PAPER GASKETS (MAXIMUM 0.070 INCH THICK), ONE GASKET BETWEEN INTAKE TO SPACER AND ONE GASKET BETWEEN SPACER TO CARBURETOR

12. ANY ELECTRONIC DISTRIBUTOR-TYPE IGNITION SYSTEM. NO CRANK TRIGGER, DISTRIBUTORLESS MULTI-COIL, OR MAGNETO IGNITION SYSTEM.

13. ALL CARS MUST HAVE STARTER IN WORKING ORDER.

14. CAST OR ALUMINUM PERMITTED.

15. NO ELECTRIC WATER PUMP.

16. GASOLINE OR RACING GAS ONLY – No Methanol

17. MECHANICAL FUEL PUMP ONLY, CAM DRIVEN OR BELT DRIVEN, NO ELECTRIC FUEL PUMPS.

18.The transmission must be bolted to the engine. All cars must have forward and working reverse gears and be able to shift to forward or reverse with engine running. BERT-type transmissions will be permitted. Drive shaft must be painted white, and marked with car number.(Must be steel or Aluminum, NO Carbon fiber.)

19.The minimum weight of car with driver AT ALL TIMES including after the race is 2,400 lbs. No burn off permitted.

20.Only steel body, one piece non-adjustable oil shocks will be permitted. Adjustable shocks, including cockpit adjusters will not be permitted.

21.Hoosier G-60 tire only. No physical alteration of any kind will be permitted. (grooving, sipping, ect.)

22.All electronic and/or computerized wheel spin and/or acceleration retardation traction control devices will not be permitted. Controlled timing devices attached to or controlling accelerator or rotation of wheel will not be permitted.

23.Body rules will conform to current UMP/ IMCA/ USMTS standards.