Forms and Registration

We are collecting names of Canadian and USA drivers interested in testing the LS Engine Package. The list will be submitted to WISSOTA for approval. Please note it will be WISSOTA's decision as to which drivers will be allowed to test the package. Drivers will not be eligible for National or Regional/Canadian WISSOTA Points - Track Points Only.

Proposed Engine Package to be Tested (Subject to Change)
GM 5.3 Litre LS, Year 2000 and Up
All engines must be inspected, sealed, and WISSOTA tagged at an approved engine shop prior to installation.

1. Factory GM iron-production engine block ONLY (Maximum overbore +.060).
2. Factory GM style replacement pistons ONLY (1.5mm/1.5mm/3.0mm rings).
3. Factory GM crankshafts must remain 3.622” stroke with no modifications allowed.
4. Factory GM connecting rods only, must remain 6.098” length.
5. Balancing of rotating assembly is permitted.
6. 5.3 GM 862 or 706 casting head ONLY. Must remain with stock 1.89 intake valve, 1.55 exhaust valve, stock length, stock stem 0.313”. No rectangular port heads allowed.
7. No porting, polishing or angle milling allowed.
8. Factory rocker arms ONLY. Rocker arm trunnions can be upgraded.
9. Up to 562 cam shaft lift allowed.
10. ONLY single beehive valve springs permitted. Must use factory GM valve spring retainers and locks.
11. Ignition control MSD 6014CT box with stock GM truck coils.
12. Rev limiter to a maximum of 6200 RPM.
13. Edelbrock RPM intake part #71187. Performance World 650021 LS1 dual plane carbureted intake manifold. No porting or polishing allowed.
14. Holley 4412 2-barrel 500 CFM carburetor.
15. Holley 80 red electric fuel pump.
16. Holley safety fuel pressure switch 12-810.
17. Pump gas only.