GM Performance 12480002 - GM Performance LT1/LT4 Hot Cam Kit
GM Performance #809-12480002SB-Chevy LT1/LT4 Hot Cam Kit |
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GM Performance 12480002 - GM Performance LT1/LT4 Hot Cam Kit Details
This kit includes the following items:
Camshaft Specs: The duration at lash point in degrees (intake/exhaust) is 279/287; duration at .050" tappet lift (intake/exhaust) is 218/228; and maximum lift with 1.6 rocker ratio (intake/exhaust) is 525/525. Valve lash is zero/zero and lobe centerline is 112 degrees.
Technical Notes: The LT4 camshaft 809-24502586 was designed to be used in a number of different engines. Therefore, the following change may need to be made to allow for correct assembly of the engine: For LT1 and L98 engines 1995 and before, the dowel pin in the end of the camshaft must be pushed in so extension from end of cam is .30+/-.01", the same as the production part. For 1996 LT1 and LT4 engines, the dowel pin is in the correct position, extending .620" from the end of the camshaft. This camshaft has a fuel pump lobe.
Note: This kit does not include roller tappets.
The-off highway GM camshaft kit has the major valve train components to convert production LT1 engine for showroom stock racing, or hop up your small block Chevy V8 that was originally equipped with a roller tappet camshaft. The 1:6 roller rockers, light weight valve spring caps, special designed valve spring and hot GM camshaft offers a significant gain in horsepower at a reasonable price.
