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#5
04-10-2008, 11:07 PM
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Re: LT1 Valve adjustments
-70's "LT-1" Solid-Lifter Cam
What about the later early-70's "LT-1" solid-lifter cam? In the case of the LT-1, it's OK to adjust the intakes at TDC (its closing ramp ends about 10 degrees BTDC, so it's off the ramp at TDC), but the exhaust is still on its ramp at TDC, so the exhausts should be set at 90 degrees BTDC using the indexing procedure. Both intake and exhaust recommended clearances should be factored down by the 1.37/1.50 rocker ratio correction here as well, from the factory spec of 0.024-0.030-inch (hot) to a (cold) setting of 0.021-inch for the intakes and 0.026-inch for the exhausts. CRG Link http://www.camaros.org/302valves.shtml
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