Thread: 429 block, heads, crank, etc.

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I've been told that FoMoCo had to drop the static compression ratio down into the high 7's to prevent the motor from detonating with these heads on pump gas. As I understand it, there was no provision for squish/quench. And Jerry, you're right about the 8 degree retard on the cam. I have advised rodders for years to swap over to the 1968/1969 429 timing set to advance the cam on any Lima motor 1972 and later. I remember one fellow several years ago who complained of no power in his 460 pickup truck. I suggested the early 429 timing set and he wrote back that the truck would now burn the tires off it.
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