Concerned about compression ratio
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Joined: Oct 2003
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From: Georgia
Concerned about compression ratio
I need some advice on a 460 engine I found in a salvage yard. It was in a 1970 Continental. (Yes, D0ve heads, short deck block, 10.5:1 compression ratio)
My question; Can I run 10.5:1 compression on todays premium fuel? I'm worried about detonation. I've been advised to lower the compression to 9.5 by some folks, and others say its ok at 10.5.
I plan on installing a longer duration cam than stock, and generally understand that this will affect the dynamic compression ratio, which will provide a bit of a buffer for detonation.
I've called several cam tech people and havent gotten a satisfying answer.
Anyone......please advise.
Oh....the 460 is gonna be stuffed in my 1977 F-150 4X4, C-6, 3.50 gearing.
Will install headers, aluminum manifold. Thanks.
My question; Can I run 10.5:1 compression on todays premium fuel? I'm worried about detonation. I've been advised to lower the compression to 9.5 by some folks, and others say its ok at 10.5.
I plan on installing a longer duration cam than stock, and generally understand that this will affect the dynamic compression ratio, which will provide a bit of a buffer for detonation.
I've called several cam tech people and havent gotten a satisfying answer.
Anyone......please advise.
Oh....the 460 is gonna be stuffed in my 1977 F-150 4X4, C-6, 3.50 gearing.
Will install headers, aluminum manifold. Thanks.
