C9OE Heads dilema
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Tuned
Joined: Jan 2002
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C9OE Heads dilema
I just ordered heads for a 351W engine and I got C9OE castings accidentally (I wanted D0OE). However, as I understand it, they are better heads. My problem is compression. Does anyone know what the compression ratio would be for the D0OE vs the C9OE heads? Pistons are speed-pro flat top with valve reliefs. I need to know if they are going to break the bank with octane booster.
Junior User
Joined: Jan 2002
Posts: 79
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From: Chelsea United States
C9OE Heads dilema
You should end up right at 10.5-to-1 to 10.7-to-1 compression, depending on which block you are using, gasket thickness, has the block been milled, have the heads been milled, etc. Chamber sizes on the C9 heads are virtually identical to the DOOE's......
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