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#1
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Roger, trying to settle a disagreement amongst friends...
What cylinder heads are on your car? 3919840's? Or 3964291's? I say the 840 castings are more correct for 67'-68' cars, and the 291's are more correct for a 69'. TIA
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi 1969 Malibu COPO L72/M20/12 bolt 3.31 posi 1968 Malibu LQ9/4L80E/12 bolt 3.73 posi |
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#2
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Quote:
RogerD |
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#3
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Thanks Roger, looks like I stand corrected. Now my next question... is it true that the 840's had small exhaust valves? (1.725" vs. 1.88's)
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi 1969 Malibu COPO L72/M20/12 bolt 3.31 posi 1968 Malibu LQ9/4L80E/12 bolt 3.73 posi |
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