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09-24-2002, 09:35 PM
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302 piston dim. compared to 327 piston
Does anyone know what the difference in dims. between a stock 302 piston compared to a 327 piston. Iv heard that a 302 piston is TALLER due to the shoeter stroke of a 283 crankshaft used in a 302. Wrist pin to top of piston. Looking for the difference. They both use a 5.7 rod but the stroke is .250 difference. Thanks Dave
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09-25-2002, 03:43 AM
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The pin height is different, the 302 has a pin location close or the same as a 283, for the stroke reasons you mention.
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09-25-2002, 08:55 AM
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the compression height (distance from pin center to top of piston) is about 1.68" for 327 pistons, and 1.805" for 302 pistons. 302 pistons will go on a 327 crank with 5.565" 400 rods (this is what you're doing right?). the block might need to be milled 0.010 or even 0.020 cuz the 5.565 rods will want a 1.815 comp/height piston with 3.25" stroke.
9.025-(3.25/2+0.02+5.565)=1.815 anybody?
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