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Old 11-26-2004, 11:22 PM   #1
Blue4x4
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swaping a 307 to a ?

I have a 81 chevy silverado with a 307. any suggetions on upgrading to a 327 or 350? What is needed for these swaps?
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Old 11-27-2004, 12:05 AM   #2
jimfulco
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Basically, just a 327 or a 350. Be sure the heads on the new engine have the proper bolt holes on the ends where the accessory brackets mount. If you have a stick shift, be sure there's a hole for the clutch linkage pivot ball near the rear of the left side of the block. This is all assuming it's a Chevy 307, not an Olds, neither of which came from the factory in an '81 truck.
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