Thread: engine swap
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Old 01-04-2007, 06:12 PM   #4 (permalink)
Eightupman
Senior Member
 
Join Date: Nov 2006
Location: Fayetteville, NC
Posts: 252
Yes a 455 will fit, but I recommend finding the stock notched valve covers if you want a little extra clearance near the AC unit.

I did a 260 to a 307 swap. Took the 307 from a Buick Riviera and got SCHOOLED on the rebuild. If memory serves I hade to change over the oil filter mount, the exhaust manifolds, a few accessory brackets, the fuel pump...and the kicker....the FLYWHEEL! I say this because I had the whole thing back together and all bolted up, jumped in it for the moment of truth and the starter never touched the flywheel.

ANYWAY I digress. Small block Olds motors are still very easy to find. Look in the local yards in big Olds and Buicks, and the 78-80 Firebirds had an Olds 403 (they are harder to find). Everything will bolt up to stock locations however you may have to reposition a sensor or two depending on what the motor comes out of.

And last of all PLEASE PLEASE I BEG OF YOU....DON'T desicrate your Olds with a Chebby motor!!!

Have Fun!

John
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