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69 Camaro convert 305 small block to 400 small block

3K views 4 replies 5 participants last post by  dragsterman 
#1 ·
i have a 69 camaro with a 305 small block. i found a 400 small block from a 1973 chevy truck and was wondering if i needed to mod anything to replace the 305 with the 400?
 
#3 ·
Jim is correct. Only problems I see is getting that smile off your face and replacing rear tires a lot. LOL :D

You may need to upgrade your radiator to a 3 or 4 core but otherwise it's drop-in.
 
#4 ·
P0rch,

Ditto on what Doug says!

(Note: Doug owns a nice 406 himself. So he knows a little something about removing smile spasms from his face)

Might want to consider either freshening up the tranny in your ride or having an aftermarket one put in. I would also get some fresh rubber for the wheels. They are gonna hate you!
 
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