350 swap project

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10-21-2010, 04:20 PM

#51

five7kid

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Car: 82 Berlinetta/57 Bel Air

Engine: LS1/LQ4

Transmission: 4L60E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

Quote:

Originally Posted by endo666

im going to check the machine ticket for the heads and maybe ill call up the machine shop and see if it had hardened valve seats put in because i think i have heard you can have that done.

Yes, it can (and should) be done. In my search of your head casting #, I came across someone selling a set that said they had hardened seats. Your pictures aren't completely definitive, but I looked as best I could at them before I posted, and it does not appear as though they have hardened seats. In the other site, I would believe them based on their photos.