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Old Nov 4, 2024 | 01:02 AM
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Default Engine swap Question/discussion

So just asking but would it be possible to put a chevrolet performance zz632/1000 deluxe crate engine in a C3 specifically a 1979 model
what do you guys think ?
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Old Nov 4, 2024 | 07:01 AM
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If the 632 has the same mounts as the 454 big block, then it would bolt right in. And it would bolt to the TH350/TH400.
however, hood clearance would be an issue, the cooling system would be inadequate, and the differential would likely explode. I’m sure the trans wouldn’t be far behind it.
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Old Nov 4, 2024 | 07:22 AM
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Well, GM uses a tall deck block, so, have fun with fitment due to the raised cylinder heads. If GM is subsidizing you from their corporate ad budget, go for it. Otherwise, get Shafiroff to build you the same thing for half the price, and better quality.

When you're done, you'll probably have $50K in mods overall, tied up in a $15K car.......that's maybe worth $25K when it's over.

Last edited by Nikolai122; Nov 4, 2024 at 07:49 AM.
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Old Nov 4, 2024 | 03:23 PM
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If it is a tall deck it wont fit under an L88 hood either
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Old Nov 4, 2024 | 06:00 PM
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Welcome to the forum!

Is it possible? Absolutely! The 632 is nothing more than a tall deck big block, which has been fit into many C3’s a number of times. Might need to cut a hole in the hood though to fit that intake.



Is it feasible? Probably less so. If you want a 1,000 horsepower Corvette you’re probably better off modifying a C7, or better yet, try your hand at getting a C8 ZR1!

Last edited by Piersonpie; Nov 4, 2024 at 06:05 PM.
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Old Nov 4, 2024 | 07:42 PM
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My buddy tried he said it would hit in multiple places...I think a power brake booster would be an issue as well. My advice is to get the measurements and measure your engine compartment
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