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Old 08-05-2004, 06:24 PM
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Question 1958 Chevy, Belair engin swap

Can anyone tell me what engin mounts I'll need to put a 1986 chev 454 block in a 58 chevy belair and should I expect any problems . I am pulling out the 283 ,two speed power glide and want to use a turbo 350 behind the 454. Can someone shed some light ? This project will be my very last hot rod I ever do. Due to my age and ability, I am having a shop do the swap for me. So I must go with the right parts the first time or $$$$$$

Thanks, Pa Pete

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Old 08-05-2004, 06:45 PM
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They also came with a 348 cu in engine the big block at the time. So the engine bay is plenty big enough and motor mounts should be a bolt in. Problem areas: 1. This year used a belhousing trans mount so a new trans crossmember would be needed. 2. Exhaust clearance at the steering box will probably be a concern. Block hugger headers (ram horn style) have an outlet very close if not the same as factory dual exhaust and should work fine. 3. Oil pan to tie rod clearance could come into play but could be addressed with front/rear sump oil pans. 4. Rear end upgrade to handle the 454. 5. stiffer front springs and performance shocks. Overall it shouldn't be too rough of a swap. Good Luck and most of all have Fun!!
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Old 08-05-2004, 06:55 PM
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Correct me if I am wrong, but I believe that the 58s had a trans crossmember. The bellhousing mounts were from 55 to 57 in the cars. Trucks carried on with them for a few more years.
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Old 08-05-2004, 10:35 PM
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You might be right on that. It's been a while, I was thinking the cars and trucks were the same and lasted later as I converted a 60 pick up a while back and it had the belhousing mounts. If so thats one less thing to deal with..

Poncho I trust your feedback on things. Take a look at my post on "Cheep flame thrower" and let me know what you think. Thanks..
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Old 08-06-2004, 08:13 AM
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58 chevy engin swap!

Thanks Pony and Poncho 62, ( GOOD INFO )
That car does have a transmission cross member. So that might make it less of a problem I think.
I never though about the oil pan.
I'll let you guys know how it turns out. I'll keep watching the board for any additional contributions
Thanks again
Pa Pete
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