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Old 10-25-2010, 05:46 PM
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small block to big block swap in a 91 camaro help!

im wanting to drop a 396 or a 454 in a 91 camaro. all the wires are gone already. i just wanted to know if would even fit before i waste my money or time. will i have to cut the engine compartment or modify anything major? and will a 700r4 transmission hook up to a big block chevy. if anyone can help i would appreciate it greatly. thanks, greg.

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Old 10-31-2010, 07:59 PM
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it will fit and i domt think you will hace 2 do any cutting on it ,y buddy had a 454 in a 84 z28 and yes the 700r4 will bolt 2 a big block but im not sure how it will hold up to it.
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Old 10-31-2010, 08:45 PM
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new suspension, cooling system, accessory brackets, custom headers and exhaust, new fuel system if ur going with a carb, subframe connectors to handle the torque, the 700r4 will not be able to handle the big block power, rear diff is weak, and you may have hood clearance problems. stick with a small block.

Last edited by bigdog7373; 10-31-2010 at 08:47 PM. Reason: spelling
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Old 11-01-2010, 05:55 PM
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Oh sorry, did i crush your dreams?
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Old 11-01-2010, 07:06 PM
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Quote:
Originally Posted by bigdog7373
the 700r4 will not be able to handle the big block power, .
I disagree with this although the others are good points
I ran a 454 with a 700r4 with no issues and that same set up is in a buddies car now with no issues.
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Old 11-01-2010, 07:09 PM
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Quote:
Originally Posted by raidmagic
I disagree with this although the others are good points
I ran a 454 with a 700r4 with no issues and that same set up is in a buddies car now with no issues.
It may have worked but the 700r4 has to be the worst transmission chevy has ever built. It may work but it definitely won't last nearly as long as a th350 or 400.
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Old 11-02-2010, 11:02 AM
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If you live in Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, or Summit counties your car must pass emissions testing. This swap will NOT be legal and will be grounds for failure. Do your research now before you spend the time and money.
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