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LG4 swap to L83

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Old 01-17-2008, 11:58 AM
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Car: 1990 Corvette
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LG4 swap to L83

Hi

i have a 1986 trans am with a 305 LG4 but i want a 350 or more, i have found a L83 from a 1984 corvette so i want to swap it into the trans am and swap the crossfire to a tpi .
is it possible
Old 01-17-2008, 12:20 PM
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Re: LG4 swap to L83

It's possible.
Old 01-17-2008, 12:59 PM
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Re: LG4 swap to L83

Old 01-17-2008, 05:43 PM
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Re: LG4 swap to L83

Very possible. Under the intake manifold, its still just a small block Chevy.
Old 01-18-2008, 06:53 AM
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Re: LG4 swap to L83

hi
i think i will buy the engine and strocked it to 377
Old 01-18-2008, 09:24 AM
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If the cylinder walls are extremely clean, you can do that. The typical 3.75" stroke kit includes pistons that are .030" oversize, because the typical block used for this exercise needs a clean-up overbore. That bumps the displacement to 383 cubic inches.
Old 01-18-2008, 10:13 AM
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Re: LG4 swap to L83

yes, if the cylinder are not in good shape i will overbored to 4.030" with a 3.75 crankshaft to do a 383 .
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