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Old 04-14-2008, 12:35 AM   #1
Bob's75Vettebaby
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What does it take to convert to a L82 350?

To make my 75 into a L82 vette what do I change????
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Old 04-26-2008, 09:53 AM   #2
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Re: What does it take to convert to a L82 350?

You need to change the heads, intake, and I believe the carb also has to be changed, but I'm not 100% on that.
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would that mean get a new cylinder or plug???
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Old 04-26-2008, 04:30 PM   #3
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Re: What does it take to convert to a L82 350?

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You need to change the heads, intake, and I believe the carb also has to be changed, but I'm not 100% on that.
It takes a lot more than that. The L82 uses 4 bolt mains and a forged crank, in addition to a different cam and higher compression pistons. Even then, the L82 is a dog compared to more modern setups, like a vortec kit. With the money you spent converting to an L82 setup, you would be far better off rebuilding and going to a higher compression setup or even getting a crate engine.
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Old 04-28-2008, 01:01 PM   #4
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Re: What does it take to convert to a L82 350?

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Originally Posted by thrasher
It takes a lot more than that. The L82 uses 4 bolt mains and a forged crank, in addition to a different cam and higher compression pistons. Even then, the L82 is a dog compared to more modern setups, like a vortec kit. With the money you spent converting to an L82 setup, you would be far better off rebuilding and going to a higher compression setup or even getting a crate engine.
the Vortec heads work pretty good with a L-82 spec cam
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Old 04-28-2008, 10:35 PM   #5
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Re: What does it take to convert to a L82 350?

The L82 cam is really mild. The one I pulled from a stock L82 was the old '929 cam - GM 3896929 .390"/.410" 196/205 112 LSA. It went to the scrap bin in favor of a slightly less mild aftermarket cam - .443" /.465" - 214/224 - 112 LSA, and performed much better with the '416 heads which replaced the original stock smog-dog castings.




Not to hurt anyone's feelings, but the L82 was about on par with a 1984 Ford Fiesta for power. If you're really going to spend any money on it, take the previous advice and start with a later (roller) block and create something worthy of a Y-Car.
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Old 04-29-2008, 05:36 AM   #6
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Re: What does it take to convert to a L82 350?

i agree it is a mild cam,,,last one i got was ,,like 34 dollar TRW replacement ,,he didn't even plan on running headers
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