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Old 04-25-2004, 04:48 PM   #1
gtx28
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Join Date: Jan 2004
Location: USA
Posts: 329
Default GM motors

I had a few questions I thought that i could get answers for on here. I have seen that there are several diff versions of the 427ci motor, in the modern vettes.

There are the sleeved, or bored out motors like the darton sleeves out on the market, then also there are the factory c5r blocks. Well ive seen that block available in cast iron, but is it also available from gm in aluminum?

Also i was looking to find out what is the largest safe displacement for the ls1/ls6 aluminum motors? I have heard rumors of a 455ci project based off the gen3 motor. But have not seen any completed projects.
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