LT1 Stroker questions
06-13-2010, 12:54 PM
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Staging Lane
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LT1 Stroker questions I just finished tearing down my project LT1 that came out of a B-Body. I hope to build either a 396 or a 409 stroker out it with LE3 heads and cam or AI heads and cam.... my question is where are there some good venders that offer 396 or 409 forged rotating assemblies? My other question is should I splay four-bolt mains on this block or are the two-bolt mains strong enough?
06-13-2010, 02:10 PM
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small shots of nitrous will be sprayed (150 shot at Max)
Max rpm's 6500-7000 would be fine and as high of a compression ratio as possible while allowing pump gas
06-13-2010, 08:15 PM
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im pretty sure you cant make an lt1 into a 409, boring it 60 over is really pushing it and the biggest crank you can clearence is a 3.875 stroke, anymore and you will hit water. So just go with the 396!!
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06-13-2010, 08:34 PM
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383 is plenty. I would go 383 if you are plannin to run any power adder. If you are planning on building an all motor beast and planning to spend every dime and nickel to get every lil HP gain then I would build a 396 with a metric **** ton of $ in the heads
06-13-2010, 08:56 PM
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P.S. Something to think about.....if 33 cubic is so much much better than a 350, how much better would 59 cubic inches be? (This will probably open a can of worms!
) Last edited by stryker1320; 06-13-2010 at 09:07 PM.
06-13-2010, 09:23 PM
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This statement couldn't be more false. I know for a fact that at least 3 have been built with everyday GM LT1 blocks, NO filling or half fills, all with 4.00" cranks, and none of them hit water. It all depends on the machinist, how much time they want to take, and how much they pay attention to details. That's what I was told when I asked how it was done without hitting water.
P.S. Something to think about.....if 33 cubic is so much much better than a 350, how much better would 59 cubic inches be? (This will probably open a can of worms! )
P.S. Something to think about.....if 33 cubic is so much much better than a 350, how much better would 59 cubic inches be? (This will probably open a can of worms!
)
06-13-2010, 09:46 PM
#17
This statement couldn't be more false. I know for a fact that at least 3 have been built with everyday GM LT1 blocks, NO filling or half fills, all with 4.00" cranks, and none of them hit water. It all depends on the machinist, how much time they want to take, and how much they pay attention to details. That's what I was told when I asked how it was done without hitting water.
P.S. Something to think about.....if 33 cubic is so much much better than a 350, how much better would 59 cubic inches be? (This will probably open a can of worms! )
P.S. Something to think about.....if 33 cubic is so much much better than a 350, how much better would 59 cubic inches be? (This will probably open a can of worms!
)
06-13-2010, 10:35 PM
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i didnt know that a lt1 could be clearenced for a 4in crank, the biggest i heard of was a 400 ci, i guess the lt1 blocks have a lil bit more meat than i thought, but now that i think of it you can have the crank pins turned down to 1.8" instead of 2'' and not grind as much off the block.