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Boost and stroker Q

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Old 06-25-2010, 12:45 PM
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Default Boost and stroker Q

I am looking to build and LS1 for boost (single turbo). After doing a lot of reading on here and talking to some people I am slowly gathering parts.
At this time it looks like I am better off getting a higher mileage engine and re-building it with a better bottom end (likely forged).
I Also noticed that for about the same/little more cost I can go with a stroker crank (4.0 for ~383 6.28L).

I have been told that the stroker cranks are not "boost friendly".
Is this true?
If not would the gain be worth the cost?
Any recomendations for decent quality vs cost?
Old 06-25-2010, 02:13 PM
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There's alot of people running a 383 with a blower or turbo on here....

Im probably going to go with a 383 on my build FWIW
Old 06-25-2010, 02:48 PM
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Originally Posted by youngrigo
There's alot of people running a 383 with a blower or turbo on here....

Im probably going to go with a 383 on my build FWIW
Ok, have you heard of any premature crank failure issues?
Old 06-25-2010, 05:34 PM
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Originally Posted by mad max motorsports
Ok, have you heard of any premature crank failure issues?
Ive heard of people saying that 383s dont like boost... But those people dont have a 383 or had one!

The people that do.... Like them and the only regret i hear from people is wishing they would have gone bigger.
Old 06-25-2010, 06:55 PM
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The LS1 block is considered the weakest. Lots of engine builders frown on the 3.9 bore X 4.0 stroke combo. I frown on 4.0 stroke regardless. If you want 6.2L, buy an L92/LS3 with a stock crank, good pistons and rods. 4.10 bore X 3.622 stroke FTW. I would bet the house that it is more reliable and will hold more power. The 4.0+ bore gives you lot more head options as well.
Old 06-25-2010, 08:56 PM
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What about LS2 blocks?
Old 06-25-2010, 08:59 PM
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Originally Posted by mad max motorsports
What about LS2 blocks?
Better than LS1 and has a 4.0 bore. Good block.
Old 06-25-2010, 09:10 PM
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Originally Posted by 98Z28CobraKiller
Better than LS1 and has a 4.0 bore. Good block.
Are they basicly the same from early production through the last castings?
I assume the 4.0 crank will work just as well or better in the LS2 block.


Thanks for the input.
Old 06-25-2010, 09:15 PM
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Originally Posted by mad max motorsports
Are they basicly the same from early production through the last castings?
I assume the 4.0 crank will work just as well or better in the LS2 block.


Thanks for the input.
I'm not a fan of 4" stroke.



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