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LQ4 408 horsepower question

willizm

Very Nice, Very Evil
May 13, 2009
12,829
10,148
The Woodlands, TX
I wouldn't feel comfortable pushing a stock block to that power level. Check out Josh's car...allout06 on LS1Tech. Similar build to what you're looking to do. I think he made around 1100 rwhp through a 4L80

This. Also you have to think with a stock iron block you are putting alot of side load on that stroked crank so it's going to crack the cylinder walls at higher power levels. It's the reason why most guys shy away from a stroker setups on turbo applications. I have an iron block as a backup motor and plan on keeping it stock displacement/stroke.
 
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