Max Stroke
#1
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Max Stroke
What's the biggest stroke you can run on a stock bore with an aftermarket crank (maybe toss in a couple of options here too)? And if you do bore, I've heard that you can't do much off an LSx without sleeving it. Considering going bigger, but I don't want that expense of sleeving.
#2
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Eagle sells a 4.100", and Lunati sells a 4.125". The cheaper Eagle will give you 393? cubes and the Lunati will give you 395. This is considering a stock bore. Add 1 or 2 cubes if you move up to a 3.905 bore. The max I would ever take a LS1/6 block is 3.910" bore. Thats .012" over stock. The Eagle is the best bang for buck crank. The Lunati is max effort and 2 1/2 times the cost of the Eagle. Keep in mind that the longer stroke places more side load on the pistons, but it hasn't seemed to be a problem in the LSX motors. You could also purchase the LS2 block and use the above cranks for up to 418 cubes. LS2 blocks come with a 4" bore stock, and can be bored up to .030".
#3
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Dont run the 4.100 crank I ran into alot of piston skirt clearance problems with teh crank counterwieghts. It was a major PITA to get it right then some other problems took it out
#5
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Originally Posted by moeZ28
The biggest crank you can run without clearancing the block is a 3.900" crank. You have to clearance an LS1/6 block to run a 4" or bigger I am pretty sure. I may be wrong though.