LS2 crank in LS1 block
Yes. The crank is the same 3.622 stroke as any other stock crank. I'm not sure why you would want to swap out the crank in your engine for something exactly the same though.
It will work just fine... However the balance is different since the ls2 pistons are larger and weigh slightly different (3.898 bore vs. 4.0"). This is not an issue if you are going to use new aftermarket pistons and balance for that. If you are going all stock parts and just toss it together.... the balance will be off.
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From: >>>_FRISCO_MUSCLE_<<<
I'm in the process of building a new engine. Instead of using the stock LS1 crank came with my core short block, I wanna see what kind option I've. Not really feel like spending over $2k on an aftermarket stroker kit for 20rwhp and 30rwtq. Maybe I'll get aftermarket pistons and rod, but that's a maybe.
Did all the LS series engine crank has same stroke length?
I understand the balance difference between the LS1 and LS2 pistons. If the crank is balanced, everything should work fine. Unless the LS2 crank has different counter weight position, didn't they?
I really wanna know which LS crank can goes into a LS1 block and has different stroke length. If there's any, except for the crank itself, what else I need to make it work? ie, different main cap?
It will work just fine... However the balance is different since the ls2 pistons are larger and weigh slightly different (3.898 bore vs. 4.0"). This is not an issue if you are going to use new aftermarket pistons and balance for that. If you are going all stock parts and just toss it together.... the balance will be off.
I really wanna know which LS crank can goes into a LS1 block and has different stroke length. If there's any, except for the crank itself, what else I need to make it work? ie, different main cap?
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Reiterating what was said above, the LS1 and LS2 cranks are physically the same and are interchangeable. HOWEVER, you will need to have it rebalanced with your LS1 pistons and rods.
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Verdad Gallardo The LS1/LS2 cranks are the same casting number 12552216. I actually have 2 of them in my garage. I'm not a machinist, but from what I have read, it's actually easier to balance with a 6.0 crank than with a 5.7. This is due to more material left in the counterweight from the initial balance. It's easier to remove material than to put it back in. But either should balance out fine, it's not much of a weight difference.
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From: >>>_FRISCO_MUSCLE_<<<
Yea, I'll send everything to the machine shop and have them balance anyway. Is the 6.0 crank comes with 24X wheel? If the LS7 has 4" stroke, is it possible to put it into LS1?
Yes, but you also have a 58x wheel on the LS7 crank, not to mention a longer snout since its meant for the LS7 two stage oil pump. If you want a 4" stroke, you're better off with an aftermarket crank like a Callies C-series.
GMPP offers a 4 inch stroke forged crank without the extended snout that the LS7/9 has for the oil pump drive. It's 19170390. I can't seem to find a price on it tho.
It might make a good starting point for a stroker motor without spending too much. It will come with the 58x wheel which can be changed.
It might make a good starting point for a stroker motor without spending too much. It will come with the 58x wheel which can be changed.
