lSA block VS LS3 block
Thread Starter
Racer
Joined: May 2012
Posts: 427
Likes: 10
From: Texas
lSA block VS LS3 block
I'm starting a build and had planed on using an LS3 block but have the opportunity to buy an LSA block. Any reason not to go with the lsa? No firm numbers but it will be a FI motor in the 750-850 range most likely. This is only the casting and mains, just the block..
Thx
Thx
7th Gear
Joined: Jan 2013
Posts: 7
Likes: 1
From: Boulder CO
I'm starting a build and had planed on using an LS3 block but have the opportunity to buy an LSA block. Any reason not to go with the lsa? No firm numbers but it will be a FI motor in the 750-850 range most likely. This is only the casting and mains, just the block..
Thx
Thx
Advanced
Joined: Mar 2012
Posts: 66
Likes: 1
From: Dallas Texas
It wouldn't make sense to use any other crank other than LSA at those power levels. It's a great crankshaft for the money. I've used them up to 1000+whp with no issues.
Last edited by harpinc; Jan 2, 2017 at 03:38 PM.
Drifting
Joined: Nov 2009
Posts: 1,385
Likes: 102
Not saying the lsa crank isn't good. But stock cranks easily take 1000hp and more they're very stout pieces. But if you were building a motor I'd assume you might go aftermarket for better options and still not be too expensive. Just seems both ways would be better than trying to source 8 bolt flexplates or flywheels which could be an issue depending on what converter or clutch you want to run.
