LS3 Iron Crank?
Thread Starter
Intermediate
Joined: Sep 2011
Posts: 39
Likes: 0
LS3 Iron Crank?
Hi guys.
Thinking of changing out my 2000 C5 engine. LS1 currently has a A&A supercharger and headers. The trains is a 2004 Z01 as is the rear diff. I was dispointed to see that the 525 hp LS3 has a iron crank in it. If I buy and change the engine and add the blower back on and a 4:10 gear with a progressive Nos system. Will it hold up? Thinking of the 525 Hp unit. I hate to go the extra $$ for the LSX but will if its thought of as best.
Thanks.
Thinking of changing out my 2000 C5 engine. LS1 currently has a A&A supercharger and headers. The trains is a 2004 Z01 as is the rear diff. I was dispointed to see that the 525 hp LS3 has a iron crank in it. If I buy and change the engine and add the blower back on and a 4:10 gear with a progressive Nos system. Will it hold up? Thinking of the 525 Hp unit. I hate to go the extra $$ for the LSX but will if its thought of as best.
Thanks.
Intermediate
Joined: Jun 2014
Posts: 45
Likes: 0
As long as you don't have any detonation you should be ok, I had a blower on a 500 hp lt1 that I tore down for a stroker rebuild and the crankshaft was cracked, I went with a forged crank on the rebuild to be safe
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
It's not the crank you should worry about. Using a crate engine, unless forged, and lower compression built specifically for FI, is not your best value/idea. I'd think about a forged piston/rods shortblock, built for the boost you plan on using. You can order the correct CR with whatever heads you want, including your present ones.
