Question about tuner built LS7 setup...
Thread Starter
Race Director
Joined: Jun 2003
Posts: 14,051
Likes: 9
From: Houston TX
Question about tuner built LS7 setup...
I am looking at one of the after market LS7 based setups as an upgrade to my C5 Z.. (I have read horror stories about GM crate LS7's so am not even going to bother)
My main question is what parts would be the most important to get the same 7000rpm red line as the GM built LS7?
Would using the GM crank and Ti rods with forged JE's work?
Are the LS7 heads with Ti valves the key?
My main question is what parts would be the most important to get the same 7000rpm red line as the GM built LS7?
Would using the GM crank and Ti rods with forged JE's work?
Are the LS7 heads with Ti valves the key?
Safety Car
Joined: Nov 2002
Posts: 4,394
Likes: 6
From: Melbourne FL
I'd say a well built shortblock will spin to 7K reliably. But, you will surely want to mention that point as a requirement to your engine builder. My 346 is set to 6700 now with no modifications to the stock bottom end.
I'd hazard to guess that the OE 427 can spin to 7K due to decreased reciprocating mass from the the Ti parts used.
I'd hazard to guess that the OE 427 can spin to 7K due to decreased reciprocating mass from the the Ti parts used.
