Important HEAD Questions ?????
Thread Starter
Joined: Dec 2003
Posts: 490
Likes: 1
From: Burlington, Ont. / North Van B.C.
Important HEAD Questions ????? OK..I know Absolute speed has some of the best 5.3 heads.
I think I know the compression ratio is around 10.8-1..?
NOW.... WHAT WOULD be the HP increase if i was just to swap on a set of 5.3 in place of my 5.7? no other mods!
I know that stock LS6 heads(10.5-1)cr are worth about 10hp more than
LS1 heads with a(10.1-1)cr.
I want to be running the Lingenfelter GT2-3 cam in the future with 5.3 heads.
will it give me 400 hp at the wheels?
I think I know the compression ratio is around 10.8-1..?
NOW.... WHAT WOULD be the HP increase if i was just to swap on a set of 5.3 in place of my 5.7? no other mods!
I know that stock LS6 heads(10.5-1)cr are worth about 10hp more than
LS1 heads with a(10.1-1)cr.
I want to be running the Lingenfelter GT2-3 cam in the future with 5.3 heads.
will it give me 400 hp at the wheels?
Originally Posted by wildta
OK..I know Absolute speed has some of the best 5.3 heads.
I think I know the compression ratio is around 10.8-1..?
NOW.... WHAT WOULD be the HP increase if i was just to swap on a set of 5.3 in place of my 5.7? no other mods!
I know that stock LS6 heads(10.5-1)cr are worth about 10hp more than
LS1 heads with a(10.1-1)cr.
I want to be running the Lingenfelter GT2-3 cam in the future with 5.3 heads.
will it give me 400 hp at the wheels?
I think I know the compression ratio is around 10.8-1..?
NOW.... WHAT WOULD be the HP increase if i was just to swap on a set of 5.3 in place of my 5.7? no other mods!
I know that stock LS6 heads(10.5-1)cr are worth about 10hp more than
LS1 heads with a(10.1-1)cr.
I want to be running the Lingenfelter GT2-3 cam in the future with 5.3 heads.
will it give me 400 hp at the wheels?
With the 5.3 heads having a very shrouded 3.80" bore chamber and a very small 1.89 intake valve then I would say the 5.3 heads would make less power stock then a stock 5.7 castings. The real benefits come from porting these heads properly, opening the chamber to 3.90 bore and installing a 2.02 intake valve. Hope this helps. BTW, I went 9's with our 5.3 heads.
