5.7 vs 6.1 cylinder heads?
Apr 7, 2007 | 11:16 PM
#11
On The Tree
Joined: May 2005
Posts: 178
From: Pearland, TX
Originally Posted by Sharadon
Under 400 cu inch I'll take a ported 5.7 head over a 6.1 head any day.
And spend 2-3 times as much $$$$. No one has asked what he wants to do. All he asked was if they were interchangeable, not what YOU would run or prefer, but if they could be swapped out.
Apr 15, 2007 | 12:51 PM
#12
TECH Regular
Joined: Feb 2006
Posts: 489
They can be swapped out, plane and simple. You would need additional machining cost's to the 6.1 heads to keep your compression ratio under 11:1 if you plan to put the 6.1 heads on a 5.7.
Last edited by hemidup; Apr 15, 2007 at 12:54 PM.
Apr 17, 2007 | 04:14 PM
#13
TECH Fanatic
Joined: Mar 2004
Posts: 1,007
From: Laguna Niguel, CA
Originally Posted by thehemi
WOW! Those heads flow great!
Didn't 1998 LS1 heads flow about 280 stock? I can't quite remember.
The ported 6.1's flow around 360! And look at the midlift number too!
Is there a way to put a set of these on my LS1?
Jun 1, 2007 | 12:35 PM
#14
Originally Posted by gun5l1ng3r
WOW! Those heads flow great!
Didn't 1998 LS1 heads flow about 280 stock? I can't quite remember.
The ported 6.1's flow around 360! And look at the midlift number too!
Is there a way to put a set of these on my LS1?
Didn't 1998 LS1 heads flow about 280 stock? I can't quite remember.
The ported 6.1's flow around 360! And look at the midlift number too!
Is there a way to put a set of these on my LS1?
The new heads I'm looking at are the L92 which will flow 375 or more CFM with little work. If you want big heads for an LS1 thats what I would get.
Thomas
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