Heads?
Thread Starter
Racer
Joined: Nov 2008
Posts: 366
Likes: 0
From: Carol Stream Illinois
Heads?
Alright I got a question I'm confused about
I've heard, and have seen on videos, that people put escalade heads on their c5's
And have heard they give out a better flow than some performance heads.
I'm asking cause there is a guy on craigslist selling a longblock and I was thinkin about pickin up the heads, its the 6.0L
I was wondering if anyone has any knowledge on this? If so help me out
Thanks...
I've heard, and have seen on videos, that people put escalade heads on their c5's
And have heard they give out a better flow than some performance heads.
I'm asking cause there is a guy on craigslist selling a longblock and I was thinkin about pickin up the heads, its the 6.0L
I was wondering if anyone has any knowledge on this? If so help me out
Thanks...
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Most put them on for the larger combustion chambers when going FI to drop CR I believe. I think they are around 72 cc or something like that(not 100% sure). They flow like 243s from what I've heard.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
The 317 6.0 heads are basically large chamber versions of the 243 Z06 heads.
The larger 71cc combustion chamber lowers the compression ratio, which is what made them desirable and commonly used on FI applications.
They may flow better than stock LS1 heads, but for a naturally aspirated engine, the loss of compression is a step in the wrong direction.
The larger 71cc combustion chamber lowers the compression ratio, which is what made them desirable and commonly used on FI applications.
They may flow better than stock LS1 heads, but for a naturally aspirated engine, the loss of compression is a step in the wrong direction.
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Thread Starter
Racer
Joined: Nov 2008
Posts: 366
Likes: 0
From: Carol Stream Illinois
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,141
From: Dyer, IN
Do you understand why they are trying to steer you away from buying these heads for a N/A car?
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Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Thread Starter
Racer
Joined: Nov 2008
Posts: 366
Likes: 0
From: Carol Stream Illinois