6.0 Heads?
6.0 Heads? I hope this isn't a stupid question, but I have heard of both iron 6.0 heads and aluminum 6.0 heads...
What is the difference between the two? Obviously the iron is heavier, but are there any others? Is there a differant code for each? Which is more suitable for boost?
What is the difference between the two? Obviously the iron is heavier, but are there any others? Is there a differant code for each? Which is more suitable for boost?
12 Second Truck Club
Joined: Feb 2002
Posts: 5,574
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From: Sacramento, CA
Heads are the same I believe. The LQ9 has more compression but I am pretty sure that is due to pistons and not head design.
I'm sure someone will be along soon to correct any mistakes I have made. If not ask this question in the Truck forum.
I'm sure someone will be along soon to correct any mistakes I have made. If not ask this question in the Truck forum.
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TECH Addict
Joined: Oct 2002
Posts: 2,793
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From: Mefis
I would not run iron heads, they are heavier and will retain heat more than aluminum heads. All 6.0 heads should be aluminum is they are 2001 and newer castings (off the top of my head).
TECH Fanatic
Joined: Jul 2002
Posts: 1,218
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From: MI
I believe the exhaust ports are different on the LQ9 vs. the LQ4. They have D shaped exhaust ports and are more like the LS6 heads.
So I believe it sorta goes like this: LQ4 is comparable to the LS1's (with less compression), LQ9 is comparable to the LS6's (with less compression). But don't take this as fact, this is just what I have gathered in reading and research over the years.
So I believe it sorta goes like this: LQ4 is comparable to the LS1's (with less compression), LQ9 is comparable to the LS6's (with less compression). But don't take this as fact, this is just what I have gathered in reading and research over the years.
Originally Posted by Mike 01WS6
I believe the exhaust ports are different on the LQ9 vs. the LQ4. They have D shaped exhaust ports and are more like the LS6 heads.
So I believe it sorta goes like this: LQ4 is comparable to the LS1's (with less compression), LQ9 is comparable to the LS6's (with less compression). But don't take this as fact, this is just what I have gathered in reading and research over the years.
So I believe it sorta goes like this: LQ4 is comparable to the LS1's (with less compression), LQ9 is comparable to the LS6's (with less compression). But don't take this as fact, this is just what I have gathered in reading and research over the years.
As y2khawk put it, the reason they have different casting numbers is because of were they are cast and made of different stock.