Which heads came from which engine?
Dec 8, 2007 | 05:21 PM
#1
Which heads came from which engine?
Been looking for a source for all this but it's spread so thin its a pain to compile.
I'm going to start ammassing parts for a build and need to get rolling on this now.
Looking for possibly some 317 heads but want to shop a little before blowing the money. Maybe salvage yards, e-bay, here, etc.
So which engine came with which heads?
What was the cumbustion chamber volume?
If you have a link that states all just post em up.
4.8l has which heads?
LM7 has which heads?
LQ4 has which heads?.....317s?
LQ9 has which heads?
LS1 has which heads?
LS2 has which heads?
LS6 has whick heads?.....243s?
I'm going to start ammassing parts for a build and need to get rolling on this now.
Looking for possibly some 317 heads but want to shop a little before blowing the money. Maybe salvage yards, e-bay, here, etc.
So which engine came with which heads?
What was the cumbustion chamber volume?
If you have a link that states all just post em up.
4.8l has which heads?
LM7 has which heads?
LQ4 has which heads?.....317s?
LQ9 has which heads?
LS1 has which heads?
LS2 has which heads?
LS6 has whick heads?.....243s?
Last edited by TG02Z71; Dec 8, 2007 at 06:00 PM.
Dec 8, 2007 | 05:22 PM
#2
Found some good info here, hope its all correct.
http://www.carcraft.com/techarticles...ads/index.html
http://www.carcraft.com/techarticles...ads/index.html
Dec 8, 2007 | 05:54 PM
#4
Been looking for a source for all this but it's pread so thin its a pain to compile.
I'm going to start ammassing parts for a build and need to get rolling on this now.
Looking for possibly some 317 heads but want to shop a little before blowing the money. Maybe salvage yards, e-bay, here, etc.
So which engine came with which heads?
What was the cumbustion chamber volume?
If you have a link that states all just post em up.
4.8l has which heads? 862/706
LM7 has which heads? 862/704
LQ4 has which heads?.....317s?
LQ9 has which heads? 317
LS1 has which heads?
LS2 has which heads? 243
LS6 has whick heads?.....243s?
I'm going to start ammassing parts for a build and need to get rolling on this now.
Looking for possibly some 317 heads but want to shop a little before blowing the money. Maybe salvage yards, e-bay, here, etc.
So which engine came with which heads?
What was the cumbustion chamber volume?
If you have a link that states all just post em up.
4.8l has which heads? 862/706
LM7 has which heads? 862/704
LQ4 has which heads?.....317s?
LQ9 has which heads? 317
LS1 has which heads?
LS2 has which heads? 243
LS6 has whick heads?.....243s?
Dec 8, 2007 | 06:07 PM
#5
Here are a couple more for you ->
4.8l has which heads? 862/706
LM7 has which heads? 862/704
L33 has which heads?.....799 essentially the same as 243's on the LS6 minus the sodium filled valves. This is the aluminum H.O. 5.3
LQ4 has which heads?.....317
LQ9 has which heads?.....317
LS1 has which heads?.....241
LS2 has which heads?.....243
LS6 has whick heads?.....243
4.8l has which heads? 862/706
LM7 has which heads? 862/704
L33 has which heads?.....799 essentially the same as 243's on the LS6 minus the sodium filled valves. This is the aluminum H.O. 5.3
LQ4 has which heads?.....317
LQ9 has which heads?.....317
LS1 has which heads?.....241
LS2 has which heads?.....243
LS6 has whick heads?.....243
Dec 8, 2007 | 06:17 PM
#6
Here are a couple more for you ->
4.8l has which heads? 862/706
LM7 has which heads? 862/704
L33 has which heads?.....799 essentially the same as 243's on the LS6 minus the sodium filled valves. This is the aluminum H.O. 5.3
LQ4 has which heads?.....317
LQ9 has which heads?.....317
LS1 has which heads?.....241
LS2 has which heads?.....243
LS6 has whick heads?.....243
4.8l has which heads? 862/706
LM7 has which heads? 862/704
L33 has which heads?.....799 essentially the same as 243's on the LS6 minus the sodium filled valves. This is the aluminum H.O. 5.3
LQ4 has which heads?.....317
LQ9 has which heads?.....317
LS1 has which heads?.....241
LS2 has which heads?.....243
LS6 has whick heads?.....243
Read something about that helping keep them cooler and lighter.
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Dec 8, 2007 | 07:55 PM
#9
I believe that the sodium filled valves were on the exhaust side only. I read somethin about it last night.
also, from the same site where I found that info they mentioned that the 5.3's '04 and up were outfitted with heads that had D shaped ports. Maybe it was just referring to the L33 which I think began to be an option around '05'ish?
also, from the same site where I found that info they mentioned that the 5.3's '04 and up were outfitted with heads that had D shaped ports. Maybe it was just referring to the L33 which I think began to be an option around '05'ish?
Dec 9, 2007 | 10:48 AM
#10
Great information guys, thanks.
Now which would suit a 5.3l to a forged 5.7l conversion with about 10-12 psi of boost max?
From what I keep hearing and seeing the 317s are a nice way to go if your on a budget because they are relatively cheap and easy to find and also have a larger chamber to keep the compression low, say 9-5-1 ratio??
True or is there something better? And yes I'm trying to stay on a budget but we will see how long that idea lasts.
There just are no definitive posts with a lot of detailed information, I want to be informed before I take the plunge, as much as possible anyway.
Now which would suit a 5.3l to a forged 5.7l conversion with about 10-12 psi of boost max?
From what I keep hearing and seeing the 317s are a nice way to go if your on a budget because they are relatively cheap and easy to find and also have a larger chamber to keep the compression low, say 9-5-1 ratio??
True or is there something better? And yes I'm trying to stay on a budget but we will see how long that idea lasts.
There just are no definitive posts with a lot of detailed information, I want to be informed before I take the plunge, as much as possible anyway.