LS6 head --> combustion chamber size?
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LS6 head --> combustion chamber size? Anyone know the combustion chamber size on the LS6 heads? I have heard anywhere from 63 to 65. Anyone actually CC a set yet?
Thanks!
Thanks!
Re: LS6 head --> combustion chamber size? Did you know the exaust ports are 2.5-3 cc smaller than the LS1? <img src="gr_images/icons/wink.gif" border="0">
This is what I understand:
4.8/5.3 60cc
LS6 64 cc
LS1 67.5 cc
6.0 70-71 cc
Now I'm wondering how much volume is decreased by milling each of these .010,.020,.030,.040 etc. The 6.0 heads are looking prety good right now. <img src="gr_images/icons/wink.gif" border="0">
This is what I understand:
4.8/5.3 60cc
LS6 64 cc
LS1 67.5 cc
6.0 70-71 cc
Now I'm wondering how much volume is decreased by milling each of these .010,.020,.030,.040 etc. The 6.0 heads are looking prety good right now. <img src="gr_images/icons/wink.gif" border="0">
Thread Starter
I can shift faster than you.
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From: Baton Rouge, LA
Re: LS6 head --> combustion chamber size? I didn't know that Scott. Cool info.
What size are the chambers on your 5.3l heads after porting and milling?
How much can be safley taken off before we run into intake manifold issues or decreasing the deck surface? I have heard of people going as much as 70 thousandths. <img src="gr_eek2.gif" border="0">
What size are the chambers on your 5.3l heads after porting and milling?
How much can be safley taken off before we run into intake manifold issues or decreasing the deck surface? I have heard of people going as much as 70 thousandths. <img src="gr_eek2.gif" border="0">
Re: LS6 head --> combustion chamber size? From what I'm told .040 is about the max without running into alignment problems with the manifold. I'm wondering if it's possible to shave down the manifold some though? I think it could be done. But anything higher than that anyway and you can't run a big cam. Even at .040 the ports may not line up just right, but I can remedy that problem. <img src="gr_grin.gif" border="0"> I plan on porting the LS6 intake anyway.
I haven't measured the chambers yet, I'm waiting for the valvejob. I'm going to measure the 5.3 heads soon and my stock 6.0's. I'll post when I do.
What would you do, 5.3 or 6.0 heads?
I haven't measured the chambers yet, I'm waiting for the valvejob. I'm going to measure the 5.3 heads soon and my stock 6.0's. I'll post when I do.
What would you do, 5.3 or 6.0 heads?
Thread Starter
I can shift faster than you.
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From: Baton Rouge, LA
Re: LS6 head --> combustion chamber size? [quote]Originally posted by Jantzer98SS:
<strong>What would you do, 5.3 or 6.0 heads?</strong><hr></blockquote>
I was using the 5.3l heads on my solid roller motor and loved them. I had originally purchased a set of 6.0l heads to use, but I decided against it at the time. If you can get the compression up with the 6.0l heads, I think there will be a nice set to go with.
I'm debating on which set I'll use when I do heads. I would love to try a set of LS6 heads if I can find some used and cheap.
<strong>What would you do, 5.3 or 6.0 heads?</strong><hr></blockquote>
I was using the 5.3l heads on my solid roller motor and loved them. I had originally purchased a set of 6.0l heads to use, but I decided against it at the time. If you can get the compression up with the 6.0l heads, I think there will be a nice set to go with.
I'm debating on which set I'll use when I do heads. I would love to try a set of LS6 heads if I can find some used and cheap.
