cc'd a set of 5.3L truck heads....
10-04-2002, 04:41 PM
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cc'd a set of 5.3L truck heads.... Last week I posted looking for the cc's of a stock 5.3L truck head. I am in the process of laying out a set of pistons for a supercharged motor project. I cc'd them today and they are 68cc's. I also checked a set of LS1 heads at the same time and they are 64cc's.
Just wanted to pass on this data.
Just wanted to pass on this data.
10-04-2002, 04:43 PM
#2
Re: cc'd a set of 5.3L truck heads.... Why don't you cc the runners while you are at it?
The chambers are one thing the runners are something completely different. The intake and exhaust runner volume are the big mystery that everone has on the board here.
Bret
The chambers are one thing the runners are something completely different. The intake and exhaust runner volume are the big mystery that everone has on the board here.
Bret
10-04-2002, 04:51 PM
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Re: cc'd a set of 5.3L truck heads.... I think you got that backwards, the 5.3 is 64cc and LS1 is 68cc. My stock 5.7 chambers measured 67.6cc. My stock intake and exhausts ports measured 202cc and 76.2cc
10-04-2002, 05:03 PM
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Re: cc'd a set of 5.3L truck heads.... FWIW, I CC'd 2 sets of 98 ls1 heads. Both at 70cc.
A reputable CNC head shop also got 70cc on a 3rd set of 98 ls1 heads.
Maybe some of the early 98 heads had larger chambers then.
Steve
A reputable CNC head shop also got 70cc on a 3rd set of 98 ls1 heads.
Maybe some of the early 98 heads had larger chambers then.
Steve
10-06-2002, 10:23 PM
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Re: cc'd a set of 5.3L truck heads.... I checked them twice! The 5.3L chamber clearly looks larger! It appears to be much deeper on the spark plug side of the chamber. The overall chamber width is definately smaller on the 5.3 but much deeper as well. I'll check it again and also cc the runners.
10-07-2002, 09:16 AM
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Re: cc'd a set of 5.3L truck heads.... </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 9D9LS:
<strong>Last week I posted looking for the cc's of a stock 5.3L truck head. ... I cc'd them today and they are 68cc's. .</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Would you please post the casting number on that 5.3 head?
Thanks
<strong>Last week I posted looking for the cc's of a stock 5.3L truck head. ... I cc'd them today and they are 68cc's. .</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Would you please post the casting number on that 5.3 head?
Thanks
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10-07-2002, 11:12 AM
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Re: cc'd a set of 5.3L truck heads.... I was actually going to ask about the 6.0 or LS6 heads for use on a Supercharged setup as this sounds like the same route I will be taking.
Has anyone put this combination together or compared it to the 5.3L head yet?
Has anyone put this combination together or compared it to the 5.3L head yet?
