Lets talk about heads...
04-29-2002, 01:32 AM
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Lets talk about heads... What are the actual physical and performance differences between 5.3, 5.7, 6.0, and LS6 heads? With a quality stage II job to each, what would be the performance difference and why....?? Just want to hear everybody's thoughts and expertise...
Joe
Joe
04-29-2002, 03:50 AM
#2
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Re: Lets talk about heads... Joe.....
I should have read your question/thread first. I just posted the same question in another thread. https://ls1tech.com/ubb/cgi-bin/ulti...c;f=1;t=004741
I am on the fence as to buying another complete set of heads [if] my old 5.7 LS1 heads will perform about the same as a similarly ported set of 6.0 truck heads, etc. I am looking for about 10.5:1 compression ratio, so I dont need a set of heads that will yield extremly high or low CR from stock. Just looking for flow numbers.....
vulva? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Ron,
<small>[ April 29, 2002, 04:25 AM: Message edited by: Kimchee and Rice ]</small>
I should have read your question/thread first. I just posted the same question in another thread. https://ls1tech.com/ubb/cgi-bin/ulti...c;f=1;t=004741
I am on the fence as to buying another complete set of heads [if] my old 5.7 LS1 heads will perform about the same as a similarly ported set of 6.0 truck heads, etc. I am looking for about 10.5:1 compression ratio, so I dont need a set of heads that will yield extremly high or low CR from stock. Just looking for flow numbers.....
vulva? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Ron,
<small>[ April 29, 2002, 04:25 AM: Message edited by: Kimchee and Rice ]</small>
04-29-2002, 10:55 AM
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Re: Lets talk about heads... LS6/6.0L heads seem to work better on larger motors, 5.3/5.7L heads seem to work best on the stock bottom end.
I run the 5.3L heads right now (11.3:1 CR). I'll probably try them first on my new motor, then upgrade to the LS6/6.0L heads if I'm not happy with the results.
I run the 5.3L heads right now (11.3:1 CR). I'll probably try them first on my new motor, then upgrade to the LS6/6.0L heads if I'm not happy with the results.
04-29-2002, 10:59 AM
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Re: Lets talk about heads... Thanks for the link Ron, and the info Terry......
I've been using this username since early '99 on the f-body UBB's... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Joe
I've been using this username since early '99 on the f-body UBB's... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Joe