truck heads ???
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truck heads ??? what are the benifits to running a head of a 5.3 truck besides higher compression ratio? do they flow well compaired to the ls1 camaro heads <img src="images/icons/rolleyes.gif" border="0">
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Re: truck heads ??? The truck heads have nearly identical intake/exhaust ports compared to the 5.7l LS1 heads. Only major difference is combustion chamber volume and valve size.
Jason
[ December 02, 2001: Message edited by: Jason99T/A ]</p>
Jason
[ December 02, 2001: Message edited by: Jason99T/A ]</p>
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From: Baton Rouge, LA
Re: truck heads ??? [quote]Originally posted by Crazyquik:
<strong>What size valves are they?</strong><hr></blockquote>
1.89/1.55... stock 5.7 LS1 is 2.00/1.55
<strong>What size valves are they?</strong><hr></blockquote>
1.89/1.55... stock 5.7 LS1 is 2.00/1.55
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From: Baton Rouge, LA
Re: truck heads ??? [quote]Originally posted by wizkid:
<strong>Anyone know the exact chamber volume on the 5.3L heads?
ERic</strong><hr></blockquote>
Eric, from what I have read, the volume is 60cc. I'll try to CC a set before we ship some off to Craig @ GTP and after we get them back.
The main benefit is the added compression ratio. If you aren't looking for more than 10.8:1 or so, then stick with the 5.7l LS1 heads.
Jason
<strong>Anyone know the exact chamber volume on the 5.3L heads?
ERic</strong><hr></blockquote>
Eric, from what I have read, the volume is 60cc. I'll try to CC a set before we ship some off to Craig @ GTP and after we get them back.
The main benefit is the added compression ratio. If you aren't looking for more than 10.8:1 or so, then stick with the 5.7l LS1 heads.
Jason
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Re: truck heads ??? [quote]Originally posted by Jason99T/A:
<strong>
Eric, from what I have read, the volume is 60cc. I'll try to CC a set before we ship some off to Craig @ GTP and after we get them back.
The main benefit is the added compression ratio. If you aren't looking for more than 10.8:1 or so, then stick with the 5.7l LS1 heads.
Jason</strong><hr></blockquote>
Jason, thanks a bunch. 60cc chambers puts it right at/over 11.0:1. Please post your info. <img src="images/icons/smile.gif" border="0"> I am very curious.
My understanding is the 6.0L heads are the way to go. The best I can find out, those heads have around 63 cc chambers when milled 0.030". That is right at 10.6:1.
Thanks for the heads up. I am cc'ing my stock heads later this week. I am going to double check (for myself) the 67.3 advertised on the LS1 head.
Eric
<strong>
Eric, from what I have read, the volume is 60cc. I'll try to CC a set before we ship some off to Craig @ GTP and after we get them back.
The main benefit is the added compression ratio. If you aren't looking for more than 10.8:1 or so, then stick with the 5.7l LS1 heads.
Jason</strong><hr></blockquote>
Jason, thanks a bunch. 60cc chambers puts it right at/over 11.0:1. Please post your info. <img src="images/icons/smile.gif" border="0"> I am very curious.
My understanding is the 6.0L heads are the way to go. The best I can find out, those heads have around 63 cc chambers when milled 0.030". That is right at 10.6:1.
Thanks for the heads up. I am cc'ing my stock heads later this week. I am going to double check (for myself) the 67.3 advertised on the LS1 head.
Eric
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From: Baton Rouge, LA
Re: truck heads ??? [quote]Originally posted by Grinch(supra killa):
<strong>ok SO WILL a 563 LIFT CAM STILL BE OK??!!</strong><hr></blockquote>
Who is porting the heads for you? You need to talk with the person doing the work as that will determine if the cam will work well with them.
<strong>ok SO WILL a 563 LIFT CAM STILL BE OK??!!</strong><hr></blockquote>
Who is porting the heads for you? You need to talk with the person doing the work as that will determine if the cam will work well with them.
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Re: truck heads ??? i think im asking the wrong question.. with a cam on 563 lift will i have a problem witk piston to valve clearance if i DONT mill them <img src="images/icons/rolleyes.gif" border="0">