truck heads ???
Thread Starter
*Bad Trader*
Joined: Nov 2001
Posts: 1,459
Likes: 0
From: here and there
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">
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
Posts: 5,133
Likes: 0
From: Baton Rouge, LA
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>
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
Posts: 5,133
Likes: 0
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
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
Posts: 5,133
Likes: 0
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
Trending Topics
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
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
Posts: 5,133
Likes: 0
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.
Thread Starter
*Bad Trader*
Joined: Nov 2001
Posts: 1,459
Likes: 0
From: here and there
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">