5.3 liter heads ...who is using these ?
12-23-2004, 11:01 PM
#1
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5.3 liter heads ...who is using these ?
I was just wondering who is using these heads and what kind of power your making with them ...Can I get some stats ?
Im thinking of buying a set although im undecided .
Thanks for any replies , Robb
Im thinking of buying a set although im undecided .
Thanks for any replies , Robb
12-24-2004, 01:19 AM
#2
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Re: 5.3 liter heads ...who is using these ?
5.3 heads are very common these days. They carry the same ports as your 5.7 heads, the only diffrence being a smaller combustion chamber. This will give you the advantage of more compression without the loss of piston to valve clearence. Almost every head porter uses these heads, and they can make great power in any particular application. It's a great head for those on a budget also. Just make sure to upgrade the valves. The stock truck valves are kinda small.
12-24-2004, 01:24 AM
#3
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Re: 5.3 liter heads ...who is using these ?
Originally Posted by Beast96Z
5.3 heads are very common these days. They carry the same ports as your 5.7 heads, the only diffrence being a smaller combustion chamber. This will give you the advantage of more compression without the loss of piston to valve clearence. Almost every head porter uses these heads, and they can make great power in any particular application. It's a great head for those on a budget also. Just make sure to upgrade the valves. The stock truck valves are kinda small.
I was wondering about how much it would cost , if I bought my own heads , how much a loacl machine shop would charge for the porting and valve job .
12-24-2004, 12:35 PM
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Re: 5.3 liter heads ...who is using these ?
I would make sure the local machine shop knows what they are doing before I drop my heads off with them. They may be pro's at some old school stuff and not have a clue when it comes to LS-1's. There are to many sponsors that sell these heads already ported and complete for $1000-$1500 for me to worry about the local guys. On the other hand, our local shop charges $700-$800 for P&P, valves, valve job, and so on. I wouldn't let them touch my stuff though. Maybe your machine shop has a better reputation?
12-24-2004, 06:10 PM
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Re: 5.3 liter heads ...who is using these ?
Originally Posted by danziger
I've heard that TEA (not sure if sponsor) makes a pretty wicked set of 5.3s... I have fully-built 5.7s, so can't give you any first-hand info...
Last edited by robb4964; 12-24-2004 at 06:16 PM.
12-26-2004, 12:23 AM
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Re: 5.3 liter heads ...who is using these ?
I have a set for sale. They are mildly ported. I picked up 25hp with them. I'm buying AFR's now so I'm selling them. If you want them let me know. They have comp 918 springs on them, titanium retainers, and they were upgraded to the LS1 valves. I only have about 3000 miles on them.
$500
PM me if interested.
$500
PM me if interested.
12-26-2004, 01:11 PM
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Re: 5.3 liter heads ...who is using these ?
There is a bad as* set for sale on LS1 tech. There being sold by one of the guys who used to work there, so you know the most time and effort were put into them. There TEA's to boot! There being sold by screen name BrianH.
12-26-2004, 05:50 PM
#12
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Re: 5.3 liter heads ...who is using these ?
Originally Posted by Beast96Z
There is a bad as* set for sale on LS1 tech. There being sold by one of the guys who used to work there, so you know the most time and effort were put into them. There TEA's to boot! There being sold by screen name BrianH.
01-02-2005, 07:34 PM
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Re: 5.3 liter heads ...who is using these ?
I know this doesnt apply to your setup but for other readers...
A guy I know has them on his '01(?) WS6 and hes putting down 525rwhp(?) running 6 psi with a Vortech SQ with liquid to air intercooler.
lol crazy choice I know but it works, he doesnt plan on running any more boost....
A guy I know has them on his '01(?) WS6 and hes putting down 525rwhp(?) running 6 psi with a Vortech SQ with liquid to air intercooler.
lol crazy choice I know but it works, he doesnt plan on running any more boost....