Are stock LS1 heads worth porting?
Are stock LS1 heads worth porting? I just heard that I can get heads ported and polished locally for $300. Would it be worth it to do this and just a cam instead of the heads / cam idea I've been thinking about? How would a local shop working on LS1 heads compare to the Patriot or TSP PRC heads? Thanks,
-Marc
-Marc
Marc, I have a set of an LS1 853 casting that were ported and polished with dual springs and bigger valves. They really awoke my trans am . I really mean that. I guess it all depends on the person that is going to do the job. Good luck!!!
Originally Posted by trans_am_31
Marc, I have a set of an LS1 853 casting that were ported and polished with dual springs and bigger valves. They really awoke my trans am . I really mean that. I guess it all depends on the person that is going to do the job. Good luck!!!
It all depends on how good the porting is. If you have someone local do it, ask for a flow sheet. There are many talented hand porters out there. We do have several options we can offer you. If you have any questions, please give us a call.
I have a set of 853 heads and was thinking the same thing.
Was also informed by a friend that if you have never ported any ls1 heads, that it would be better off that you let the pros do it, as it is easy to hit a water jacket.
Was also informed by a friend that if you have never ported any ls1 heads, that it would be better off that you let the pros do it, as it is easy to hit a water jacket.
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Originally Posted by shouldaboughttheZ
I have a set of 853 heads and was thinking the same thing.
Was also informed by a friend that if you have never ported any ls1 heads, that it would be better off that you let the pros do it, as it is easy to hit a water jacket.
Was also informed by a friend that if you have never ported any ls1 heads, that it would be better off that you let the pros do it, as it is easy to hit a water jacket.
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On The Tree
Joined: Mar 2005
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around 430 RWHP ,380 TQ cammed 01 WS6 with 2.02 1.575 manly racemaster valves with fully polished and ported factory heads, Trend Fully hardend pushrods, COMP TI retainers, Dual Valve spring's
custom comp 228 236 588 578 114 ,ARP hardware
custom comp 228 236 588 578 114 ,ARP hardware
Originally Posted by GuitsBoy
Tough to go wrong with patriot, especally with the amazing prices lately...
give gunnar a call.... great service and now with these bogus prices you can have the best of both worlds... new heads and a port job
Originally Posted by dug
Id try to get some 4.8, 5.3 heads for more compression. If they can be found cheap enough.
-T
Very true. I was thinking if you could get the 4.8/5.3 heads for free.
I think that compression would be worth more than a cam with 10 more degrees of duration with less compression. Some dynos have shown that 450rwhp is possible with less than 230 duration.
I think that compression would be worth more than a cam with 10 more degrees of duration with less compression. Some dynos have shown that 450rwhp is possible with less than 230 duration.
To do it correct it's best to have the heads ported by a CNC machine with a good program. This allows the ports to be much more consistant. I'm not implying that a local shop can't do a good port job. I just don't think you can get much in hand porting for $300.
Originally Posted by RedSlpZ
I wouldn't mind getting my 241's ported and polished. Then possibly milled for some compression. I think i will give Gunnar a call myself.
We are here 7:30-5:00 central time. Monday-Friday.
