Should I Buy Levernois Stage 2 Head Or Send My Heads Out To Port ???
#1
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I have 03 zo6 243 set of heads. It will cost me $650 plus shipping to get this head ported (5 angle valve job,mill,port the runners,BOWL BLEND). Now the Levernois has a cnc ported stage 2 gm LS2/LS6 243 casting head for $1349.00 5 axis cnc machined, 220 cc intake runners, intake flow rate 305 cfm, exhaust flow rate 235 cfm, gm valves/seals, dual coil spring .670 lift, titanium retainers.
My questions is should I send my 243 heads out to get ported or should i just buy the Levernois heads already assembled & ready to go ?
Levnoris will give $300 core credit for my head so i will actually buy them heads for 1049.00.
My questions is should I send my 243 heads out to get ported or should i just buy the Levernois heads already assembled & ready to go ?
Levnoris will give $300 core credit for my head so i will actually buy them heads for 1049.00.
#4
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id say if your willing to pull your heads and send them out do that. dont get too caught up on flow numbers as most of the time they are using a 4.125 bore and 1 7/8ths pipe (or no pipe) to get the flow numbers. most people wont ever see them because of the stock ls1 bore size. I doubt it'd be worth the extra money for the assembled heads honestly. hard to say what power you'd get from each...flow numbers dont exactly translate into power.
#5
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Your heads are worth more then a core value of $300....you should be able to sell them outright for around $500 here in a very short time. Second, you heads are already equipped with lightweight sodium filled valves, if I remember correctly the Livernois uses solid stemmed LS2 valves...which isn't a huge deal but when it comes to valvetrain weight, every bit counts. When it comes to HP, I would venture to say that both heads when ported by the same place are gonna perform the same. I would probably just sell your Heads outright, and purchase the Livernois heads. You will get a fresh casting, with all new parts thats ready to run, and no downtime. Your heads would be a quick sale at $400-500, and the buyer would pay shipping as well....saving you additional money because you won't have to pay to send them in for core credit.
#6
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Your heads are worth more then a core value of $300....you should be able to sell them outright for around $500 here in a very short time. Second, you heads are already equipped with lightweight sodium filled valves, if I remember correctly the Livernois uses solid stemmed LS2 valves...which isn't a huge deal but when it comes to valvetrain weight, every bit counts. When it comes to HP, I would venture to say that both heads when ported by the same place are gonna perform the same. I would probably just sell your Heads outright, and purchase the Livernois heads. You will get a fresh casting, with all new parts thats ready to run, and no downtime. Your heads would be a quick sale at $400-500, and the buyer would pay shipping as well....saving you additional money because you won't have to pay to send them in for core credit.