cnc 317 heads ?
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cnc 317 heads ? as the title states I'm considering getting my 317 heads cnc ported with bigger valves i got one price for around 1500 bucks is it worth it? I'm building a lq4 with a single turbo looking for 650 to the wheels on low boost
650 to the wheels i wouldnt bother. Even if it is low boost. Spend the money on other parts like properly specked cam, turbo and stuff like that. Plenty of guys making great #'s on stock casting 317's.
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yea i know but i really only plan on putting this together once and if i ever get the urge to jus go insane with a massive turbo or twins that all the internal stuff is good for it so at most it would be changing the manifold and maybe the cam is 1500 reasonable for getting cnc porting this what i was told by TEA
I would suggest the stage 2 program with the bigger 2.04"/1.575 valve package for the build. The cost would be $1585.00 to port and work over your castings.
I would suggest the stage 2 program with the bigger 2.04"/1.575 valve package for the build. The cost would be $1585.00 to port and work over your castings.
yea i know but i really only plan on putting this together once and if i ever get the urge to jus go insane with a massive turbo or twins that all the internal stuff is good for it so at most it would be changing the manifold and maybe the cam is 1500 reasonable for getting cnc porting this what i was told by TEA I would suggest the stage 2 program with the bigger 2.04"/1.575 valve package for the build. The cost would be $1585.00 to port and work over your castings.
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From: Joliet,IL and Las Vegas 50/50
I agree with everyone else. Use that 1500 toward a better fuel system. It's really not needed for 317's. What intake manifold are you going with? Fwiw I'm running 9's with 317's that were just cleaned up.
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Verdad Gallardo Next season I am trying a set of CNC ported LS3 heads that I had kicking around
so I will have more of a comparison although different design. 
i just had my 317s cnc'd 226 intake 232 exhaust from advanced inductions for $999 also knocked down the chambers to 65cc's to get the compression up a little maybe check them out? you will make more power without having to push the blower harder to make it if you do the heads
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total engine air flow was who gave me that price and i was gunna run a ls6 intake and a custom cam and like dwayneogles said i could make the same or more power with less boost I'm jus super meticulous lol i have a guy who does porting posing for cheap should i just send them to him jus clean it up Ablakez28 whats your set up ??
total engine air flow was who gave me that price and i was gunna run a ls6 intake and a custom cam and like dwayneogles said i could make the same or more power with less boost I'm jus super meticulous lol i have a guy who does porting posing for cheap should i just send them to him jus clean it up Ablakez28 whats your set up ??
Last edited by oscs; Oct 8, 2014 at 05:30 PM.
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I would just like to be able to start around that area hp and the easier i can make it for the engine and turbo i would like to do you get what I'm saying I'm not like set in stone on that hp to start but while the engine is completely apart i figure id ask you guys and I'm in no rush to put it back because its a project and not my dd
also ill be running off 93
also ill be running off 93
Last edited by The Rookie24; Oct 8, 2014 at 07:05 PM.
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I would save up for a set of thick aftermarket castings, The stock casting good for you now and that power level but when you wanna start to push it you're gonna need some thicker, Stronger Heads.
So just do it once even if you have to wait a little and use what you have for now.
So just do it once even if you have to wait a little and use what you have for now.
Anyhow
LQ4, Ls9 gaskets, china studs, speed inc tu 1.5 cam, cast S480 1.32 ar
Went 125mph in the 1/8th and 9.0 150mph 1/4 on the limiter
