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what's everyone using for heads on a single turbo 347?

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Old 07-28-2007, 06:42 PM
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Default what's everyone using for heads on a single turbo 347?

Just as the title states Im trying to lay down some ground info. If any one has some info on cams too?
Old 07-28-2007, 06:53 PM
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6.0 heads are cheap and easy to find. Basically they flow like a LS6 head but have larger combustion chambers and alot of guys use these with their stock bottom ends to drop the compression down to around 9.5:1, maybe 9.2:1 depending on the head gaskets and if they have the chambers opened up. they usually go for around $300.
Old 07-28-2007, 06:59 PM
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Originally Posted by 30th t/a
6.0 heads are cheap and easy to find. Basically they flow like a LS6 head but have larger combustion chambers and alot of guys use these with their stock bottom ends to drop the compression down to around 9.5:1, maybe 9.2:1 depending on the head gaskets and if they have the chambers opened up. they usually go for around $300.

So ya say a patriot performance lq9 head would be my best bet.
Old 07-28-2007, 07:08 PM
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I have AllPro's, but the AFR's work really well and maintain stock locations for all your accessories.
Old 07-28-2007, 07:23 PM
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Originally Posted by 30th t/a
6.0 heads are cheap and easy to find. Basically they flow like a LS6 head but have larger combustion chambers and alot of guys use these with their stock bottom ends to drop the compression down to around 9.5:1, maybe 9.2:1 depending on the head gaskets and if they have the chambers opened up. they usually go for around $300.
+1 i agree, i have hand ported 6.0L heads and they are fine with me
Old 07-28-2007, 07:27 PM
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looks like your sig shows you have afr heads are you asking for someone else?
Old 07-28-2007, 07:45 PM
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AFR 225's 72 cc
Old 07-28-2007, 08:39 PM
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I would stick with the afr 205's but thats just me. I put down 620rwhp with a very mild cam (224 on a 114) I would think the torque #'s down low would be better. just depends how you drive the car also.
Old 07-29-2007, 06:34 AM
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My AFR's Are 59cc I would be trying to get the compression down to 9.0 or maybe lower. I can probably do that with a custom piston but its going to be huge money. Unless someone has do it already.
Old 07-29-2007, 08:40 AM
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You can have the combustion chambers opened up on your afr's.
Old 07-29-2007, 10:00 AM
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Sell the 59cc and get the 66's back. You don't want super dish pistons.Of course compression goes around the setup and turbo location.

We prefer the thicker deck heads.Lifted a few 6.0 /Patriot heads while ussing turbo's.
Old 07-29-2007, 10:02 AM
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why can't he open up the combustion chambers hawk might be easier than selling and buying.
Old 07-29-2007, 01:05 PM
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Didnt realize they were milled.
Old 08-02-2007, 06:17 PM
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What about LS6 heads for an STS kit how will they work?
Old 08-02-2007, 06:24 PM
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im using untouched 317 heads
Old 08-02-2007, 06:57 PM
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Im using 241 casting heads with bigger valves and many many hours of porting and polishing. Should have flow numbers next week.
Old 08-05-2007, 09:08 AM
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I think im going to go with trick flows
Old 08-05-2007, 10:08 AM
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You just made the BEST decision they are the BEST just by a little over the ETP and AFR, but it is noticeable.



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