Pulling the trigger on heads, questions inside.
Pulling the trigger on heads, questions inside. I've been looking at the PRC Stage 2.5 5.3 and the PRC Stage 2.5 LS6 heads. Is there much of a difference between the two?
Also, i'm wanting a 64cc or 62cc chamber (maybe smaller if i can get away with it) to bump the compression. Doing so will mean i'll need to change my pushrod length and possibly check PTV?
Also, i'm wanting a 64cc or 62cc chamber (maybe smaller if i can get away with it) to bump the compression. Doing so will mean i'll need to change my pushrod length and possibly check PTV?
Depends a lot on the camshaft your running. Dont worry though, give us a call with what your specs are & we will mill & setup the heads to your specs! 
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Banned
Joined: Aug 2011
Posts: 1,127
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From: IL
well from what i have seen the 2.5 5.3 heads are better in the lower range. the 2.5 ls6 heads are better up high and mid range. I got 215 prc heads so i get the best of everything lol and a ms3 thanks texas speed.
My cam is 228/235 .614/.621 111+2 It was spec'd for nitrous, made 381/365 but runs strong. I think some nice flowing heads will help this cam out quite a bit.
I ran the 5.3s on my motor with a cam similar to the tsunami and a FAST ad made 475 rwhp and 435 rwtq. Ive often wondered what some AFRs would have done but the numbers I got were awesome for the price of those heads.
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I've been looking at the PRC Stage 2.5 5.3 and the PRC Stage 2.5 LS6 heads. Is there much of a difference between the two?
Also, i'm wanting a 64cc or 62cc chamber (maybe smaller if i can get away with it) to bump the compression. Doing so will mean i'll need to change my pushrod length and possibly check PTV?
Also, i'm wanting a 64cc or 62cc chamber (maybe smaller if i can get away with it) to bump the compression. Doing so will mean i'll need to change my pushrod length and possibly check PTV?
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If I had to GUESS, 7.400", but until you use the tool and measure it is just a guess.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
