Thank You! 
lets talk about LS7 HEADS ....
Thread Starter
Teching In
Joined: Oct 2007
Posts: 6
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lets talk about LS7 HEADS .... i have been searching here and there ..looking for options
so far :
West Coast Cylinder Heads ..
Precision Race Componets CNC Ported LS7 Heads:
ETP heads ....
any one hae used any of the above or any other option plz chime in with ur experience ....
what typicall cost ??
do u need to change rocker arms or not type of valves ?!
what are the avreage HP gains ..?
thanks
so far :
West Coast Cylinder Heads ..
Precision Race Componets CNC Ported LS7 Heads:
ETP heads ....
any one hae used any of the above or any other option plz chime in with ur experience ....
what typicall cost ??
do u need to change rocker arms or not type of valves ?!
what are the avreage HP gains ..?
thanks
WCCH LS7's I got a set from Richard @ westcoast + a mamo ported LS7 intake. I really don't remember the total cost but it was around $3300, I think. Call him, he knows his stuff ! I would'nt mind trying the fast 102mm but no good comparisons yet. + lots a dough for that intake !
Richard re CNC's the exhaust yet leaves the intake alone. I polished up the intakes the best I could to get rid of the rouch CNC ing that GM did.
The PRC's are nice too, but I don't think they do anything to the Exh ports?
I've had 0 problems with the heads. Had to drop the engine for a bad lifter n went with the Morels.
I used Harland Sharp LS7 Roller Rockers that bolt right to the factory pedistal. I think they cost + - $650 7.475 pushrods.
I'll Finally get some dyno numbers when I fly home 4 labor day.
Richard re CNC's the exhaust yet leaves the intake alone. I polished up the intakes the best I could to get rid of the rouch CNC ing that GM did.
The PRC's are nice too, but I don't think they do anything to the Exh ports?
I've had 0 problems with the heads. Had to drop the engine for a bad lifter n went with the Morels.
I used Harland Sharp LS7 Roller Rockers that bolt right to the factory pedistal. I think they cost + - $650 7.475 pushrods.
I'll Finally get some dyno numbers when I fly home 4 labor day.
Last edited by davidws6; Aug 23, 2009 at 10:27 AM. Reason: .
PRC does both intake and exhaust.
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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!
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Valve Covers Had to use the Scoggin Dicky 3/4" spacers for the clearance of the Harland Sharp LS7 Rockers. Other then that, all good !! So far no leaks r noise, which is a good thing !!
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Verdad Gallardo Thread Starter
Teching In
Joined: Oct 2007
Posts: 6
Likes: 0
Thread Starter
Teching In
Joined: Oct 2007
Posts: 6
Likes: 0
I got a set from Richard @ westcoast + a mamo ported LS7 intake. I really don't remember the total cost but it was around $3300, I think. Call him, he knows his stuff ! I would'nt mind trying the fast 102mm but no good comparisons yet. + lots a dough for that intake !
Richard re CNC's the exhaust yet leaves the intake alone. I polished up the intakes the best I could to get rid of the rouch CNC ing that GM did.
The PRC's are nice too, but I don't think they do anything to the Exh ports?
I've had 0 problems with the heads. Had to drop the engine for a bad lifter n went with the Morels.
I used Harland Sharp LS7 Roller Rockers that bolt right to the factory pedistal. I think they cost + - $650 7.475 pushrods.
I'll Finally get some dyno numbers when I fly home 4 labor day.
Richard re CNC's the exhaust yet leaves the intake alone. I polished up the intakes the best I could to get rid of the rouch CNC ing that GM did.
The PRC's are nice too, but I don't think they do anything to the Exh ports?
I've had 0 problems with the heads. Had to drop the engine for a bad lifter n went with the Morels.
I used Harland Sharp LS7 Roller Rockers that bolt right to the factory pedistal. I think they cost + - $650 7.475 pushrods.
I'll Finally get some dyno numbers when I fly home 4 labor day.
Thread Starter
Teching In
Joined: Oct 2007
Posts: 6
Likes: 0
__________________
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!
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!
Exh flow vs PRC n WCCH According to the info on the PRC heads,
@ 600 lift the PRC flows 235CFM 700 is 246 CFM
@ 600 lift the WCCH flows 244 CFM 700 is 250 CFM
Info from Richard @ WCCH
I don't remember what the Intakes flowed as I can't find my spec sheet.
@ 600 lift the PRC flows 235CFM 700 is 246 CFM
@ 600 lift the WCCH flows 244 CFM 700 is 250 CFM
Info from Richard @ WCCH
I don't remember what the Intakes flowed as I can't find my spec sheet.
We've gone well into the 600rwhp range with stock bottom end LS7s & 750+flywheel hp with the LS7 on a street 454 LSx Shortly you'll be able to buy the PRC LS7 head in a thicker ETP casting incase you guys need 6 bolts or thicker decks!!
Shortly you'll be able to buy the PRC LS7 head in a thicker ETP casting incase you guys need 6 bolts or thicker decks!!
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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
