4evervette

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

trumper Z06

Go over to:

www.LS1Tech.com

seach under 4th gen. internal engine.

6Speeder

Texas Speed and Performance heads here, ported and decked .030", went from 541/482 to 572/511 SAE RW. Stock valves are just fine.

0Myhardtop

All LS7 heads when done properly will give net you nice gains. We had pretty good luck with the WCC heads, they consistently perform pretty well.

Average gains depends on your set up, but most people will see between 28 and 38rwhp gains and sometimes more.

No need to replace the rockers. My vote: replace the exhaust valves with Ti units over the stock sodium filled original equipment. If you supply the heads, cost is usually close to $1,000 ready for installation (milled, valve job, exhaust port cleaning and cast cleaning).

These heads has enabled us to produce between 590 and 600 to the tires with our cams.

Thanks,
Carlos

spdmn75

can't you do a SS valve on the exhaust side?

tjwong

Sure, I have used Ferrea SuperAlloy exhaust valves with excellent reliability. These will not break and engine speed is not sacrificed.

spdmn75

I have mine off right now and have been looking at this for more durability for spraying later

4evervette

thanks carlos ...this answer covers every thing in my mind..

4evervette

thanks for the info..

what kind of cam ur using with ur set up...

6Speeder

Carlos's OLD baby, the QM600, with AR headers and ported TB and intake. She's a runner!