Any 400hp cars with stock heads?
06-30-2003, 09:55 PM
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Any 400hp cars with stock heads? I recently ordered Patriot heads. I hope they are worth the effort. I've heard the stock heads flow pretty well. How many ponies will my heads be worth. The flow 296 intake and 233 exhausr at .600. 
07-01-2003, 01:32 AM
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Re: Any 400hp cars with stock heads? 5.3 heads with ceaned combustion chambers. They flow 296 intake and 234 exhaust. The cam is a custom Comp cam with XE-R lobes. 220/220 .581/563 112lsa.
07-01-2003, 01:47 AM
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Re: Any 400hp cars with stock heads? Guys with similar setups but smaller cams with A4's are making 406hp so I figured I would make 425+ with a M6. I also have all the bolt ons.
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07-01-2003, 12:10 PM
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Re: Any 400hp cars with stock heads?
Guys with similar setups but smaller cams with A4's are making 406hp so I figured I would make 425+ with a M6. I also have all the bolt ons.
with that cam i'd say 385-410 would be great numbers. Bigger cam will help more
Terry said it well though. Dont expect high numbers.. shoot for something low then anything better is a blessing
07-01-2003, 02:45 PM
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Re: Any 400hp cars with stock heads? Check out my new post on going 400+rwhp with stock heads 
https://ls1tech.com/threads/showflat...=7&fpart=1
https://ls1tech.com/threads/showflat...=7&fpart=1
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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
07-01-2003, 05:14 PM
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Re: Any 400hp cars with stock heads? I have a M6 car. The cam I am running is larger than the 224/224 at .200, .300 and .400 lift. Its also larger at .06 duration. The 224/224 at 114 will make less power than my cam.
and NO 