ported vs. non ported power gain #'s
#1
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Location: Gretna, VA
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ported vs. non ported power gain #'s
how much of an actual diffrence in HP/TQ would i see in a 243 head ported w/ valve job vs. stock casting same springs , valves , cam. would milling the heads some ( .015 - .030 ) on stock castings produce more gains vs. porting. the reason im asking is a local shop can do the milling for $35.00 but they dont do any porting work. compared to the normal sponsors cost of $600.00 for porting heads. any suggestions or has any1 tried a setup like this or know some1 who has. i live in a small town and around here talking about a LS1 is like speaking Portugese NOBODY has a clue about any aspect of building these style engines
#2
If the heads are off, clean them up and get a valve job. You will pick up power. First set of heads I ported picked me up 23rwhp. Back then, I didn't want to spend the money. Now I have TFS heads. Do it yourself or have someone help you. Where is your town in VA. I'm up north and never heard of your town.
#3
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We've seen 30rwhp gains over stock ls6 heads with no extra decking on the heads. I think ifyou have p/v & some good decking we could see close to 40! Not bad for 575 worth of cnc work, valve job, decking & reassembly.
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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