ls-won-84c10

who builds the best cnc ported ls3/l92 heads? i need a set for my tunnel ram'd ls3.

Tireburnin

iTrader: (42)

www.advancedinduction.com

See my signature. Good for 714hp NA with more to come when I get some time with the car to make a few changes.

ls-won-84c10

i dont have a set of heads at all. i'm wanting to buy a set ready to bolt on.

Tireburnin

iTrader: (42)

That's no problem, I didn't have a set of heads to send either. You have two options, Ai can either order some brand new cores from GM (they are cheap) or you can buy a set of used heads in good condition and send them in.

I just had them buy a set of new heads from GM and it worked great. I think it was only a few hundred dollars for brand new castings from GM.

Doug G

I was just talking to Kyle @ http://www.thompsonmotorsports.net/ about a motor and he's got some decent looking numbers posted CNC LS3/L92's I will be getting on the motor I'm ordering.

No clue how they compare to the other guys out there.

ls-won-84c10

thanks or the info fellas..

newschool72

iTrader: (12)

I think it was Hotrod mag. that just did a big comparo of about 12 different LS3 style heads. They flow benched them, then bolted each set on a 454 LS motor with a healthy cam and did a pull. Just went to the reading room( The John, Head,etc..etc...) and found the mag. It is HotRods feb. 2011 issue. They compared 9 differnt heads and the mast black label large bore heads blew the others away on average HP AND torque. Pretty good read.

jgillen91

iTrader: (1)

When your comparing flow numbers watch out for what bore they are tested on. Most advertise on a 4.125" bore.

newschool72

iTrader: (12)

Yep, and that HotRod test was on a big bore. It was interesting to see how the flow #s compared to the engine dyno #s. Its not a cut and dried fact that flow #s make the HP#s.

westTEX26

Texas Speed has them for like 1500$