right now i am running a ms4 with stock heads, i have a set of ls6 heads (243's) i am thinking about having them ported. anyone running this set up? what kind of gains could i expect from this?

 

anyone?

 

I hve only seen results with the 5.3 heads and MS4. However I am sure that they will be worth 25+RWHP.

 

I've got TSP's LS6 S1 heads and that cam and made 430 Rear wheel through a 4000 stalled automatic...

 

im running a ms3 cam with TSP Stage 3 LS6 heads 92/92 and i put down 480 rwhp through a six speed

 

impressive numbers!

 

thank you thank you. it freaked us out at the shop too lol

 

They are impressive, but I'm going through a Ported/Polished Shaner S2 TB, LS6 intake, have the stage I heads and MAC midlength headers and made 430 through a Stalled Auto, so 480 sounds right with the extra mods plus M6 dyno pull. That setup is REALLY capable, and seems to love the 92/92 combo.

I'm currently doing a 383 build and am going back with the same heads and cam, and will add Longtubes and Fast 92/92. I'd like to get close to 500 with that combo.

 

yea before i put the 92/92 on i made 440 with a ls1 intake and a s2 tb. i also have the longtubes and x pipe to go along with it. that pull was with a huge exhaust leak and drag radials on so that robbed a lil power but not much....im currently lookin for a 12 Bolt around TX area if you know anyone

 

We have PRC LS6 Stage 1's on special, or we can cnc port & setup your heads for the MS4 camshaft. We have the cylinder head configured for your application, give us a call if we can help!

http://www.texas-speed.com/shop/item...d=649&catid=20

 

sence i already have the heads, how much would you charge me to port them? and can i mill them any without having to worry about pistion to valve clearence?

thanks

 

Check my sig - 440rwhp on a mustang dyno. FAST 92/92 combo pretty much a waste on stock cubes though - gained next to nothing over the ls6 intake.

It ran very strong though, 120mph in the 1/4 N/A on a bad trans and near full weight Trans Am. BTW, I picked up 30rwhp/30rwtq w/the heads pretty much across the entire graph