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Old Mar 31, 2009 | 08:21 AM
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Default Ms4+ls6 heads

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?
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Old Apr 1, 2009 | 07:29 AM
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anyone?
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Old Apr 1, 2009 | 11:13 AM
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I hve only seen results with the 5.3 heads and MS4. However I am sure that they will be worth 25+RWHP.
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Old Apr 1, 2009 | 12:51 PM
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I've got TSP's LS6 S1 heads and that cam and made 430 Rear wheel through a 4000 stalled automatic...
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Old Apr 1, 2009 | 01:16 PM
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im running a ms3 cam with TSP Stage 3 LS6 heads 92/92 and i put down 480 rwhp through a six speed
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Old Apr 1, 2009 | 02:01 PM
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Originally Posted by 19SS98
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!
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Old Apr 1, 2009 | 02:10 PM
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thank you thank you. it freaked us out at the shop too lol
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Old Apr 1, 2009 | 02:15 PM
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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.
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Old Apr 1, 2009 | 02:22 PM
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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
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Old Apr 2, 2009 | 10:18 AM
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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
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Old Apr 2, 2009 | 01:13 PM
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Originally Posted by Jason 98 TA
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
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Old Apr 4, 2009 | 03:01 AM
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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
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