Limit on stock heads
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Joined: Nov 2001
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From: Humble, Tx. USA!!!
Limit on stock heads
Ok I know that in general stock heads suck... But I wondering what the limit is on what they can flow... I'm talking about taking L05 or L98 heads & machining them as far as you can safely, How much power is possible given that everything else is up to par.
Thanks,
-Timbo-
Thanks,
-Timbo-
Supreme Member
Joined: Sep 2001
Posts: 6,111
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
search my posts for ported 305 heads the cast iron L98
heads have at least as much potential.
Based on the flow bench results my ported 305 heads
have a potential of 460 hp. All you have to do is bolt them onto
a 460hp motor...
I never got the chance to try 'em on a motor, but I'd say they were good for 400 streetable hp.
I have 2 more sets almost done. It's a lot of work.
heads have at least as much potential.
Based on the flow bench results my ported 305 heads
have a potential of 460 hp. All you have to do is bolt them onto
a 460hp motor...
I never got the chance to try 'em on a motor, but I'd say they were good for 400 streetable hp.
I have 2 more sets almost done. It's a lot of work.
Last edited by F-BIRD'88; Jun 20, 2002 at 01:57 AM.
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From: Neenah Wi.
Supreme Member
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Posts: 4,415
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From: Surrey, BC
Don't bother with L05 heads. Any engine actually that has TBI on top, don't even bother trying to work with the heads. You're wasting your time. Iron L98 heads can be made into excellent performers.
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