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Author Topic:   Exhaust manifolds
Dirt Freak

Total posts: 323
posted June 10, 2003 10:46 AM  
Looking for best/better exhaust manifolds. I put headers on and my motor came alive, but can't run headers or center dumps. The mans I have must be the smallest ever made. They need to be a stock item untouched. Hope someone can point me in the right direction. Thanks, Race

Dirt Forum Champ
Total posts: 1019
posted June 10, 2003 12:01 PM  
I have a pair of rear dumps off an 87 pickup. Very nice flowing manifolds. They will only need studs for the outlets installed and to have the O2 sensor hole plugged but otherwise are fine.
Make me an offer and they're yours, I have no use for 'em.


Dirt Freak

Total posts: 354
posted June 10, 2003 02:02 PM  
1996 and up Vortec 350 truck exhaust manifolds are supposed to flow well. The vortec manifolds are '96 to '98 P/U, Tahoe,Sub.

Dirt Forum Racer

Total posts: 99
posted June 10, 2003 11:12 PM  
the truck manifolds with the rear dump on the left side wouldn't work on my metric car without serious firewall modifications. ones out of a TBI van will work though. The better manifolds take a 2 1/4" flange instead of the 2".

Dirt Forum Champ
Total posts: 5390
posted June 11, 2003 12:03 AM  
I use the vortec manifolds on old heads. The frame clearance on the left is close you may have to "alter" the edge of the frame at the flange.

Dirt Freak

Total posts: 217
posted June 11, 2003 10:00 AM  
I agree with 15a. I swithced to these babies this season and I can tell the difference. They really help the motor breath. Yes, they do work on old heads, as I'm running
sbc 041x heads.

Dirt Roller

Total posts: 19
posted June 12, 2003 12:58 AM  
We are running 305 manifolds off of a iroc. No problems with clearance at all. Hope that helps.

Dirt Freak

Total posts: 374
posted June 12, 2003 06:41 AM  
Dell, Those look just like mine 97 350 vortec PU.

Dirt Freak

Total posts: 323
posted June 17, 2003 01:39 PM  
Thanks! Picked up some vortecs off Ebay. $23.00 plus shpiing! Race

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