12-13-2006, 11:09 AM
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| Senior Member
Join Date: Sep 2004 Location: Charles County, Maryland
Posts: 1,854
Car: 89 TA, 79Z28, 88K1500 TPI swapped Engine: 350 HSR, 350TPI Transmission: 700R4 w/ Raptor 5X 9.5" converter Axle/Gears: 3.73 8.5" ring 10 bolt | LT1 vs Gen I exhaust port mismatch?
| Hi guys, I'd like to use LT1 exhaust manifolds on Gen 1 style heads. I'm sick of header leaks and am going to use LT1 manifolds if I can. I know the LT1 has a D shaped exhaust port. But, especailly with a manifold, it looks like there should be enough meat that the D port exh. manifold will still seal on the square port head. Has anyone checked this before? | | |
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1989 Trans Am, 1979 Z28 w/ Holley Stealth ram and MAF '165 ECM, 1988 Chevy K1500 w/ L98 and TPI swap, 2003 Mercury Marauder, 2004 Taurus SEL |
 
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