081's or 601's
07-28-2008, 11:34 AM
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Car: 1991 Z28
Engine: 350 TPI RAMJET COMING
Transmission: T56
081's or 601's
Have both............did a search are the 601's really that much better besides the smaller combustion chamber? I have both early and late intake manifolds so that's not a issue either.
07-28-2008, 09:26 PM
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Car: 92 trans am clone
Engine: LO3
Transmission: 700r4
Re: 081's or 601's
the 601s have a closed chamber combustion chamber which is suppossed to make more torque i think. i ported a set of 601s and was happy while they lasted(broke a rocker stud). but suppossedly theyre close in flow numbers so its really up to what you want to do. look in the ports on the heads yourself and decide seeing as how you have both.
07-28-2008, 11:03 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 081's or 601's
the 601s have a closed chamber combustion chamber which is suppossed to make more torque i think. i ported a set of 601s and was happy while they lasted(broke a rocker stud). but suppossedly theyre close in flow numbers so its really up to what you want to do. look in the ports on the heads yourself and decide seeing as how you have both.
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