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Author Topic:   5.7" or 6" rod for 383 stroker ?
yakesservice
Member
posted January 30, 2003 09:35 PM
Heavier car, short track......5.7 for sure
Yea I know Smokey said fit the longest rod possible into every motor.....Ive tried both, I'll stick with the 5.7


outlawstock17
Member
posted January 30, 2003 11:21 PM
i've mentioned this before.....david vizard conducted a rod length comparison dyno test that was in speedway illustrated a few months ago. there is NO benefit to the shorter rod. the 6" rod outperformed the 5.7" rod at every rpm, including low rpms. you can't physically fit a long enough rod in a small block chevrolet to get to the ideal rod/stroke ratio, but the longer, the better.

let me re-phrase that.....a 283 or a 302 chevy and you can get mighty close to ideal.

[This message has been edited by outlawstock17 (edited January 30, 2003).]

Slam_Shifter
Member
posted February 01, 2003 10:23 PM
Provided the cam heads etc are well matched I would prefer the 6 inch rod. It flattens out the torque and hp curve. Like i said before that is provided the gears and the rest of the motor are working togather.

Slam_Shifter

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