Olds 350

General engine tech -- Drag Racing to Circle Track

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rocketracer380
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Olds 350

Post by rocketracer380 »

Is .027 too tight for piston to head clearence with a steel rod?
gmrocket
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Re: Olds 350

Post by gmrocket »

I’ve gone as close as .031”/032” with very loose rod and pin clearances with factory rods....7k max

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Walter R. Malik
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Re: Olds 350

Post by Walter R. Malik »

rocketracer380 wrote: Tue Aug 18, 2020 6:38 pm Is .027 too tight for piston to head clearence with a steel rod?
IF you have cast pistons having about .0015" skirt clearance it will probably clear.
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