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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Buddy on November 12, 2010, 12:18:10 pm

Title: COMPRESSION FOR 305
Post by: Buddy on November 12, 2010, 12:18:10 pm

What should the compression for a 305 be, non tbi

Title: Re: COMPRESSION FOR 305
Post by: Layne on November 12, 2010, 12:25:50 pm

Within 10% of each other. Maybe 135 psi. I've seen some at 190 psi per cyl

Title: Re: COMPRESSION FOR 305
Post by: tylermaster195 on December 01, 2010, 10:55:53 pm

I did my compression recently. It was 150psi a cylinder.