The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Engine is tapping bad, but not all the time, how do i adjust valves?

Frank_Zeller · 10-24-2002, 08:45 AM

The stock Pontiac rocker arm set up is non adjustable. Just torque the nuts to around 25 foot pounds. You can convert to chevy bb studs and polylocks if you have screw in studs to make the valve train adjustable. Also try running plus one quart of oil to see if the problem goes away. I do this on my 455 to insure I have enough oil at high rpm. No ill effects.

I would be interested in you frame to motor mounts if you ever deside to go back to a Chevy motor.

10-24-2002, 08:45 AM	#7
Frank_Zeller Registered User Join Date: Jun 2001 Location: Austin, Texas Posts: 796	The stock Pontiac rocker arm set up is non adjustable. Just torque the nuts to around 25 foot pounds. You can convert to chevy bb studs and polylocks if you have screw in studs to make the valve train adjustable. Also try running plus one quart of oil to see if the problem goes away. I do this on my 455 to insure I have enough oil at high rpm. No ill effects. I would be interested in you frame to motor mounts if you ever deside to go back to a Chevy motor. __________________ 69 SWB C/10 5-6 drop 700R4 69 Firebird Convert 455 4 spd 70 Torino GT Convert Austin-Texas Last edited by Frank_Zeller; 10-24-2002 at 08:47 AM.