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Old 05-18-2023, 04:58 PM   #15
weq92f
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Join Date: Oct 2016
Location: Dallas Texas
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Re: Oil pan gasket replacement for 1972 GMC 402 engine

Quote:
Originally Posted by 72SB View Post
IMHO NEVER jack a motor up from balancer. I have personally seen one crack doing that. Use a carpet padded block of wood and floor jack under pan and jack up so you can then put 2x4 blocks between engine stands and block to hold it up

Agree on the 1 piece FelPro gasket. It comes with 4 plastic studs you use to hold gasket to block on the 4 corners. Then just slide pan over those studs, screw in side pan bolts them remove plastic ones and install the 4 corners. I use Permatex Black Ultra RTV. Better suited for high temp oil sealing vs other flavors
.

Must be something new 'cause a few years ago when I did mine ( 396, one-piece fel-pro ), I didn't get the plastic studs. I improvised by attaching the gasket to the pan with very small gauge wire, got a few bolts in to snug the pan to the block and removed the wire. In my case I had a hoist to raise the engine and place the 2x4 blocks under the mounts. No leaks from the pan since.

-klb
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