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GRX · 10-23-2017, 10:02 AM

3/4 of a pint = 12 ounces. Not good but have seen much worse.

When buying valve seals consider type. Factory style o-rings will do nothing if the stock sheet metal oil shields around the springs have been removed. Being a 383 good chance the heads have been reconditioned, or after markets installed. Hopefully they can accommodate positive valve seals that fit tightly on the guides and do not move up and down. Viton are best material here.
Umbrellas, which ride with the valve stem, and not as desirable as positive seals, are another distinct possibility. When going that route be sure their size allows them fit inside the springs without interference.
Hope that helps.

10-23-2017, 10:02 AM	#16
GRX Registered User Join Date: Jul 2010 Location: MD Posts: 1,937	Re: engine smoking 3/4 of a pint = 12 ounces. Not good but have seen much worse. When buying valve seals consider type. Factory style o-rings will do nothing if the stock sheet metal oil shields around the springs have been removed. Being a 383 good chance the heads have been reconditioned, or after markets installed. Hopefully they can accommodate positive valve seals that fit tightly on the guides and do not move up and down. Viton are best material here. Umbrellas, which ride with the valve stem, and not as desirable as positive seals, are another distinct possibility. When going that route be sure their size allows them fit inside the springs without interference. Hope that helps. __________________ 1969 c-10 Step Side Long Bed. I-6 250cid = = 1969 Pontiac GTO hard top. 400, 4-speed.