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Old 03-10-2004, 05:15 PM
laughin462 laughin462 is offline
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pontiac 455 high oil pressure

Fresh rebuild on a 70 model 455 / 462 in a 65 lemans. seems to have very high oil pressure 30-40lbs idle 70lbs down the road 65m.p.h. engine shows no sign of compression blow by. but blows oil dip stick out of the tube an inch or 2. Recently began leaking oil out rear seal during heavy acceleration. Help!! anyone heard of this and does this engine have an oil pressure regulator system, Thanks
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