valve stem seals

Posted by 56clipper On 2010/3/23 12:37:43

im in the process of overhauling my 1956 352 heads,and need to know if i should put umbrella seal on just the intake valve or can i put them on both valves.i have a 78 ford f250 with a 351 modified and it had seals on both valves.why didnt packard put them on both valves is the question?.the gasket set only comes with 8 seals for the intakes,is there a place i can get ones to fit the exhaust valves.i know this thing is old but i dont want it to smoke to bad.