Author Topic: 383 valve clearance  (Read 5385 times)

Offline arcticmopar

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Re: 383 valve clearance
« Reply #15 on: August 05, 2008 - 11:14:32 AM »
UP DATE: I pulled the heads and found NO marks on any pistons or valves. But can someone tell me what is the correct way to do the clay test with hydrolic lifters? If used as they were running in the car I have between .057 and .085 clearance on the intake. I was told by a shop owner/mech that I had to disassemble the lifter and shim it so it was locked solid. This way the intake valves do touch all the pistons. And yes the cam was installed correctly just not degreed yet.
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Offline 71chally416

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Re: 383 valve clearance
« Reply #16 on: August 05, 2008 - 06:38:14 PM »
What I've done in the past is dissasemble a lifter and put a piece of rubber hose inside it to keep it from collapsing. Anything that will fit and hold the cup up will work. Don't forget to remove it when you're done!

You have to be careful with the 383's because they have long rods and a short stroke and the piston dwells near the top of the bore longer than many other engines.
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