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Discussion Starter · #1 ·
Does anyone know a manufacturer and part number? I would like to eliminate the rotators and use normal retainers on the exhaust springs. I don't wanna pull heads again for any machining. The heads have the spring seat for exhaust valve springs cut apx 3/16" deeper to accomodate for the thicker exhaust rotators and keep installed height correct. I would need either a taller spring with same 1.260 OD in the 105-115lb range or a spring seat cup that won't require machining or a .1875 shim or a special retainer.
 

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Discussion Starter · #3 ·
I've got a new Comp catolog.

I shows nothing and I have talked with their techs and they don't have anything that won't require further head machining.
 
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