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vortec head help

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Old 11-29-2009, 09:32 PM
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vortec head help

. heres what happened, two of my pushrods broke through the ends of the rockers, i believe i know what i did wrong, i cut the guides down and installed new seals, installed z28 springs but i left the dampers in, i didnt realize they sat on top of the lower boss which is about 1/4" high. i believe that caused them to bind. does this sound correct? any help would be greatly appreciated
Old 11-29-2009, 09:37 PM
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vortec head help

if i machined the guide bosses, but forgot to remove the Z28 spring dampers, which apparently sat on the 1/4" lip. could that have caused them to bind and crack two of my stock steel rockers? any help would be greatly appreciated
Old 12-02-2009, 08:20 PM
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Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: vortec head help

I would say yes, it will cause the spring bind. If you leave the dampers out will you still have enough seat pressure?
Old 12-03-2009, 01:47 AM
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Do it right and either cut the guides or install springs made for use over them like beehives.
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