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Hey guys I have a 88 5.0 and picked up a set of gt40 heads that I am porting and am looking at buying a set of harland sharp roller rockers used but they are 3.8 stud mount with guide plates. What is need to make these work? do the pedastals need to me milled? and are the bolts 7/16 or 3/8? if they need to me milled what should I expect to pay at a machine shop to do the work thanks
 

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Here's an idea, why not just buy the pedestal mount rockers and not have to spend more money on machine work. I'm running them on my AFR heads using Scorpion roller rockers and can tell you I rev my car alot to well over 6,000 RPM with zero problems in over two years.

Just a thought.

John
 
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