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#1 |
Registered Member
Join Date: Oct 1998
Location: Suburban Chicago, Hanover Park
Posts: 695
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![]() I have a 91 LX with stock heads, valve covers have never been off, and I want to throw on some rockers I've had around for a while. I have Comp Cams 1.6 roller rockers, studs, guide plates and pushrods out of a set of 351 heads. Is this an easy swap, ie unbolting the old rockers and tightening down the new or are there some devils in the details? Anyway, heres a couple questions about the rockers:
1. Are the stock rockers pedestal mount or stud mount, if they are stud mount are they pressed in or threaded? 2. Exactly what do I need for the install, parts wise, besides the rockers and the studs? Any help is greatly appreciated guys. Thanks in advance. ------------------ 91 LX 5.0 Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come! |
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#2 |
Registered Member
Join Date: Jan 2001
Location: Minnesota
Posts: 177
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![]() Hey-
I assume that your rockers are like mine...being stud mounted. If they are, than it isn't an easy swap since the stock heads don't have studs. They are just pedestal mounted rockers. I think I have seen a kit for the stock heads though. |
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#3 |
Registered Member
Join Date: Oct 1998
Location: Suburban Chicago, Hanover Park
Posts: 695
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![]() That's what I was afraid of, any idea where you saw that kit? Is there a way to use the studs, or would I have to drill and tap holes? I've had a bunch of guys tell me this was a simple swap, but none of them had ever done it on a Mustang.
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#4 |
Registered Member
Join Date: Oct 1998
Location: Suburban Chicago, Hanover Park
Posts: 695
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![]() Let me try this again. Anyone have any answers for me?
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#5 |
Registered Member
Join Date: Mar 2001
Location: burlington,ma USA
Posts: 2
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![]() I had stud mounted roller rockers on my factory heads(crane rollers).There is no need to drill or tap.All you do is put the guide plates on,screw the studs in and slip the rockers on and adjust the nuts.I used the Crane conversion kit, you should be able to use what you have.351 and 302 heads are basically the exact same thing.As far as adjusting, Stock rockers are pedestal mount ,yours are I assume adjustable.This is where it gets tedious.You have to be sure when tightening the rockers you have ero lash.Be sure the lifter is on a flat spot of the cam and not the ramp.Do one cylinder at a time,adjusting and rotating.When you have ero lash, give the nut an extra turn and lock it. There's my "how-to".
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#6 |
Registered Member
Join Date: Mar 2001
Location: burlington,ma USA
Posts: 2
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![]() by the way , ero = ZERO , my Z key is busted hehe.
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