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06-09-2008, 04:25 PM
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I need help with my 351 windsor
I have a 1974, 351 windsor and the heads have pressed in studs with 5/15" fine threads. I need help finding roller rockers for this motor.The heads are early 70's the block casting #'s say the block is out of a 1974 galaxie 500.
Last edited by oldfordtrucker; 06-09-2008 at 05:33 PM. 
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06-09-2008, 07:20 PM
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Um 5/16, why not just replace the studs? Talk to your machinist if you're not sure. 3/8 is the least you could do for it. IMO
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06-09-2008, 08:19 PM
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Comp cams and Crane use to make a roller rail rocker for the sb Fords, I wouldn't waste my time on them. The reason why, is the rail rockers put side loads on the valves and wear the guides out. Rail rockers will also push down upon the retainer and pop the keeper loose if you put in a cam with too much lift. The last reason for not using rail rockers on post 68 heads is that the rockers are non adjustable. If you are serious about these heads, have a machine shop pull the pressed in studs and install screw in studs and guide plates. Then you can use a conventional roller rocker, but a set of hardened push rods will also be needed.
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