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Discussion Starter #1
I have a set of C8 289 heads. They have a full 3/8" pressed in stud, they are not bottle necked, they also appear to have a smaller hole for the pushrod. I am getting ready to order valves and rocker arms for these and wondering if they use a rail or non-rail rocker arm.
Thanks,
Chris
 

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Discussion Starter #3
Thanks Chris!!!! Well it seems that no one is making the conversion parts, pistons, head gaskets, etc. for the 351C heads on a 302. I couldn't even get in touch with the guy with the intake and adapters. So I was kind of bummed out. I had a great deal going on those heads too. Well I'm looking at cleaning up a set of C8 heads I have they have the smaller combustion chambers look real nice. We'll see I guess. I'l talk to you later.
Take Care,
Chris
 

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if the pushrod hole in head is a circle- rail rockers,if it looks like a slot- non rail rockers (use stock ratio rockers, or push rods will rub).if you have the slot stlye head you can run a solid lifter cam.
 

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Have been running 1.7 to one ratio (non-rail type) roller rockers with a small solid cam since '97. It was my daily driver for about two years after that and not a problem to this day. Could be O.K. since the cam is on the small side.
I agree with what was stated about the pushrod hole in the head being a slot shape.
 
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