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Contact restoration station (www.restoration-station.com), they have created short nuts that you can use on your roller rockers. I also think Comp Cams has a short nut , PN 4600-16 that works as well. No thick gasket, no tall valve covers.
I'm using them too. I have Harland Sharp roller rockers. The drippers need to be ground off and the poly lock nuts were shaved down slightly to fit with stock gaskets. My heads aren't factory though...they are SR Torquers.
Thanks for all the help I am going to change them this week end With 1.6 ratio
Ohhh, that's another matter. On most stock heads, you will also have to elongate the areas that the pushrods pass through or they will rub. There's a tool specifically designed that holds a bit to grind out that area for for this. But you would probably want to remove the heads to keep from getting metal garbage in the engine. (Could probably be done on the engine if really careful.) Either way, you would need to remove the intake manifold to ensure that you don't get shavings in the lifter valley. And while you have the manifold off, you may as well have "trash screens" epoxied in the valley. (I did as cheap insurance.)
1.5:1 and 1.52:1 rockers do not create this interference.
Last edited by toddalin; Nov 21, 2008 at 01:19 PM.