I just changed the heads on my 67 full size wagon from the original #143 to a set of 1974 #46 heads. (see
http://forums.maxperformanceinc.com/...d.php?t=633800). As part of the swap, I changed to the later style, longer pushrods. I got the car all back together and torqued the rocker nuts down, and i have slop in the valve train. I can move the pushrods up and down. The engine runs, but (obviously) has severe valvetrain clatter. I got these heads as part of a package deal, and they were freshly rebuilt. They are stock (not milled), the engine is stock, everything is stock. The only answer I can come up with for the pushrods seeming too short is that whoever built the heads put valves that were too short in them. I have a 73 service manual, and I can't find any information on installed height. Can anyone provide a measurement I can make with the heads on the car? I guess my only option (other than paying to have the heads re-re-built...) is aftermarket rocker studs and making the valvetrain adjustable....
Any suggestions?
Thanks,
Importsmasher