Heads are going to the machine shop ASAP. They came off today. What are good valve springs? I'm gonna be running YT rollers on 93 heads. Should I reuse my pushrods, or get new ones? Is there a good way to test for bent ones, other than rolling them? How about new valves?

I'd go with new valves. You could put the pushrods on a lathe and spin'em up. I'd go with Comp Cams springs.

What springs? Got a number?

Depends on what you're doing for cam and rockers. Stock is 100#. With stock rockers and cam, but a Jet chip like I have with the increased redline, 105 or 110 pound would help prevent valve float at the higher rpms. Maybe 105'* without the jet? Regardless, anything new will be better than tired old springs.

Why not get some lightweight generic pushrods out of say summit?

What are the specs I should know to do that?

yeah, if you find out the length, zzp has a few different lengths around 7.05".
I'm kinda thinking the series 1 pushrods might be longer though because of the taller deck height?

Yes. They're like 8-9".

Yeah, Straitor'* figures sound better. I never actually got to measuring mine, but I know they were significantly longer than my micrometer could measure [6.5"]. For sure longer than 7"


-justin

Is length the only thing I need to worry about? How about oil passage?