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Never head of mushroom tappet either! And yes, I learned that I have the wrong offset rockers! I got the rockers for stage 6, but not stage 6 "max wedge". So I goofed up. Now I need 8 of the correct offset intake rockers. 4 RH and 4 LH. Or scrap these damn heads and bolt on some 915s...

anybody here running these heads? If so did you have to clearence for 3/8 pushrods? I have a set of correct length rods but the 3/8 dia is rubbing on the bottom of the pushrod "tunnel" just on the intakes. Didn't know how much I could clearence before ruining heads. Even though they're junk...

wheres the best company to buy custom length pushrods? I need 11/32 ball/cup 9.33 long

Yes it has that hole. I ended up finding an old set of pushrods the right length, but now I need 5/16 diameter. The 3/8 are rubbing my heads.

Ok thanks. They are crane roller rockers offset for max wedge heads. There is no hole in the adjuster for oil.

Crane cams 1.5 Rockers. Not sure about spring pressure, I bought comp cam kit from summit 525/294

ok, so I'm rebuilding my 440 and decided to go with a solid flat tappet opposed to the hydraulic since I had to many lifter issues. I have a set of 9.250 pushrods from a previous project and figured I would see how one fits. At .22 lash I have about 2 threads showing on the bottom of the...

very true. Don't know if I can get used to the chattering either...

I had a lunati voodoo cam 513 in it few years back, wiped a lobe off the cam. Probably my fault, but wanna steer away from lunati

Running two Holley 500s also.

Thanks guys. I have a 509 purple shaft in it now. I busted the side out of a lifter (hydraulic) and tearing the motor down this winter. Figured I'd change cam too. I want something street able with a night choppy idle. My dad uses comp 520/230 in his big block chevies and love them. Motor is a...

Ok thanks. Was also looking at the comp cam 525/305 mech flat tappet

anybody here running the 590 purple shaft on the street? Thinking about putting one in my 440. Gonna be street driven only.

I would fab up a set your self. I put a 440 in my 56 chevy gasser. My dad and I fabbed a set from scatch and worked pretty good. Ill try to get some pics.

The a-body bell has special boses on the side to bolt a bracket with a ball for the z bar.