Hardened push rods...

[Freshmeat]

I think I need hardened push rods for the beehive springs. Does anyone know the stock length so I can order the right ones?

[88grandmarq]

I ran stock push rods in the 306 I built for my 88GM. it had beehive springs from crane as well as a .530" lift cam. stock pushrods and lifters worked fine, even during the 5,500 RPM pulls on the chassis dyno.

[turbo2256b]

Should only need them if you have push rod guide plates. If your spring pressures are high enough that you need them bolt down rockers would break anyway.

[Freshmeat]

Thanks for the opinions, guys. I didn't think I needed them, but a builder told me I would. He kept bringing up RRs, though, so no matter what I said I'm pretty sure he was stuck on the idea I'm running rollers, which would make a difference. I guess.

I'll do the spring swap ASAP and post up some pictures... then I'll be able to put it on a dyno, too!! Woot!

Hey, 88grandmarq- how did you get yours on? I hear normal spring compressors won't fit 'em.

[turbo2256b]

Hyd rolleres wont rev as high as flat tappets. The roller lifters are heavyer

[DuceAnAHalf]

If you use pedestal mount roller rockers you dont need guide plates. if you use stud mount roller rockers then you will need guide plates and hardened pushrods.