Yeah, pedestals bolt down onto the head, sitting on a pedestal, hence the name. They're not adjustable, preload is set either with shims under the pedestal or with longer pushrods, depending on which way you need to go. And like Decurion said, 5/16 hardware, which is ok if you stay under around 6k rpm(higher and you get deflection) and don't have really high valve spring pressures(which can potentially break the smaller hardware)

 

You need pedestal mount arms. Look at the screw that goes through the rocker and into the head. If you had stud mount arms the stud would protrude up through the arm and have a locking nut on it.

And FWIW, the 4v heads with the right cam and an 850 cfm double pumper carb will blow-away most any after-market head that cost less than $2k. If you want to make them REALLY go have someone like Bob Glidden put exhaust port plates on the head. These are aluminum plates that are attached to the exhaust after you have the top part of said exhaust port machined away. The new part is then ported to raise the exhaust port to correct the factory defect Ford put in them to fit them into the spring-tower cars. The intake out flowed a 427 Chevy head and almost equalled a HEMI but the exhaust blocked the gas from leaving...every cid of gas not out is 1 cid reduced displacement! Remember the BOSS-351? The fastest stock carburated small block (fewer than 380 cid) ever built by a factory. 0-60 in something like 5.3 (as quick as my 95 Z/28) in a pig of a car. (3800+ lbs.?)

 

ok im getting mixed answers, do i or do i not have pedestal mount rockers?

cause my current rockers are just bolted directly onto the head on what looks like a pedestal, and i torqued it down

 

yes the cleve has pedestal mount didnt you put in a new cam and lifter a while back?

the pedestal has a square shape on the bottom hat fits in a groove to keep it from moving around (keep you from needinga set of guideplates)

 

rmodel to the rescue!

so i dont need a set of guideplates? or my head milled down?

 

am i gunna need longer or shorterpushrods to run these?

 

Pedestal mounts do not need guideplates, and milling heads can(though not neccesarily) lead to all sorts of problems, depending on how much is cut

 

i really dont want to cut anything off the head

 

Then don't

 

ah good idea

can i still use my stock sized pushrods or will i need longer ones?