FORD FE ROCKERS ON A 250?

I would think for mimimal machining you coudl get any shaft mount rocker to work. I can't see it being to hard to machine some new pedestals up
 
It surely is not the pedestal that is critical.

To determine whether FE rockers are an option for the 144-250ci valvetrain, one had to compare both rockers, side by side, and measure everything. Aynthing else is just guesswork.

Why would you want FE rockers, anyway?
 
From what I understand they have a greater ratio than the stock peices, and should be less expensive than others available. In other words some cheap HP. Any one else try this?
 
You could probably juggle valve stem lengths and pushrod lengths a bit.

Aside from needing full contact at both extremes of travel, you want the thrust "squarest" on these two parts at the point of maximum valvetrain acceleration. That's the greatest stress on them - not maximum lift.

Worst case, draw up some overscale images and eyeball it.
 
:D Yep.However,in the Ford family of blocks,I THINK that it might be considered a medium sized block.BB and SB were Chebby terms that just got thrown around willie/nilly,from what I have been learening here.If I`m wrong about block family on 427,SOMEONE chime in here and PLEASE correct me.Thanks.
Leo
 
Those FE rockers are supposed to be 1.72 or 1.75. If they fit it would be a great upgrade for a stock cam! :hmmm:

Edit: 1.76 perhaps!
 
A little clarification... 332, 352, 360, 390, 406, 427, 428 and the truck counterparts are considered FE. Stock hydraulic rockers are 1.7 and the solids (adjustable) are 1.73...'course I'm at work and can't look up the exact figures so if I'm wrong about the exact ratios... blame it on "geezeritis" :) But the solids do have a higher ratio!!
 
I figure if it was that easy, then everybody would be doing it. It stands to reason that Stroppe & associates would have used them in the 60's when he built those wild sixes since the parts were widely available. He did a lot of custom work then, even milling off the intake, so that would be a relatively minor procedure. IMO.
 
The FE engine was created in 1958 and lasted until 1976, it was a Big Block, (332 cubes all the way to 428 cubes) but not as big as the Mercury Edsel Lincoln (MEL) Engines also beginning in 1958, (383-462 cubes) they were much heavier and a little wider.



FE
 
Geezer 300":imiq7qng said:
A little clarification... 332, 352, 360, 390, 406, 427, 428 and the truck counterparts are considered FE.
Ye forgitted the 410.

So does anybody have any way to measure the buggers? Shaft diameter, distance from rocker tip and to push rod cup? Any differences between the early solid liftered motors and the later hydraulic versions in regards to the rockers?

-ron
 
Waall, I almost put in the 410!! The difference between the rockers is the ratio, with the solid lifter one being higher, and the solids are adjustable. They do interchange. Did that with my 428. I would assume the FE used thicker shafts than the sixes. Possibly the oiling system could be different.
 
I would try it out but none to be had around here in the yards.

as basic as the pedistals are I would think one could make up some new ones pretty easy.

don't forget in the 1960's no one really ran a high ratio rocker...they just relied on more lift at the cam.

also the six rockers are offset and didn't know if they were on the FE also? that right there would be the only hair in the ointment I can see. if they use a bigger shaft you can just bush up the rockers to fit the six shaft. if a different tip length then just mill out a new ped (would only take a length of 1.5"x1.5"solid AL stock and an afternoon on a mill)
 
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