429 D0oe pedestal milling question

I have a quick question.
I have a set of D0oe heads that I am going to run roller rockers on. am I correct in that the pedestal need to be milled 0.300" to accept the studs and guide plates and to get the rocker geometry correct?

thank you

ChrisH wrote:I have a quick question.
I have a set of D0oe heads that I am going to run roller rockers on. am I correct in that the pedestal need to be milled 0.300" to accept the studs and guide plates and to get the rocker geometry correct?

thank you

Ford MotorSport says .230" for 1968 to 1972 and .300" for 1973 to 1986. There are two kinds of 1972 Heads D2VE and D2OE PI's that are not the same though.

Since yours are Pedestal it would be the Latter. I have heard of people cutting them less and it worked, can't remember the exact number though.

well, i think i screwed up the description a little.
These are stud mount already since they are D0OE (not the pedestal i eluded to)
but they are still factory height where the stud screws into.

i thought i remembered finding a publication that stated 0.300" (or 0.230") but have yet to find it.

Those numbers are for standard production heads which came without guideplates ... some D0OE heads came already equipped with guideplates and a fully adjustable valve train.

If the pedestals are not at the correct height with guideplates, the rocker arm tips will be to wide for that cylinder.

thank you for the reply's.
I found my book with this information in it and a milling diagram.
it looks like if you can lay a straight edge from valve cover rail to valve cover rail and just catch one corner of your stud boss then you are the correct height.

the pedestal mounts will be ~0.3" above the bottom of the straight edge if they need milled

whoa there, DO0E DONT NEED MILLED D0OE-R is a cj/scj head that is already has the correct height stand

I'm glad you said something Rich as I was reading this I'm like you don't have to mill anything sometime people get you second guessing yourself I had Jon Kaase shop do my iron SCJ heads and I bought some 3/8" pushrods and Cliff kept trying to sell me different length pushrods int/exh I kept telling him no I want all the same length then he had me guessing myself I've have this motor 30 years and alway ran same length pushrods he looked at me like I was crazy and I left with all the same length rods and it works fine

ChrisH wrote:thank you for the reply's.
I found my book with this information in it and a milling diagram.
it looks like if you can lay a straight edge from valve cover rail to valve cover rail and just catch one corner of your stud boss then you are the correct height.

the pedestal mounts will be ~0.3" above the bottom of the straight edge if they need milled

It was late and I totally read past the DOoe. You should be good to go like they are.

Maybe Im wrong, but I thought a D0OE was a 1970 351W head, no??

Her's a picture DOOE-R

http://www.racingjunk.com/Heads/182729396/bbf-429cj-pi-heads-and-parts.html

I'm not saying it's right, but I've run guide plates on non-guide plate heads without milling with no issues.

If guide plates are added to C8/C9/DOVE heads they should be milled. Otherwise, the rocker can contact the stud hex with many styles of rocker arms.

Lem Evans wrote:If guide plates are added to C8/C9/DOVE heads they should be milled. Otherwise, the rocker can contact the stud hex with many styles of rocker arms.

I needed adjustable valve train so all I did was replace the factory rockers with Boss 351 rockers and fulcrums, used some (I think) BB Chev screw in studs, Motorsports 5/16 guide plates, Isky stock length push rods, stock valves, Isky retainers and springs, etc. Never machined a thing. This was back in the 80's when I put a '70 429 in my '69 Mach1. Had an Isky SFT cam. I still have the valve train. I wish I knew then what I know now.

Roller rockers with BIG trunnions are the ones to watch. It also matters how thick the mfr. made the hex on the stud.

i appreciate the information
i found why i got confused, all i had sitting around my garage was D0VE and D0OE heads.
if i had a set of D3 heads i would have seen the obvious difference and why milling was required.

thanks