(Login fatfordboss) Member from IP address 188.8.131.52
hello, does anyone know if crane or another manufactor still makes the cutting tool to cut down the rocker arm stud boss to make the valve train adjustable on cleveland or bbf. thanks for any help
ive found a part number for crane but there site doesnt list it
part number 99023-1
This message has been edited by fatfordboss from IP address 184.108.40.206 on Dec 5, 2008 9:43 PM
www.goodson.com pt# S-373P may be what you're looking for.
besides, rummaging around the website is fun.
I use crane pt# 99408-1 which is a kit to do all the machinework for converting to screw-in studs...that may REALLY be what you're looking for.
There's a picture of it on the page in the website, it has the drill bit, the tap and the drill driven cutter! Goodson.com
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Rocker Arm Stud Conversion Kit
Rocker Arm Stud Conversion Kit
Replace pressed-in rocker arm studs with threaded studs for positive retention. 4 simple steps: remove stud, face stud boss, then drill and tap the stud hole. Kit includes Stud Boss Facer (S-450-F), 3/8" Pilot (S-373), 3/8" Drill Bit (S-373D) and Tap (S-437T).
i believe the Crane kit for milling the rocker pedestals on cleveland heads is obsolete. the goodson tool mentioned in the other posts is not cleveland friendly (as there is no guide to maintain the compound angles of the cleveland pedestals ) and is designed for inline valve heads -- chevy / ford small blocks etc. find a very good machinist or someone with the proper Crane tool to do the job right.
Take it to a good shop and get it done. We have had heads here that have been home done with a hand drill and cutter ..... most aren't pretty. Some have had guide plates cut/welded etc to try and center the rocker on the stem, which works but does no favors for your geometry. It is a simple operation, you just need the right equipment to do it on and should not be too expensive to get it done right.
most dont know what it takes to get the job done,the posted Goodson link is for a 7/16 screw in stud. for inline heads with bolt downs rocker-- drill press needed at the mininium for the inline 5/16 bolt downs
It does take a very skilled person to do it with this kit. I forget that some of the forum members are new and young and don't have 35 years of engine building experience.
I have a Crane Cams Tool #99017-1 that I used on two different sets of iron heads. Both sets turned out fine with no issues lining up the rockers or with pushrod plates. It does require a powerful drill and a steady hand.
It took me about 6 hours on the first set of heads. None of the Automotive machine shops around here wanted to mess with them so I bought the Crane kit. All the other builds I used aluminum heads that were already for adjustable rockers.
thanks again guys, the machine shops around here mostly mess with uhmm i hate the word..chevies.. and very few have even seen a cleveland. im a tool and die maker, so im familiar with set ups etc. just cant do it where i work they dont allow govt jobs lol. anyways was a thought that i might could get the proper tooling and do it . ill keep checking around for a decent machinist.