Stock Rocker Arms with Bugpack HD springs ?

[rockerarm]

I am finishing up a "very budget minded" long block. 1600 with stock cam/lifters reground by Web Cams. Couple upgrades are the Bugpack single springs, Scat courier style swivel adjusters, and have removed the spring washers on the rocker arms and shimed to .004-.010". MUST I use bolt together shafts or will I be reliable or be doomed? Running out of cash on this project so curious to see if anyone uses a similar combination or ideas on securing those clips. Would like to retain these rockerarms as I have hand grooved the shafts with a .010" wide, .010" deep groove (Hoover mod) and hand grooved the lifters between the rings. Being installed in a '71 Bus. Thanks in advance, Bill

[74 Thing]

A guy over on the cal-look.com forum who is a autocross racer in Australia does the same as you-gets rid of the wavy washers and shims the side play using stock rockers. His engine sees 8k rpm and he has not had a problem. I think you should be ok with your set up.

[RIS]

Low buck trick: safety wire the open ends of the clip together so it can't slip off the shaft. Doesn't help if the clip breaks, but better than nothing...
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[rockerarm]

I think that guy in Austrailia is Greg Ward. Quite impressive to be turning those revs. I thought of safety wiring the clips but with the side play reduced to less than .010", the washer that touches has to large an OD. The area on the clip that the safety wire will be is right up against the shim and will reduce the side clearance. My son was looking at it and said "why don't we reverse the clips so as the opening is facing the valve cover?" So we installed a rocker arm onto the head w/out the pushrods and pushed on the clip and it will bottom on the head without completely falling out of the groove. I wonder when these clips come out, do they fall out laterally or fall out in direction they are pushed in? Hmmmm.

[74 Thing]

Yes, it is Greg Ward-you may want to contact him. He is very helpful and willing to share his knowledge.

I am not sure this can be done to a shaft without machining, but ACE offers their shafts with snap rings on the ends like the old Sig Erson (page down to see them on this link):
http://www.aircooledengineering.com/products.htm

[RockCrusher]

Good suggestions above. My only concern would be the occasional breaking of the stock rocker arms that I've heard about but never seen personally.

RC
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[jbbugs]