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#2449139 - 02/09/18 01:25 PM 273 rockers
DusterKid Offline
super stock

Registered: 01/02/05
Posts: 704
Loc: Keymar, MD
To change the factory style 273 rocker arms to a adjusting screw and lock nut, what if anything needs to be done to the rocker arm?

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#2449148 - 02/09/18 01:41 PM Re: 273 rockers [Re: DusterKid]
poboyengineering Offline
mopar

Registered: 01/07/07
Posts: 591
Loc: pennsylvania
Just spot face the area where the nut will rest.
_________________________
It may be ugly, but it sure is slow.

Girls comb their hair in rear view mirrors and the boys try to look so hard....

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#2449704 - 02/10/18 04:36 PM Re: 273 rockers [Re: DusterKid]
DusterKid Offline
super stock

Registered: 01/02/05
Posts: 704
Loc: Keymar, MD
I'm assuming the spot face is to help the nut sit flush? Does it have to be done on a lathe or could a sanding belt be good enough?

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#2449727 - 02/10/18 05:15 PM Re: 273 rockers [Re: DusterKid]
poboyengineering Offline
mopar

Registered: 01/07/07
Posts: 591
Loc: pennsylvania
I did mine on a mill. I suppose you could do it on a drill press with a center cutting end mill. And yes, it's to give the nut a flat to tighten against.
_________________________
It may be ugly, but it sure is slow.

Girls comb their hair in rear view mirrors and the boys try to look so hard....

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#2449731 - 02/10/18 05:17 PM Re: 273 rockers [Re: DusterKid]
jwb123 Offline
member

Registered: 11/17/15
Posts: 130
Loc: Missouri
Where do you buy the replacement adjusters? I got a set of those rockers in my junk.

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#2449739 - 02/10/18 05:37 PM Re: 273 rockers [Re: DusterKid]
poboyengineering Offline
mopar

Registered: 01/07/07
Posts: 591
Loc: pennsylvania
Isky sells them, among others.
_________________________
It may be ugly, but it sure is slow.

Girls comb their hair in rear view mirrors and the boys try to look so hard....

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#2450498 - 02/11/18 11:40 PM Re: 273 rockers [Re: DusterKid]
cdp Offline
master

Registered: 01/31/03
Posts: 3393
Loc: MO
https://www.pushrods.net

The factory adjusters are a tapered thread. All you have to do is chase them with a good 5/16-18 or 3/8-24 tap (can't remember which) to finish them out.

I've done 1 set already, but haven't spot faced them yet.

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#2451733 - 02/14/18 02:37 PM Re: 273 rockers [Re: DusterKid]
therocks Offline
I Live Here

Registered: 01/20/03
Posts: 18970
Loc: Niles , Ohio
My old Sig Ersons were interference fit.They finally started backing off after 30 plus years.Bought MP adjusters and they fit perfect.Still running them and adjust maybe once every 2 years.Rocky
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Chrysler Firepower

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