Rocker arm Question

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abodyblaze

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hello FABO Family!

In the process of gathering parts for a new 360 build. I am curious of how much lift can 237 adjustable rockers take?
 
237? I'm sure you meant 273? I'm gonna use them with a 540 or so lift. Should be getting it back from the machine shop soon .
 
i used them with a mopar 557 cam in the past. no problems. i switched to aluminum roller rockers and there was no gain in performance at the track. they are quite good. my advice: do not ajust them more often than is required, in order to keep the adjusters tight. a once a year lash should be enough in most cases.
 
j par said:
Was at the machine shop today and the heads are ready to go on, but there is still concerne about inside spring clearance View attachment 1714787080

View attachment 1714787081
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You can "massage" them a bit with a grinder, I think I took about .030 off mine and there was plenty of meat left. You will also want to check the pushrod angle and the amount of threads showing on the adjusters when you get the top end together. Most likely you could benefit form shimming the rocker shafts, every mopar la engine I have done needed it and it created a much better valve train geometry and a touch more rocker to spring clearance.
 
Also to the op I have ran them with a bunch as much as .550 measured at the valve and no issues. One down side is they give up some lift as most roller rockers are actually about 1.52 or so built into the rocker. Having mopar top end geometry no matter which rocker you use is a .030 or so loss of lift due to poor angles.
 
Abodybomber said:
"Inside spring clearance" , is vague. It makes me think valve spring problems. It looks like, rocker to guide problems. How about information, on your basic set up? No info, gets you zippo....
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I kinda feel like I'm high jacking the thread hear, but it was just a observation. New guides, new springs and retainers, but the shop will assemble and check I'm sure.
 
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