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Tubular Push Rods

Posted By paul2748 8 Years Ago
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paul2748
Posted 8 Years Ago
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Thanks for posting this.  I just bought a set from Shuman's so I decided to check mine out. SAME THING.  No I've got to find someone else.  Contact info for Smith Brothers?  I had some stock push rods and checked the cups on those using the same method and they were ok.

57RancheroJim (11/14/2017)
This afternoon I colored the cup with a Sharpie and spun an adjuster in it. You can clearly see that the ball only hits on the top edge of the cup and doesn't come close to the bottom. Elgin claims their prints say the cup is .370 but I can tell you the parts aren't..
http://forums.y-blocksforever.com/uploads/images/e8887420-a09e-4197-ba68-a4d2.jpg




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charliemccraney
Posted 8 Years Ago
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Smith Brothers:  https://www.pushrods.net/

Looks like they are $8.20ea in their catalog, so $131.20 + shipping if I'm looking at the right item.  Just email or call and tell them what you need.  They're helpful.





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paul2748
Posted 8 Years Ago
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Thanks Charlie


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57RancheroJim
Posted 8 Years Ago
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Sorry to hear you had a similar problem. Maybe Shuman gets them from Elgin?
paul2748
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I called Smith Bros today.  They have no clue what the "normal" push rods for a Y Block are supposed to be (no specs) so they have nothing to sell me unless I send them my stock ones and have them duplicate it in a tubular style.  I fail to see how a company that specializes in push rods doesn't know what places like Elgin and Melling know.  So, now what to do?


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charliemccraney
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Send them one or specify the effective length.


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Tedster
Posted 8 Years Ago
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Noticed from the pics the #73 pushrods have the large ball on the lifter end, similar to stock. #71 don't have this.
57RancheroJim
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Tedster (11/17/2017)
Noticed from the pics the #73 pushrods have the large ball on the lifter end, similar to stock. #71 don't have this.
Ted, I'm a little confused, I don't see anything with a #71 or 73. All my OEM pushrods have the small ball. Are you saying yours has the larger ball? Can you post a picture of yours?

Tedster
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No, the PR-71S pushrods don't have a ball end, it's basically the same diameter as the rod itself, will try to post a pic later, need to double check lash anyway. That's what's kind of puzzling. PR-71S is listed for 54-56 Y Block V8 on eBay, those are what I purchased, as my thinking went Mummert's site lists "long" pushrods as correct except for '57 or somesuch. PR-73S are listed by Elgin as 56-64. Their pictures on the auction site are just stock pics so aren't really helpful. If I can find my sharpy we'll do the cup test too, but they sure seemed to fit fine, if a little low. I'd like to see a deeper cup just because that's what I'm used to.
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Here is PR-71S showing lifter end. The sharpie test seems to show a decent contact patch, the OEM rocker screw has a flat spot at the bottom, so it won't be 100%


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