In an article in issue #119 of YBM by John Mummert, in a competition engine build, he refers to new tool steel valve lifters by Trend Performance. However, he notes that the pushrod cup on them is 5/16" diameter, not Y-Blk std 3/8". No further particulars are given. So, presumably custom pushrods are required to fit them, but then what about the 3/8" ball at the rocker arm end? Are these lifters going to be marketed as replacements? If so, it doesn't seem like a very viable situation. A person could write to YBM, and possiby get an answer, but it would be months away. Anyone here know any particulars?

Paul

Paul:

I hope JM checks in on this and lets us know. I'm wondering, is the pushrod pocket actually 5/16 (.3125"), or is it actually .315" (8 mm) because that's the size of the ball mill that formed the pocket. Depending where they were machined, metric tooling may be what the company that makes them has. If the pocket is CNC machined, then tooling size is not an issue.

John - "The Hoosier Hurricane"

Trend Performance is in Michigan, I ordered custom pushrods with 5/16 ball and 3/8 cup. There is probably no reason to use these lifters unless you are building a pretty serious engine so you would probably want chromoly pushrods anyway.We inspected the lifters after the season and everything looks great.
Heres a picture of the first outing this year. 6.28 @ 106mph 1/8th mile. photo by Denny Sniff


http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Cool shot! Wheels up!

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

I can second John's comments on the lifters. I have tested 3 cams with the same set, No wear whatsoever. They are finished to a very high quality standard

I think John has what he calls "a pretty serious engine".

Mark

1956 Mercury M100
1955 Ford Fairlane Club Sedan
Delta, British Columbia