Speedmaster Poly Sure Lock Rocker Arm Nut Set 3/8 in.
746-PCE255.1006
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3/8
Procomp Electronics rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms. Made from heat-treated, premium-grade 4140 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. Precision CNC-machined threads to ensure optimum seat pressure, flush-machined set screws for proper contact on the studs, and, best of all, they don't require any special tools for installation. They're available in various sizes to suit your needs.
Specifications:
Part Type
Product Line
For Use with Stud Girdle
Yes
Package Depth
2.00
Package Height
6.50
Package Width
3.00
Part Category
Performance Parts
Part Fitment
Semi Universal
Quantity
16
Rocker Stud Thread Diameter (in.)
3/8-24
Shipping Weight
2.37
Stud Size
3/8 in.
Vendor Part Number
PCE255.1006
746-PCE255.1006 is rated
out of
5 by
2.
Rated 1 out of
5
by
old navy from
not recommended
I espressed doubt when I purchased these as A set of low cost I had in the past were not concentric and these turned out to have the same problem. I placed them on a set of ARP rocker studs then chucked the studs in a drill press to check their run out with a dial indicator had results from ,012 up to .076 this would mean when the stud girdle is tightened down the studs would have to bend that much. When the nuts are on the studs and run down with the set screw still loose they can be .rocked back and forth a small amount. I feel this is unacceptable. Sorry I can't recommend these. I guess its true you get what you pay for. (this is a simple check that i feel JEGS should do before sending these out to customers)
Date published: 2021-03-16