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Proform 66906C Stamped Roller-Tip Rocker Arm, 1.5 Ratio, 3/8' Stud

5.0 (9) Write Review
Free shipping on orders over $29.99

$109.01

$ 53 .99 $53.99

In Stock
  • Designed for select Chevrolet Small Block Engines
  • 1.5 Ratio for 3/8" studs
  • Extra long slot eliminates rocker to stud interference.
  • Reduces internal valve train friction
  • 16 rockers, anti-gall grooved balls and nuts per package


Proform stamped roller-tip rocker arm has a 1.5 ratio 3/8" stud and fits select Chevy small block engines. Reduces internal valve train friction and valve stem wear. Extra long slot eliminates rocker to stud interference. 16 rockers, anti-gall grooved balls and nuts per package. Clamshell packaging.


Jim
Reviewed in the United States on February 4, 2025
I didnt have much to say but they work as far as i know my son didnt complain
Dave T. Williams
Reviewed in the United States on March 23, 2024
These rockers lasted me less than two years in a car that is only driven in the summer months. Three of the 16 rockers failed, two cracked in half and one allowed a pushrod to push through it. Most likely cause was my fast ramping camshaft and matching valve springs, assuming too much pressure for these rocker arms to handle. Fortunately, their failure did not cause any other engine damage, but I got lucky. They might be OK in a bone stock engine with stock cam and valve springs but I would not recommend for anything above stock.
joseph m mcmahon
Reviewed in the United States on November 8, 2024
seem fine but i needed self alighning so returned
Customer
Reviewed in the United States on July 10, 2023
Installed them on my 350 . ran good to 1st car show of the year.
MJ
Reviewed in the United States on October 3, 2023
It seems to be a well-made, good quality product. i think a person can spend more and get "as good" Why spend more? If they hold up, and I expect them to, they are a bargain.
Earthboy57
Reviewed in the United States on October 19, 2023
Good and quiet running rocker arms. Good quality and strength as well. No issues.
Juanita
Reviewed in Canada on January 10, 2022
This was part of my husbands Christmas present. He is rebuilding a car motor.
vince j.
Reviewed in the United States on January 22, 2020
I like these rocker arms put them on a sbc 406 build but haven’t finished and started the engine yet.
ka
Reviewed in the United States on November 17, 2018
Works like it should