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

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.

Good and quiet running rocker arms. Good quality and strength as well. No issues.

Poor finish, light sanding to remove burrs

Installed them on my 350 . ran good to 1st car show of the year.

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.

I like these rocker arms put them on a sbc 406 build but haven’t finished and started the engine yet.

Works like it should

This was part of my husbands Christmas present. He is rebuilding a car motor.