Assault Racing Products ARA3021638 for Small Block Ford Polylock Aluminum Rocker Arms 1.6 Ratio 3/8 Stud SBF

Great craftsmanship using them on aftermarket aluminum heads they aligned perfectly

They worked well and no noise

Roller bearings seemed gritty when unboxed, finish was excellent and packaging was solid and no shipping damage. Locks up on stud nice and after going to a 6.100 pushrod the center and sweep were perfect. These do not fit under stock 5.0 covers but that was expected. LMR SVE covers will work in the short version and still clear the throttle body on a Fox EFI SET-UP. Was told that after priming oil system that bearings would smooth out and they did.

Very well made

Haven't used yet but can't wait

Listed as “Extreme race series.” Well, they’re definitely not. Came apart. Apparently, they are not for solid lifter heavy valve springs. Seller says 400-ish max. Sorry, that’s NOT extreme race series. Seller offered no alternatives and told me I was out of luck. Will never buy these, or recommend them to anyone. Will never buy from seller again.

Beautifuly packaged, smooth operating. require guide plates,hardened pushrods. Luv them. Went on new aluminum heads.

Have not installed yet, look great and all bearings feel good and smooth with no rough spots.