Had to cut them back a ton on the Bridgeport to clear the springs......on a stock single spring they would probably be fine, but we had to cut them and at that they barely made it.....Mike say's they'll be fine, so not worried.
One shaft came with the tie down hole diameters too small (your not going to drill them either) but I'll give PRW props for sending a replacement out ASAP on my first call and all was well.
(In PRW's defense they do claim these rockers will not fit on TA/AAR motors....I'm assuming due to the double spring diameter)
I got these second hand (never mounted) and for PRW to step up to the plate was commendable....but my budget rockers turned into a premium price real quick.....the old saying is true: YOU GET WHAT YOU PAY FOR 8)
Initially we ordered a stock length set of Comp 5/16 pushrods, but soon realized they wouldn't work......ended up with custom length Smith Brothers 5/16 heavy wall.....cha-ching $$$$$$
Rickster