DSRE

iTrader: (7)

I can't believe it but i actually broke a TD shaft rocker on my way to work today at 70mph 1800rpm lol, it broke just the body into two pieces so i was very lucky in deed, i'm waiting to hear back from td on what they think as i really can't find a reason why it happened other than it finally fatigued and let go but thats racing! springs are comp 26926 shimmed .050 from cb
aprox 175lbs seat 475lbs open
8-9000 miles of street driving Rarely ever above 5,000 rpm
383 iron block 11.3:1
Ported Dart 205's
Comp Street Solid roller 270-277 adv 235*in 240*ex .635net lift 113lsa +3
Morel Solid Roller Lifters, Smith Bros .116 wall 5/16 P-rods

vettenuts

iTrader: (4)

Curious if you set the wipe when they were installed. They seem to be very close to the exhaust side of the valve stem. If that wasn't done during installation I would do that now to see if it was a contributor.

crainholio

iTrader: (2)

Valve tip on the failed one looks very dull in the pic, did it get hammered (as in too much lash)? Snap a close-up pic of it.

DSRE

iTrader: (7)

Yes I checked the swipe pattern, none of them perfectly center or completely contact the stem Side to side most Shaftrocker setups don't, comp calls for. 016 intake. 018 exhaust I've ran them as tight as. 012i .014e and as loose as. 020 but the lash always stays put TD says I pushed them for too long LOL oh well I have different heads and want to sell the solid roller stuff to pay for a hyd setup, I'm just replacing the one rocker and still using them
They were made in 2001 and I put new bearings in them but they use to be on a 750 lift race car so I'd say TD makes awesome stuff!

vettenuts

iTrader: (4)

The reason I asked is the rollers of those not broken appear to be very close to the exhaust edge of the valve stem.