SSLSXLQ9L92

iTrader: (3)

Brand new forged 370, still breaking it in. Got about 200 miles on it. Anyway i was giving someone a ride and got in it pretty good for a minute. Soon after started hearing a tapping than very quickly got pretty bad. Ended up being that a spring retainer keeper had came out and let go of the spring. Keeper was still laying right there and everything appeared to be undamaged so i recompressed the spring and stuck the keeper back in and cranked everything back down. Car is running fine, but its had me very curious as to what happened. My buddy is blaming my beehive springs not keeping up but they are rated for more lift than my cam has already. Anyone have any thoughts? Heads are L92's, springs are Manley Nextek beehives, trickflow pushrods, new oem rockers, cam is 226/236 588/601. ???

99Bluz28

iTrader: (35)

Maybe the locks were never fully seated into the valve lock when assembled. Did you go a head check all the other valve spring locks, and are the valve springs set to the correct seat height?

SSLSXLQ9L92

iTrader: (3)

Yes, i did check everything else out and everything was in place and tight. Seat heights were correct aswell. I guess the lock could have been not fully in. Ive been very concerned thinking i have some unstable valvetrain events going on here, maybe some valve float.

TurboBuick6

iTrader: (2)

OEM retainers and keepers?

dogsballs

this!!

i always give them a tap with a mallet or something to make sure they are seated.