97HawkLT1

iTrader: (11)

As part of my new build, I am putting in a custom cam. So today I pulled the Hotcam out of my car that has been in there about 10k miles. It has been running fine. It was dynoed about 5 months ago and pulled 343 at the wheels and I took it to the track about a month ago. So I pull it out and three of the lobes were chipped. What causes this to happen? The cam is the hotcam specs but was done by an aftermarket company. I am hoping it was just poor quality. Anyone else seen this before?

96capricemgr

iTrader: (1)

Did you use HOT cam springs??

My first suspicion would be valve float and the LT4 springs everyone wants to use with the HOT cam are NOT good enough.

The roller lifter is very hard and when it comes smashing back down after during float it is hell on parts.

Then again it could be that you used some crappy regrind.

SS RRR

iTrader: (2)

It definitely looks like the lifters were being tossed off the ramps.

ss.slp.ls1

iTrader: (36)

Add "swing by the dealership to pick up some LS7 lifters" on your to-do list.

1redta

check your retainer and make sure it didn't give up on you, while you are in there

97HawkLT1

iTrader: (11)

Well I am glad I am changing it before it caused any other damage. I am installing new springs and all other top end stuff for the new build.

wrd1972

iTrader: (12)

float

robsquikz28

iTrader: (246)

yea im going with float especially since it happened to the front and rear of cam lobes...