UGH. Last August I ordered the Rev lifters, PN 875-16. Today, I was in the garage and noticed that the PN was 850-16, the factory replacement. LOL. I installed these when i got them in August. Will i have any problems with these lifters?

 

Seems to me that Comp Cams owes you some money as the replacment lifters are cheaper.

 

the 850-16 is the High Energy. What RPMS are these good too? My car shifts at 6200.

 

They will work fine shifting at 6200. But yeah, whoever sold you those lifters owes you a few bucks difference.

 

With an LT4 Hot cam you can actually get away with stock lifters if their in good condition. That cam has pretty tame ramps on it.
Steve...

 

Thanks for the answers

 

I reused my stock 75Kmile lifters on my hotcam. I am now pushing 96K miles without a problem. Shifting at 6200 at the track.

Aaron