Comp 875-12 pro Magnum lifters?

[Pewter2K1]

Anyone use them?? Any different than the 850-12 OE-Rs?

[OneQuickV6]

They are more of an original replacement, and are more suited to most of our needas than the "R" lifters. The "R" lifters require the perfect install, the prefect preload setup, and are over-all just a PITA. Even LS1 guys tend to not like the "R" lifters, for these exact reasons.

[WickEdSix9838]

also the R lifters are only worth 150 more RPM so overall not worth all the hassle....

[Turbo V6 Camaro]

Originally posted by OneQuickV6:
They are more of an original replacement, and are more suited to most of our needas than the "R" lifters. The "R" lifters require the perfect install, the prefect preload setup, and are over-all just a PITA. Even LS1 guys tend to not like the "R" lifters, for these exact reasons.

glad a pro doing my motor lol

[Pewter2K1]

ok, so the 875's are the ones to get??? or the 850's??

[98Camaro3.8]

You got your part numbers backwards.
850-12 is the OE series (High Energy), 875-12 is the OE R series (Pro Magnum).

I'm going with the 850s, so I don't have to deal with the PITA install.