Cstone812

iTrader: (5)

Planning on putting the MS3 in my car this winter along with the ported pump and LS2 chain....my question is do I NEED to have new lifters and rocker arms as well? My car does have 100k miles on it....Just wondering if it is necessary for me to upgrade those as well.

jebuzws6

iTrader: (5)

rocker arms are not really necessary since your car doesn't really have a lot of miles, but I would suggest upgrading to some ls7 lifters when you install the cam. Are you upgrading the springs and as well?

krissoto

iTrader: (3)

its not absolutely necessary, but you can either do that, or the trunion upgrade. But to answer your question stock lifters work

Sales1@Texas-speed

I would recommend sticking with the stock rocker arms and going with the trunion upgrade kit. Depending on mileage and condition of your engine lifters are definitely not a bad idea to replace.

Cstone812

iTrader: (5)

Thanks Aaron I will look into getting the trunion upgrade I will probably go ahead and upgrade my lifters as well.

CustomX

iTrader: (1)

Of coarse lifters are recommended but you don't have too. Ive helped a few people cam a car with over 100k miles on it with out replacing the lifters or the oil pump etc and they havent had any long term effects. The stock cam should give you an idea on what your working with when you remove it. Ive made the mistake of cheaping out doing it the inexpensive way ( F13 cam after 15k+ miles 1 damaged lobe and lifter, didnt check valve springs) just replaced the cam and the one lifter (got lucky and didnt have to remove heads) and sure enough a few months later a few other lifters failed. If you have the time knowledge and money do it

projectX

iTrader: (51)

I would def change the lifters if I were you.

badazz99ss

iTrader: (16)

I installed the ms3 cam on my camaro at 124k. Didnt change lifters or rocker arms I put 3k on it after that and still runs strong.

Datankid069

iTrader: (15)

^^^x2 Installed my ms3 w/comps behives at 119,000 and every bolt on you can throw at the car with a 75 shot and the car runs amazing. So to answer your question NO YOU DONT NEED THEM.