I am installing the cam back into my engine (1969 350) and misplaced the lifters. I am going to pickup new ones. Do I have to break in the engine at 2000 + rpms the same as breaking in a cam even though the cam already has miles on it...to break in the lifters??

Not particularly, but doesn't hurt.

yes!

I am installing the cam back into my engine (1969 350) and misplaced the lifters. I am going to pickup new ones. Do I have to break in the engine at 2000 + rpms the same as breaking in a cam even though the cam already has miles on it...to break in the lifters??

I wish you luck. I would never use used cam or lifters:noway:.cams are cheap:yes:.if wipe out the cam or lifters ,now you have all the work and the money out again for parts. Richard:beers:

And don't forget the break-in grease.

I always wondered about using an old cam and new lifters. I remember reading and old article where they swap out the lifters only for a set of Rhodes lifters. I suppose it is possible but I always thought you were supposed to break them in together.

yes, re-do break-in.

I wish you luck with todays oils so be sure to get some additive. :yes:

I wish you luck. I would never use used cam or lifters:noway:.cams are cheap:yes:.if wipe out the cam or lifters ,now you have all the work and the money out again for parts. Richard:beers:
x2^.
If its a roller cam..no problem and no break in reqd.If she is a flat tappet style...your rolling the dice.

I have used new lifters on used cams several times. I add EOS along with the cam lube and break it in like any flat tappet new cam. I have never had any problems at all doing this.

Just finished this morning...runs great. Thanks for the posts guys!

Happy for you Ken.If you have no issues after 500 miles...book a ticket to Vegas,your on a roll.:beers:

if you think about it,it is no different than replacing lifters on a vehicle under factory warranty...we do that all the time at work and never has there been an issue.

if you think about it,it is no different than replacing lifters on a vehicle under factory warranty...we do that all the time at work and never has there been an issue.


Ill second that!

if you think about it,it is no different than replacing lifters on a vehicle under factory warranty...we do that all the time at work and never has there been an issue.

Thats because todays engines use roller cams..not old school flat tappet types.