Can you replace lifters with head on

[James OBrien]

I've got a lot of upgrades to do in a few weeks including ARH long headers, a Jay Greene cam, hellcat lifters/mds delete and upgrade springs. Question on the hemi-heads; can you replace the lifters with the heads on with an extractor which I've done before on other engines or do you have to pull them? If I do have to pull them which I probably will do anyway does anyone have recommendations to do an upgraded head gasket and would it gain me anything other than peace of mind?

 

[Pull Ya]

If you got your parts from Jay Greene, that would be a good place to start to get the answers to your questions about how to install his stuff.
Jay

 

[chris52010trx4]

Simple answer is no. But its been done by MotorCityMechanic on youtube... he made a tool in which he goes in where the camshaft goes and has a tool that latches them and then turns them 90degrees in order to take it out... You wont find one for sale though unless you get creative enough to make it youself... So ya you will have to pull heads. Cometic makes quality gaskets, Fel pro MLS or OEM are all fine options.. Dont think youll get any gains though

 

[Tach_tech]

If you’re not going forced induction or anything, use the OE head gaskets. They’re MLS and work great.

 

[James OBrien]

Thanks for the input folks, appreciate it!

 

[broken arrow]

2012 5.7 no tick yet but misfire at high RPMs wondering if i changed the ( lifters only ) would that work or do you need to replace the camshaft also sorry for being a nag

 

[Lyle Longboat]

If your going to do lifters, should play it safe and switch the cam while it’s apart…. Don’t want to have to do the job twice.

 

[James OBrien]

Yes, the cam is likely toast. Lifters don't go out without damaging the cam.

 

[Tach_tech]

Yes, the cam is likely toast. Lifters don't go out without damaging the cam.

If the lifter is just collapsed the cam won’t need to be replaced. I’d say about 2/3 the lifter/cam jobs we do need a cam. The other 1/3 are just a collapsed lifter or the customer brought it in soon enough that the cam isn’t damaged.