do i need for my retro fit roller cam? what is the difference between these two?

this one

COMP Cams Cam Buttons: CCA-200 - summitracing.com

and this one

COMP Cams Cam Buttons: CCA-211 - summitracing.com

also do i need a wear plate also?
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what cover are you using?

Apparently a cheapo cover flexes and the cam can still walk forward. that can be fixed with a reinforced cover or a waterpump that has provisions to run a bolt to keep the cover from flexing.

 

The lengths of the two buttons are different. You have to pick the one you need for your timing cover.

The wear plate isn't necessary.

 

i havent bought a timing cover yet, and yes im fitting a roller into a 400.

is there a special cover i should buy or what?

 

the aluminum one by comp is good. ~$90. See if you can find that one.

 

this one?


COMP Cams Steel Thrust Plate Timing Covers: CCA-208 - summitracing.com

does that still need the button? it doesnt tell me which one i need for that one if it does

 

Well if you believe the picture, that cover comes with the button already.

If that was a stock cover, it would take the long button. A stock cover with a single flat recessed portion would take the short one.

 

guess ill have to call summit and ask them about the timing cover

 

If you plan on spinning over 6k then worry about all that

if not get a cheap cam button that you custom fit and grind it down untill you can put the cover on and it barely touches then the gasket will give you the clearence you need.

Agian this is for under 6k where the can will not walk as much.

over 6k you will need to get a better cover

 

i need a cover anyways, and i do plan 6-6500 at times... so ill just buy their cover since it already comes with the button