4.0 comp cam. whats all needed?

[kyle1990ranger]

Looking to do a 410 or 422 cam in my 4.0. I noticed comp cams says I need different valve springs. Iv also heard I need longer push rods. Anyone know where I can get said springs and push rods? Has anyone done this before? Thanks

 

[cp2295]

Just did this to my rig. Used a 410 cam. Didn't use different springs just got new stock springs. U need 5.550" overall length pushrods with 5/16" diameter tube, 3/16" ball ends closed. Call smith bros pushrods give them those specs I got all 12 shipped for under $100.

Same pushrods for the 422 cam, u need procomp 988 dual springs and a machine shop to get them to fit on the heads.


Sent from my iPhone using Tapatalk

 

[projectaffordable]

when you say getting the springs to fit on the head what are you referring to?

 

[JoshT]

The aftermarket performance springs that he mentioned won't fit a stock head. You have to get the spring seats on the head machined so that they will fit.

 

[projectaffordable]

i was looking around and tom morana has upgraded valve springs does anyone know if these require fitment also?