Dodge 1500 2002 5.9 Magnum Camshaft Flat, Roller, Hydraulic Roller

[Tristen carruthers]

I need help I have my dodge 5.9 360 and Im about to buy a cam shaft but I was woundering if it's okay to put a non roller in the engine it's just a flat tappet camshaft, and could I just use rollers on a flat tappet? Or is it specific,like roller cam with roller tappets?


And dose it make a difference by the year?

 

[Kern Dog]

Ooooooo! It is good that you asked!
The lifters HAVE to be matched to the camshaft. Roller camshafts need roller lifters, Flat tappet cams can be either solid or hydraulic but they need the matching lifter for the type (Solid/Hydraulic)
The engines that came with a roller cam CAN be fitted with a NON roller cam. Some did NOT have provisions in the block for a mechanical fuel pump so if you have one of those, count on using an electric pump.

 

[rumblefish360]

Kerndog is on it!

IF you want to use that Hyd/solid cam in a roller cam engine, you will need (of course) the matching lifters and new longer pushrods.

It would be much easier and quicker to get a roller cam and re-use the roller lifters. IMO, also get a new timing chain.

 

[Lelo Dart]

Unless this is a race engine, why go backwards? The hyd roller is better on on most counts except cost. Can't see the point in having a magnum engine and not using the roller cam.

 

[MOPAROFFICIAL]

I'd have the stock roller reground and run it with the Hughes eccentric snout to run a fuel pump .

 

[nm9stheham]

Hydraulic flat tappet cams and the lifters/tappets are much cheaper to buy so the rationale is there. But add in around $150 for new pushrods and that cost difference gets a lot smaller. If you do go with the flat tappet type, then make sure that the AMC type lifters with oiling holes in the tops of the plungers are used that push oil up through the pushords to the rockers in the Magnum.

As said, the roller cam profiles are superior to flat tappet when you look at the overall combination of HP, torque and economy. You get better lift-to-duration ratios.

 

[nm9stheham]

I'd have the stock roller reground and run it with the Hughes eccentric snout to run a fuel pump .

Seems like a very good idea for retaining the roller benefits at a lower cost !