Help with Piston and Cam Choice

[Smoking S]

I'm building a 98 Dodge 12 valve puller (pulling Only) and i am undecided on which pistons and cam i should go with. At what rpm should a billet cam become neceassary. Do they have problems breaking them? I sent my stock cam off to get ground by bullet cams, but i may not use it. I plan on trying to turn 5500 rpm and carry between 4000-4500 rpm going down the track, at events where the 4500 rpm limit is not in affect. As far as pistons, i have a set of FP diesel pistons that are suppose to be marine pistons. They have high compression though, 17.5-1, should i use these pistons and take some material off the top off the pistons(how much, 100 thousandths?) to get compression ratio down maybe to around maybe 13-1, 14-1, or 15-1. Or should i get another set? Suggestions and part numbers would be good. Thanks Skyler

 

[JW3]

I love to recommend you something but I dont know anything.op:

 

[Smoking S]

I guess i will just call a diesel shop and go with a billet cam... Just called the cam shop and said my cast cam came in two pieces along with the pvc pipe it was in. I don't think i will ever use UPS again :soap:

 

[KTA-Cummins]

5500rpm with a big p-pump you should be running a billet anyways. you dont say anything else about your setup or what class your running so I cant recommend anything else.

 

[Smoking S]

Can someone explain more on what it takes to get one of these billet cams in the block.

 

[KTA-Cummins]

The block needs to be machined to either except the front cam bearing on every journal or machined for roller bearings, its your choice. The camshaft material has a tendency to want to bond with the block so you need bearings or bushings to prevent that.