How strokers affect how a cam "acts"

elitesrock2 said
Engines Strokers increase the displacement of an engine which in turn makes the cam act smaller. Generally if you pick a cam 2 sizes larger than the characterisitcs you are looking for, it wil be a good choice. If you are confused...please call us.
This is a quote from hughes camshaft recommendation.
now the high rpm comment is because it will be used in the mud as well as "street" racing more so on the open roads around here. For some reason in my area it is commonplace to race trucks more than cars. and most the trucks out here are roller cam 383 strokers from the 67-72 area.

Well with mud and street use. I would think the smaller would be better. It's a lot of truck to get moving. And you're going to need torque for that.

elitesrock2 said
the heads are x heads that have been heavily ported off an 11 second 340 with a .655 solid roller cam that would make power to about 6700. i'm putting w2 heads on so that's why i'm using these heads. I basically came up with this build because i have a 340 block that is already machined and ready for assembly have roller lifters, springs and heads, forged h beam rods that are the correct length. so all i truly need is a crank pistons and cam to complete the assembly.

If I was you. I would phone some custom cam grinders (racer brown, bullet, etc) and see what they tell you. A phone call is free. And a custom ground cam, built exactly for your setup doesn't cost anymore than an off the shelf. In fact I believe jim over at racer brown is cheaper than the comp options. I could be wrong on that.

But when you call. Have EVERY spec ready. You better know how many farts you drilled into the seat cause they might wanna know that. Take a look at this to get an idea: Page Title

If you talk to those guys. They will really help you build a custom cam that will make the most out of your setup. And help you figure out how to get the most out of what you got. Honestly a 416, with heavy ported x heads, 10:1 compression, the right solid roller cam, proper exhaust and a good ignition/intake setup (dump the 650, get at least a 750 double pumper doesn't matter what brand), should make an easy 550/550 horse/torque. It will be a lot of fun no matter what it's in.