mustangman36578

im going to be rebuilding my engine this winter and will be supercharging it with a centrifical supercharger (not sure what brand yet leaning towards a vortech though) and possibly running nitrous to it depending on how much money i have left after everything else. im going with forged pistons and connecting rods and stock crank but im not sure what pistons to get. should i get dished and if so how deep and what is a good brand to go with?

2000GT4.6

Stock crank + supercharger + nitrous = boom.

If your going to the trouble of pulling the engine and rebuilding it just do the entire rotating assembly. It leaves you with more room to grow and gives you extra insurance.

so far as the dish etc, that is a question best asked from the engine supplier and tuner you use. Alot will depend on it, including how much boost you plan to run and what your future plans are.

The rods are the weakest point, but IMO its not worth it to leave out the crank. You can pick up a new cobra crank in the 600 dollar range.

tim2002gt

Yeah, if your gonna run the vortech, you should definately upgrade the crank with the rest of the rotating assembly. With nitrous too, it will be a must!

contentsunderpressur

I recommend Manley -18cc dish pistons with about 15 lbs of boost. I'm running Diamond -15cc dish pistons in mine and 11 lbs of boost with a 75 shot. My compression ratio is 9.5 though and I can't go with any more boost without race gas. That's why I say go with the -18s. As far as the crank goes I've got the stock crank as well. It's proven to hold 700 rwhp twin turbo 2vs. THR has built a couple of them. They said they've never broken one or heard of anyone breaking one for that matter. Just make sure you get a good rod and piston in there and you'll be ok.

NeedStangSpeed

Well if the stock cranks were so good, they never would of made forged cranks. Ford never would of put forged in a cobra. So to me, looking at it in reason, if I'm at the point of rebuilding which I will be soon, I'm doing it all now and not have to worry aboutit later. MMR, summit racing, and other places sell entire rotating assembly's for desent prices. It's usually cheaper to buy the whole assembly then to piece it together as you go. So like with any other post on here, it's your stuff, your decision.

04BlueGT

Yes, the stock cranks are pretty good for what they are, but a forged crank is great insurance. If your stock crank fails, you'll need yet another set of pistons and rods, and maybe a new block. Another way of looking at it is, "There never seems to be time to do it right, but there always seems to be time to do it over." Forgot who said it.

Another place to look for rotating assemblies is DSS Racing. They also sell short blocks, long blocks, ported heads, etc. That's who I'm leaning towards when I replace my engine.

lizzyfan

Manley-priced right

mustangman36578

yea i might end up going with a forged crank. the insurance of knowing its there and that im not running on borrowed time would be nice and ijust might have to hold off on the nitrous kit for a little while thenbecause im building this on a budget. thanks for all of your input everyone.