scary fast 440ex big bore kit

[416exfreak]

it uses namura piston and sleeve...and a magnum race cam.....has anyone had any experience with these companies...or thier parts?..i would liek any input befor i spend my hard earned money on something is going to tear up...thanks guys(and gals)

[GPracer2500]

I thought Namura pistons where cast?? I'm not sure on that but I'd find out before I bought one if I were you. Personally, I'd use a forged piston in a high stress application.

[Wheelie]

Definitely go with a forged Slug. If that kit has over 11:1 compression, a HD con-rod would be money well spent.