seriously if going stroker buy the kit!! lot cheaper and easier than piecing it together your self and itll come already balanced!!! but if your going stroker youll need better heads than 318s, alot better!!! lotta folks hate on the big muther thumper cams cause a cam spect to yur build will run better but nuttun wronge with a thumper if its what you want , IMM and joe sherman both have made mad power with them! i got the big mutha hydrolic roller cam im gonna use in my roller LA/magnum head build and see how it dose my self if im not happy ill send it off for a re grind!