thnx quenton 4 the info. ill look in to all the names u gave me. i would love to keep it stock if i can so im not sure bout the E cam.4 the sprint engines did they not stop at the d 4 the cams and the E was the perfomance one at that time or no.i dont really wana change to the 455 id love to keep it stock but it has never ran right since ive gottin it .the 4,876 dollar rebuild has really gottin to me so im trying to be patience about it and stay origanl. yes thats how i boke in the engine when i put it in the car so i know that was done right. thnx for the info again appreciated