i purchased a 4cylinder 1998 s10 frame to do a 53 swap a roo. i am installing a chevy 350 shortblock.I noticed in conversion parts, that it has headers that discharge to the rear of the engine and and oil pan change. 3 questions. can i use the stock oil pan, can i fabicate motor mounts easily and use the headers i have that discharge down in the middle (shorty) thanks for any advice or information i can have.I know the kits are availabe but im trying to do the most econimical way i can. thanks