ok i dont know if i ever asked this but there is a real good i mean real good deal on a 91 blazer i found sitting in a driveway that hasnt moved in a while, its a 350tbi with a blown 700r4 only has first gear, power ev tinted glass alum wheels, sliding windows and 91,000 miles.....i was thinking about taking my 358 out of my truck and putting the 350tbi in so i can drive it more . the blazer is a 91 and the truck motor is a 74 will i need to change flywheels...? the rest of the blazer will be parted out except for dash pad, front bumper, grill, bezels ,window guts and of course the 350 and wiring... that sound bad.......?? changing the motor sound bad..?