Swapping 454\'s... 1987 suburbans 454 engine took a crap. I picked up 454 out of a 1995 suburban for cheap with LOW miles on it. I'll just be swampping everything over from the 1987 motor to the 1995 motor. Wondering what the power specs are on the 1987 motor vs. the 1995 motor? Anything I should do to the 'new' engine before I put it back in? Cheap upgrades maybe?