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AGGIE_04 10-13-2002, 09:06 PM I found a good deal on a running 454. What do i need to put this in my '83 K5? I know I need to change the flexplate to flywheel to adapt to my sm465, but am I going to need a new harmonic balancer too? What about clutch? Also, I know i need a bigger radiator, will a k20 or k30 radiator bolt in? TIA :D FJ-Dave 10-14-2002, 12:14 AM everything from a K10/ 20 will bolt up, rad, motor mounts, ect. just make sure to get the right flywheel, (externally balanced) Hawaii500_1999 10-15-2002, 06:39 PM also don't make the mistake i made with the fuel pump. i put my old small block pump on and the motor was starving for gas. run the big block one. AGGIE_04 10-15-2002, 07:24 PM thanks Dave and hawaii, i never would have thought of the fuel pump thing on my own, but I think this engine has a one on it already, so i should be good there. BlazzinOR 10-16-2002, 01:13 PM Don't forget to start thinking about the rest of the drivetrain...........first weak link is the 10 bolt rear, followed closely by the 10 bolt front end................plan on a 14BFF rear. 4 core radiator is important, easy upgrade. :eek: Hawaii500_1999 10-16-2002, 01:51 PM Originally posted by BlazzinOR 4 core radiator is important, easy upgrade. :eek: i couldn't agree more. that was my biggest battle when i went to a 454. i learned alot about cooling in the process. - 4 core or more for a big block - clutch fans cool better than flex fans - shrouds must be used for a fan to work properley - moving the trans cooler out from the front of the radiator is good for about 10 degrees(i used a cooler with it's own fan) - bigger exhaust helps too.(i had 3 inch) | |