85kycoupe

Someone told me all 5.0 engines from 87-93are forged bottom ends,Are they? If not which ones? i am looking for the best option for my 85 coupe. i have all the wiring and a good computer to up date it. i am just trying to find out which motors to look for.If they are forged are the lincon motors from the same time forged?

disturbed471985

1

AdderMk2

it was actually pre 87 that the forged TRW pistons started, and it went until 92.

1993 was the beginning of hypereutectic(sp) pistons

88BlueGT

+1 They had forged pistons until 92.

Chitown racer

None of the 5.0 came with forged "rotating assemblies" as the stock crankshafts were cast not forged. However all 1979-93 5.0's came with forged connecting rods. These rods are fine for stock or mild performance applications but come form the factory with a small 5/16" rod bolt (most other companies used 3/8" rod bolts). Although the stock rod will hold up for awhile theyare the first thing to let go in a performanceengine.If you plan on using these rods in a performance application you should replace the stock rod bolts with some ARP's and then have the rods resized. Personally, I always recommend just getting a set of Scat rods. Theycost about the sameamount asyou pay tohave the stock rodsrebuilt with ARP boltsand thier stronger. As for the pistons, all 5.0 H.O. engines from 1985 to 1992 usedaTRW forged piston, but the ones you'll want are the 87-92 pistons.