excalibur82

Bought a new boat in September . It is a 1994 35 lighting with 454 mag mpi's 385hp bone stock.. I bought new exhaust for it and want to up grade the cam and the ecm.. Any suggestions. Right now it has a flat tappet wanted to go roller thinking of the 731 grind. The exhaust is the emi thunder with dry tails. Thanks Robert.

phragle

iTrader: (3)

the mpi is 330 the mag is 385

excalibur82

It is the mag mpi

mike tkach

iTrader: (3)

the older carbed 454 mags were 365,the newer mpi mags are 385 i believe.

Knot 4 Me

1994 Gen V Mags would have been carb motors would they not? If you have a Gen V EFI (Lingenfelter intake) then it is a 330 HP non-Mag motor. Looks just like the later 385 HP MPI Mag motors.

MILD THUNDER

iTrader: (3)

They made a GEN V 454 and 502 MAG EFI. They were flat tappet. Stock cam was GM#14096209. 220/220 .500/.500 115lsa. Upgrading to a better hyd roller would be a step in the right direction.

MILD THUNDER

iTrader: (3)

I take that back. You'd be better off pulling them out and selling them. Try and find a set of 502/415HP mags with around 500 hours to drop in. Its not worth doing modifications and will significantly reduce resale value.

ealesh33

iTrader: (1)

I see what you did here lol

mike tkach

iTrader: (3)

im curious,does the 1994 gen5 engine have forged crankshaft&pistons?

MILD THUNDER

iTrader: (3)

They do if it's a "mag". Mike Sommers had 1995 gen v 502 mag MPI engines. He had them redone and installed stroker kits to make them 540's. His original GM forged rotating assemblies were removed. When I asked him if he wanted to sell me them, he said too late because he threw them in the scrap bin.