502 Mpi?
03-04-2007 | 08:32 AM
#2
VIP Member
Joined: Nov 2002
Posts: 4,176
Likes: 333
From: ankeny,ia.
The 502 EFI and MPI are the same thing.
Merc. just changed the nomenclature when they
introduced throttle body injection on other engines
in the line up. ( there were some engines that were
TBI and some that were port injected (MPI), the 502 was always port injected, but they're all classified as EFI )
They are about a reliable as anything out there.
Merc. just changed the nomenclature when they
introduced throttle body injection on other engines
in the line up. ( there were some engines that were
TBI and some that were port injected (MPI), the 502 was always port injected, but they're all classified as EFI )
They are about a reliable as anything out there.
Last edited by JaayTeee; 03-04-2007 at 08:39 AM.
03-04-2007 | 07:16 PM
#5
Registered
Joined: Jan 2002
Posts: 2,053
Likes: 39
From: Further South East of Dome Island
The MPI name also came out in 1996 when they switched to Gen VI roller blocks. Look for engine serial # 802600 or higher to get a Gen VI roller block. Below that is Gen V or IV.
Last edited by Pismo10; 03-05-2007 at 05:54 AM.
03-04-2007 | 08:09 PM
#7
Registered
Joined: Feb 2004
Posts: 4,909
Likes: 9
From: Northeast,Fla
03-04-2007 | 10:42 PM
#8
Masher touches my
Joined: Aug 2004
Posts: 2,280
Likes: 0
From: Phoenix, Az
Good motors, forged internals. Easilly 1000 hour motors as long as your maintenance is good. The stock fuel pump is prone to go out at some point on you and the injectors may or may not live forever, Chevron wtih Techroline is good for cleaning GM injectors. Internally they are pretty sound for the 415 hp they produce.
