1998 502 Efi
#3
Registered
Re: 1998 502 Efi
A 1998 is a Gen VI. The big difference is the roller cam/lifter setup. The lifter bores are taller with a guide to keep the roller lifters from turning, Gen VI also has a cast aluminium timing chain cover with six bolts instead of ten. The harmonic balancer also is marked in degrees. Another big change is that the Gen VI can accept Mark IV big block heads supposedly and the Gen V could not due to the size of the water passages. Also Gen V & VI have a one piece rear main seal vs a two piece in the Mark/Gen IV. Also the water flow and internal oil flow pattern changed some in the Gen V & VI vs the Gen IV.The mechanical fuel pump option is also gone in Gen V & VI block vs Gen IV.
#5
Charter Member
Charter Member
Thread Starter
Re: 1998 502 Efi
Are there any valve springs,annual Impeller change out or periodic maintnance related items I should worry about other than the Ex. Manifolds, annual Impeller change out, ?
Thx,
Dean
Thx,
Dean
#7
Platinum Member
Platinum Member
Re: 1998 502 Efi
502 EFI ?
You mean 502 MPI?
or
a blue 500EFI?
blue motors need more attention to springs and lifters.
black motors only need gasoline and an occasional oil change. pretty much forever.
You mean 502 MPI?
or
a blue 500EFI?
blue motors need more attention to springs and lifters.
black motors only need gasoline and an occasional oil change. pretty much forever.
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07-07-2006 09:13 PM