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-   -   502 MPI Upgrades?? (https://www.offshoreonly.com/forums/do-yourself-boating-budget/379854-502-mpi-upgrades.html)

automobili_v12 07-10-2023 10:32 AM

502 MPI Upgrades??
 
What HP Upgrades can be done on a mid 90's 502 MPI Engine?

Griff 07-10-2023 11:39 AM

Upgrades are really only limited by your budget. You won't see any real gains from any bolt on stuff.

articfriends 07-11-2023 04:38 AM

cheapest big hp gain (per hp) would be a used supercharger of some sort. 2nd cheapeast hp gain (per hp) would be buy exhaust that allows MORE cam, pull heads, do head gaskets, valve springs, 3 angle valve job, rocker arms, pushrods, lifters and cam. That will cost you about 100$ per hp, not bad, Smitty


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