Click to enlargeMEFI 4B ECU

The MEFI 4B Ecu is a proven stand alone engine controller from Delphi Electronics. It is ideal for marine, offroad, and streetrod use. It can control traditional small block and big block chevy engines utilizing a HEI Distributor and also works with the latest Gen III engines such as the LS1, LS2, LS7 and some of the 8.1L big blocks all which utilize individual coil pack ignition systems. AS&M also can supply complete wiring harnesses for any of the above mentioned systems.

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