marine intake onto an 98 vortec

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FirstClassMedic

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Hello, putting a marine intake on my 98 Tahoe. I purchased a 98 Big block injector harness and adapter cables. I plan on getting the harness side from a scrapyard and splicing it to the small block end. Question is if the wiring colors on the harness match, since the 98 Tahoe also came with a big block and diesel engine. If not does anyone have the wiring info for a 98 Tahoe 5.7 so, I can splice the harness together. Thanks20240709_122524.jpg
 

BattleTank

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Do you have the black box ecu or silver box.

Silver/aluminum ECU is the 0411 ECU, stock on newer vehicles.

You probably have the older black box version.

Many websites out yonder that cover the simple ECU swap, probably would benefit your current situation if you swapped.
 

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