Big block 454 in my 98 1500 wt

Asked by GuruGRP49 Aug 29, 2020 at 12:37 AM about the 1998 Chevrolet C/K 1500 WT 4WD

Question type: Car Customization

Is it possible to put the 1974 454 in a 98 1500 W.T
I'm running a 4.3 now truck is very solid what
would be needed to due so

1 Answer

103,085

Obviously all your intake, sensors, wire harnesses, engine computer and other modules, etc., will be useless, you could run some electronic controls but it'd be aftermarket stuff. They were making 1500's in the 90s with 454's in them, so you could pull a lot of parts from one of those if you can find one. You'll probably want to run a 4L80E tranny as that's what most of those used, so you have a ready made setup for the tranny. Really depends on how modern you want to make your 74 motor, as far as intake and electronic controls go. I would not use older transmissions like a 700R4, just because you'd have to work in a TB cable. I'm pretty sure you can find kits for upgrading an older carb motor to a newer truck. As far as fitment goes, again just find and use the parts from a mid/late 90's 454 truck.

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