TBI 454 vs. TBI 383 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*JCampbell* · 04-26-2012, 11:11 PM

Just pondering a few things and seeking a little input...

Looking to get a little more juice out of my daily driver '88 K20 Suburban and I'm undecided between building a TBI 383 or swapping in a TBI 454.

Not looking for crazy HP numbers, just looking for a little more oopmh for towing and a little more giddy-up for the green light.

Seems like a 454 would be a little easier from a swap perspective, meaning I could pick up a donor rig and swap everything over. Whereas the 383 would involve some trial and error as far as TBI tunability goes.

Any thoughts?

04-26-2012, 11:11 PM	#1
JCampbell Account Suspended Join Date: Apr 2008 Location: Hesperia, Ca Posts: 1,332	TBI 454 vs. TBI 383 Just pondering a few things and seeking a little input... Looking to get a little more juice out of my daily driver '88 K20 Suburban and I'm undecided between building a TBI 383 or swapping in a TBI 454. Not looking for crazy HP numbers, just looking for a little more oopmh for towing and a little more giddy-up for the green light. Seems like a 454 would be a little easier from a swap perspective, meaning I could pick up a donor rig and swap everything over. Whereas the 383 would involve some trial and error as far as TBI tunability goes. Any thoughts?



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