Re: Sm465 swap
I think they had a couple 400s but I don't know if they were 2wd or 4wd
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87 GMC Sierra 2500 4x4 350/TH350/NP203 Flow Tech long tube headers, throttle body spacer, Edelbrock Performer cam, true dual Flowmaster 40s, 6 inch Superlift suspension lift
2000 silverado extended cab stepside 5.3l. Stock for now
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