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mark IV 454 conversion

Old 07-16-2012, 12:07 PM
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Default mark IV 454 conversion

I have a 1990 GMC Jimmy full size 4wd with a very tired 350 TBI. I want to put in a 454 from a 1988 one ton chevypick-up. I have the big block and all the accessory brackets. I also have the power steering pump. I hope to re-use my AC compressor, alternator, and as much as the stuff from the front of my 350 as I can since my components are nearly new. Has anyone attempted this conversion and can they offer any advice concerning which parts will swap over -- like the tensioner, idler pulley, etc...? Does anyone have a diagram so that I can see how all the brackets bolt together. I will also need to gather all the bolts and hardware for the brackets. I hope to re-use some of the hardware from the 350. Any help would be appreciated.
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