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Old 07-04-2012, 07:20 PM   #1
wwj75c30
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2002 5.3 in 73 c20

i was wondering if i can put this 5.3 in my 73 c20 i had a few questions
would it bolt up to my sm465? would my flywheel from a 350 work
and how hard would it be to convert it to carbed cause i dont wanna deal with computers
any info helps thanks
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Old 07-04-2012, 11:58 PM   #2
wwj75c30
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Re: 2002 5.3 in 73 c20

seriously noone?
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Old 07-05-2012, 08:52 PM   #3
crazy longhorn
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Re: 2002 5.3 in 73 c20

I havent gotten too deep into my swap yet,but here goes....your bell will mount right on the ls eng(you will be missing 1 bolt, upper rh side). Mcleod makes a .400 thicker LS flywheel, that will accept an 11 or 12 " clutch plate from your gen truck. It takes an LS-2 pilot bushing/bearing, from my understanding. Your LS starter should fit inside your stock alum bell. Mine wears a cast bell, & did take a little clearance work to fit the LS starter. you will need to fab your own dust cover for the bell. It is my understanding that Oreillys has a cheaper cast flywheel, to fit the app....maybe Leevon will chime in on that. I plan to run as computer/fuelie for the best on mileage, so I cant say much on the intake /carb. Most of the headers or manifolds on the LS, were designed to run a hyd clutch, so you need to watch that closely ,if running the old mechanical linkage (I plan a set of LS streetrod shorties on mine). Anyway back up, for more guys to play crazyL
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