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Old 06-14-2022, 10:16 AM   #2
Blue82Chev
Murph
 
Join Date: Jan 2004
Location: Central Minnesota
Posts: 206
Re: 454 vs 5.3 LS swap 1 ton Crew Cab 4wd opinions

If it were me, I'd build up the 454.

Change out the pistons for some with higher compression (Pretty sure factory was 8:1 on those)
Toss some better heads on it
Cam
Sniper EFI

You'd have yourself a nice runner for probably less than an ls swap. Those ls swaps can nickel and dime a guy to death.
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Mike

Vehicles:
1982 C20
2003 GMC Sierra
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