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Old 10-11-2015, 05:16 PM   #4 (permalink)
Diesel Head
frankenstien's Avatar
Join Date: Dec 2011
Location: Fairbanks, Alaska
Posts: 648

someone will correct me if i am wrong, but i believe you can use the bottom end of the newer lly/lbz motor, just not the heads due to different injectors and electrical stuff. if you need heads, you will need heads from the 04.5-05lly
2005 GMC 2500HD SLT LLY PCV reroute 5'' MBRP TB Straight Pipe, LBZ MP, Edge Insight CTS, All Season Diesel SS Tie Rod Sleeves,ProFab DP, EFI Live V2 DSP5 tuning by Danville, Merchant Auto Transfer case brace, S&B CAI, fass 150 adjustable lift pump,

HG's at 100,500 miles, studs and grade C's, as of 1/13/15 120k miles

1974 GMC Sierra Grande 383/TH350/205/D44/14FF
2016 F150 Roush NON-SC (wife's rig)
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