LLY/LBZ heads, whats the diff? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: LLY/LBZ heads, whats the diff?


Ben46a
04-01-2007, 05:04 PM
Mods, move this if im in the wrong. What are the difference in LBZ and LLY heads? I need a set of heads and see a set of LBZ units for sale. Just wondering is all.

McRat
04-01-2007, 05:06 PM
Glow plugs are different, other than that, they should work.

Diesel Tech
04-02-2007, 11:00 PM
The glow plugs are different and they do not interchange. You cannot use LBZ glow plugs in an LLY application as you will burn them up. So you will need LLY head to do the job right