Have 2003 Iron Block 6.0 - how can I tell if it is LQ4 or LQ9
02-03-2005, 02:41 PM
#5
TECH Enthusiast
iTrader: (8)
Join Date: Feb 2004
Location: In my garage
Posts: 579
Likes: 0
Received 0 Likes
on
0 Posts
Yeah same block.
LQ4 has hardend valve seats. I work for the company that RPO'd the trucks into duel fuel option. CNG does not lubricate the seat like regular pump gas and the hardened seats are required to make sure the engine survives under heavy loading for 150K+ miles.
LQ4 has hardend valve seats. I work for the company that RPO'd the trucks into duel fuel option. CNG does not lubricate the seat like regular pump gas and the hardened seats are required to make sure the engine survives under heavy loading for 150K+ miles.
