2001-2004 LB7 Duramax Premium Stock Plus Cylinder Heads w/ Torque Lock Cups (RH & LH Set)2001 2004 LB7 Duramax Premium Stock Plus Cylinder Heads w Torque Lock Cups (RH & LH Set) Restore factory performance and long term reliability to your 20012004 LB7 Duramax 6. 6L with these stock remanufactured cylinder heads, professionally upgraded with Torque Lock injector cups to permanently address one of the LB7s most common failure pointsinjector cup movement and coolant intrusion. Designed as a direct bolt on replacement, these remanufactured

Year Range: 2003-2004

Extreme Race and Pulling Only

for 83 & 91mm

Fully assembled LML Duramax short block

this short block provides a solid foundation built to last

Supports up to 700hp

-Injector has a 12mm x 1

the bearings have no flash plating for improved seating

1994-2002 5

Premium C Grade head gaskets and ARP 2000 head studs included

and mechanics who want the satisfaction of assembling their own engine while saving thousands in labor and assembly costs

5–2010 LMM Duramax 6