

2004.5-2005 Duramax Race Long Block (PDM-LLYRLB)
Description
The Industrial Injection Race Duramax Long Block is built for competition use on the 2004.5-2005 LLY Duramax. Includes Carrillo billet rods, a 14mm Gorilla Girdle with ARP main studs, a billet alternate-firing camshaft, ATI Super Damper, Suncoast billet flexplate, and 5-axis CNC race-ported heads with ARP 625 head studs. Assembled and ready for accessory transfer.
Features
- Balanced and blueprinted rotating assembly
- Sim-tested short block
- Coated and chamfered de-lipped pistons
- Balanced and keyed stock Duramax crank
- 14mm Gorilla Girdle with ARP main studs
- Carrillo billet connecting rods
- Keyed performance billet alternate-firing camshaft
- ATI Super Damper
- Suncoast billet flexplate
- New oil pump, water pump, and oil cooler
- New oil pickup tube
- Stock oil pan
- Billet crankshaft available
- 5-axis CNC race-ported heads, hand-blended
- High-strength alloy heat-treated iron-based valve guides, diamond-honed
- Premium nickel-based non-magnetic valve seat inserts
- New unshrouded valves with multi-angle valve job
- Duramax OEM head gaskets and ARP 625 head studs
- Performance 130lb valve springs
Notes
- Core deposit applies — keep your old long block and return it to recover the deposit.
- Does not come with valve covers, rocker assembly, pushrods, or additional gaskets for assembly.
- Does not come with any fuel or turbo components — this is a crate long block.
- All Industrial Injection short blocks and long blocks must be run with Joe Gibbs Break-In Oil (not included) for the initial 300-500 miles.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Description
The Industrial Injection Race Duramax Long Block is built for competition use on the 2004.5-2005 LLY Duramax. Includes Carrillo billet rods, a 14mm Gorilla Girdle with ARP main studs, a billet alternate-firing camshaft, ATI Super Damper, Suncoast billet flexplate, and 5-axis CNC race-ported heads with ARP 625 head studs. Assembled and ready for accessory transfer.
Features
- Balanced and blueprinted rotating assembly
- Sim-tested short block
- Coated and chamfered de-lipped pistons
- Balanced and keyed stock Duramax crank
- 14mm Gorilla Girdle with ARP main studs
- Carrillo billet connecting rods
- Keyed performance billet alternate-firing camshaft
- ATI Super Damper
- Suncoast billet flexplate
- New oil pump, water pump, and oil cooler
- New oil pickup tube
- Stock oil pan
- Billet crankshaft available
- 5-axis CNC race-ported heads, hand-blended
- High-strength alloy heat-treated iron-based valve guides, diamond-honed
- Premium nickel-based non-magnetic valve seat inserts
- New unshrouded valves with multi-angle valve job
- Duramax OEM head gaskets and ARP 625 head studs
- Performance 130lb valve springs
Notes
- Core deposit applies — keep your old long block and return it to recover the deposit.
- Does not come with valve covers, rocker assembly, pushrods, or additional gaskets for assembly.
- Does not come with any fuel or turbo components — this is a crate long block.
- All Industrial Injection short blocks and long blocks must be run with Joe Gibbs Break-In Oil (not included) for the initial 300-500 miles.













