Product Description
Trick Flow GenX 260cc LS7 Cylinder Heads
4-Bolt | 70cc Chambers | Fits 4.100"+ Bore
Sold as a Pair of 2 Assembled Heads
GM LS fans, here is a sure-fire formula for making more power: Big bore LS engine + Trick Flow GenX 260 LS7 cylinder heads = huge power in a lightweight package. These 4-Bolt castings are designed to be used with factory GM blocks.
Trick Flow’s GenX 260 aluminum cylinder heads for GM LS7 are designed to meet the needs of enthusiasts using an LS-based engine block with a minimum bore diameter of 4.100". To improve the factory design, Trick Flow added more material to the A356-T61 aluminum castings for increased rigidity and strength. Then Trick Flow improved the valvetrain system by integrating modular one-piece, 2024-T4 billet aluminum rocker arm mounts that are removable for shaft rocker setups. Trick Flow’s high flow, high velocity CNC Competition Ported runners provide all-out air flow and performance throughout the entire powerband. Other improvements include clearance for 3/8" pushrods, through-deck coolant holes to fit all GM LS gasket and block combinations, Trick-Alloy powdered-metal valve guides, solid stem valves, and PAC Racing Pacaloy™ valve springs.
Trick Flow GenX 260 square port cylinder heads for GM LS7 work with all LS7-style intake manifolds. The heads maintain the factory intake and exhaust port locations, valve angles, and valve locations so they work with existing LS7-based pistons. These fully assembled cylinder heads include valve springs, steel or titanium spring retainers, die forged steel valve locks, and valves. They are emissions-legal under CARB E.O. #D-747 for 2006-present GM vehicles with 7.0L engines.
Overview:
- Combustion Chamber Volume: 70cc
- Intake Runner Volume: 260cc
- Exhaust Runner Volume: 87cc
- Cylinder Head Style: Assembled
- Cylinder Head Material: Aluminum
- Camshaft Style: Hydraulic Roller
- Intake Port Shape: LS7
- CNC-Machined Combustion Chamber: Yes
- CNC-Machined Intake Runner: Yes
- CNC-Machined Exhaust Runner: Yes
- Exhaust Port Shape: Oval
- Intake Valves Included: Yes, 2.200" Diameter
- Exhaust Valves Included: Yes, 1.600" Diameter
- Valve Springs Included: Yes, Dual Springs
- Maximum Valve Lift: 0.650"
- Outside Diameter of Outer Spring: 1.300"
- Retainers Included: Yes
- Retainer Material: Titanium
- Locks Included: Yes
- Valve Stem Seals Included: Yes
- Rocker Arm Studs Included: No
- Intake Valve Angle: 12
- Exhaust Valve Angle: 12
- Valve Guide Material: Powdered Metal
- Valve Seat Material: Ductile Iron
- Quantity: Sold as a Set of 2
Notes: These cylinder heads are not designed as a stock replacement, they can only be used on engines with a minimum bore diameter of 4.100". Includes new rocker arm rail mounts for use with LS7 1.8 ratio rocker arms. OEM rocker arm rail mounts will not work with these heads.
