Product Description
Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber
Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9
Sold as a Pair of 2 Assembled Heads
These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully CNC-machined to significantly increase the performance of LS1-powered cars and trucks. Trick Flow engineers altered the valve angles from 15° to 13.5° to decrease valve shrouding, increase mid-lift airflow, and improve rocker arm-to-valve cover clearance. Material was added at the rocker arm mounting points to increase high-rpm valvetrain stability. The spark plugs were relocated in the CNC-profiled combustion chambers to enhance mid-lift airflow and increase the rigidity of the casting for extreme horsepower applications. Top-of-the-line CNC Competition Ported runners have a premium high resolution surface finish for maximum flow and performance.
Trick Flow GenX 215 cylinder heads are emissions-legal under CARB E.O. #D-747 for 1997-present GM vehicles with 5.7L and 6.0L engines. These fully assembled cylinder heads include duel .650" hydraulic roller valve springs, titanium retainers, forged valve locks, and valves. These 4-Bolt castings are designed for use with factory GM blocks.
Overview:
- Combustion Chamber Volume: 64cc
- Intake Runner Volume: 215cc
- Exhaust Runner Volume: 80cc
- Cylinder Head Style: Assembled
- Camshaft Style: Hydraulic Roller
- Intake Port Shape: Cathedral
- Intake Valve Diameter: 2.040"
- CNC-Machined Combustion Chamber: Yes
- CNC-Machined Intake Runner: Yes
- CNC-Machined Exhaust Runner: Yes
- Exhaust Valve Diameter: 1.575"
- Valve Springs Included: Yes, Dual springs for hydrailic roller
- Maximum Valve Lift: 0.650"
- Outside Diameter of Outer Spring: 1.300"
- Retainer Material: Titanium
- Lock Style: 7 Degree
- Valve Stem Seals Included: Yes
- Intake Valve Angle: 13.50
- Exhaust Valve Angle: 13.50
- Valve Guide Material: Bronze
- Valve Seat Material: Ductile Iron
- Quantity: Sold as a Set of 2
Notes: Roller rocker arms are highly recommended. Harland Sharp SLS17 roller rocker arms are recommended per Trick Flow. For use on engines with a minimum bore diameter of 3.900".
