Serious horsepower for your LS1-based engine, heads sold individually.
Trick Flow GenX® 220 cylinder heads for GM 5.7L LS1 engines are the best value in GM LS performance. These cathedral port heads incorporate features of Trick Flow’s fully CNC-ported LS heads such as 13.5° valve angles, decreased valve shrouding, increased mid-lift airflow, relocated spark plugs, CNC-profiled combustion chambers (except porter heads) with port-to-valve seat blending (bowl blending), improved rocker arm/ valve cover clearance, and rigid casting design in a more affordable “Fast As Cast” version that flows nearly as much air as Trick Flow’s competition ported heads. The special Fast As Cast® runner design duplicates the port shape and profile of fully CNC-ported runners, resulting in near-CNC-ported performance for the same price as regular cast cylinder heads. Cylinder heads are available fully assembled or as bare castings.
Part Number: TFS-3061B001
Part Type: Cylinder Heads
Product Line: Trick Flow® GenX® 220 Cylinder Heads for GM LS1
UPC: 842645107191
Cylinder Head Style: Bare
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 64
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 220cc
Exhaust Runner Volume (cc): 80cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Shape: Cathedral
Intake Port Location: Standard
Exhaust Port Shape: Oval
Exhaust Port Location: Standard
Spark Plug Style: Angle
Intake Valves Included: No
Intake Valve Diameter (in): 2.040 in.
Exhaust Valves Included: No
Exhaust Valve Diameter (in): 1.570 in.
Valve Springs Included: No
Damper Spring Included: No
Retainers Included: No
Locks Included: No
Valve Stem Seals Included: No
Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: No
Valve Cover Mounting Style: Centerbolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 13.50
Exhaust Valve Angle: 13.50
Valve Guides Included: Yes
Valve Guide Material: Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Ductile iron
Steam Holes Drilled: No
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold individually.
Notes: Combustion chamber features a CNC bowl blend. Must be used with roller rocker arms.
