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Trick Flow® GenX® 260 Cylinder Heads for GM LS7 TFS-3271T002-C01

Cylinder Head, GenX® 260, CNC Comp Port, Assembled, 70cc CNC Chamber, 448 Lb. Springs, Ti Retain, GM LSX, Each

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Brand: Trick Flow Specialties

Manufacturer's Part Number: TFS-3271T002-C01

Part Type: Cylinder Heads

Product Line: Trick Flow® GenX® 260 Cylinder Heads for GM LS7

Summit Racing Part Number: TFS-3271T002-C01

UPC: 842645109171

Combustion Chamber Volume (cc): 70

Intake Runner Volume (cc): 260cc

Exhaust Runner Volume (cc): 87cc

Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Intake Port Shape: Rectangular

Intake Valve Diameter (in): 2.200 in.

Cylinder Head Finish: Natural

CNC-Machined Combustion Chamber: Yes

CNC-Machined Intake Runner: Yes

CNC-Machined Exhaust Runner: Yes

Combustion Chamber Style: Heart

Intake Port Location: Standard

Exhaust Port Shape: Oval

Exhaust Port Location: Standard

Spark Plug Style: Angle

Intake Valves Included: Yes

Exhaust Valves Included: Yes

Exhaust Valve Diameter (in): 1.600 in.

Valve Springs Included: Yes

Maximum Valve Lift (in): 0.650 in.

Outside Diameter of Outer Spring (in): 1.300 in.

Damper Spring Included: No

Number of Springs Per Valve: Dual

Retainers Included: Yes

Retainer Material: Titanium

Locks Included: Yes

Lock Style: 7 degree

Valve Stem Seals Included: Yes

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: 12

Exhaust Valve Angle: 12

Valve Guides Included: Yes

Valve Guide Material: Powdered metal

Valve Seats Machined: Yes

Valve Seat Machine Style: 3-angle

Valve Seat Material: Ductile iron

Steam Holes Drilled: No

Oiling Style: Through pushrod

Machined for O-Ring: No

Heat Crossover: No

Quantity: Sold individually.

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 in. 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.

CARB EO Number: D-747 (pdf)
To see a list of qualifying vehicles, enter CARB EO Number D-747

Emissions: California EO Approved

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

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Trick Flow® GenX® 260 square port cylinder heads for GM LS7 are the best choice for your LS-based performance build for several reasons. The A356-T6 aluminum castings feature more material for increased rigidity and strength. Factory LS7 port locations, valve angles, and valve locations have been maintained to work with existing intakes and pistons. One-piece modular, 2024-T4 billet aluminum rocker arm mounts enhance valvetrain stability and are removable for shaft rocker setups. High flow, high velocity CNC Competition Ported runners with the premium high resolution surface finish provide all-out air flow and performance throughout the entire powerband. Plus there's clearance for 3/8" pushrods and through-deck coolant holes that fit all GM LS gasket and block combinations, Trick-Alloy powdered metal valve guides, and solid stem valves. Fully assembled heads also include Trick Flow® by PAC Racing Pacaloy valve springs, steel or titanium spring retainers, die forged steel valve locks, and stainless steel valves.

Trick Flow® GenX® 260 cylinder heads are emissions-legal under CARB E.O. D-747 for 2006 to present GM vehicles with 7.0L engines. They are available fully assembled or as bare castings and sold individually.


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Some parts are not legal for use in California or other states with similar laws / regulations

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