Trick Flow Specialties TFS-3271T004-C01 - Trick Flow® GenX® 260 Cylinder Heads for GM LS7

Trick Flow® GenX® 260 Cylinder Heads for GM LS7 TFS-3271T004-C01

Cylinder Head, GenX® 260, CNC Comp Port, Assy, 70cc CNC Chamber, 448 Springs, Ti Retain, 6-Bolt, GM LSX, Each

Part Number:

TFS-3271T004-C01

Part Type:

Cylinder Heads

Product Line:

Trick Flow® GenX® 260 Cylinder Heads for GM LS7

UPC:

842645109195

Combustion Chamber Volume (cc):

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:

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:

Rocker Arms Included:

Rocker Arm Nuts Included:

Guideplates Included:

Valve Cover Mounting Style:

Centerbolt

Accessory Bolt Holes Drilled:

Yes

Intake Valve Angle:

Exhaust Valve Angle:

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:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

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. Does not fit with stock exhaust manifolds; aftermarket headers are required.

CARB EO Number:

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

Emissions:

California EO Approved

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.

Trick Flow’s GenX 260 square port aluminum cylinder heads for GM LS7 are designed to meet the needs of enthusiasts using any 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 high-end shaft rocker setups. Trick Flow’s 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. Other major improvements include the available 6-bolt per cylinder clamping for GMPP LSX and other aftermarket blocks, 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 two Trick Flow by PAC Racing Pacaloy™ valve spring packages.

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. 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, and are available fully assembled or as bare castings. Sold individually.

Warranty