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Trick Flow Specialties TFS-32610002-C01 – Trick Flow® GenX® 255 Cylinder Heads for GM LS3

$1,260.00

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SKU: TFS-32610002-C01 Category: Tag:

Description

Cylinder Head Style:Assembled

Cylinder Head Material:Aluminum

Cylinder Head Finish:Natural

Combustion Chamber Volume (cc):69

CNC-Machined Combustion Chamber:Yes

Intake Runner Volume (cc):255cc

Exhaust Runner Volume (cc):87cc

CNC-Machined Intake Runner:Yes

CNC-Machined Exhaust Runner:Yes

Combustion Chamber Style:Heart

Intake Port Shape:Square

Intake Port Location:Standard

Exhaust Port Shape:Oval

Exhaust Port Location:Standard

Spark Plug Style:Angle

Intake Valves Included:Yes

Intake Valve Diameter (in):2.165 in.

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:Chromoly steel

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:Yes

Guideplate Pushrod Size:5/16 in.

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:Includes new rocker arm rail mounts for use with LS3 1.7 ratio rocker arms. OEM rocker arm rail mounts will not work with these heads.

Trick Flow engineers combined the best features of factory GM LS3 and LS7 cylinder heads with their own race-winning engineering and technology to create the ultimate square port LS cylinder head for 4.000″ and larger bore engines—the GenX® 255. Trick Flow GenX 255 heads feature fully CNC Competition Ported runners with a premium high resolution surface finish for maximum airflow and performance potential. The valve angles have been changed from 15° to 12° to increase piston-to-valve clearance and allow the use of larger camshafts. The coolant holes through the head deck were redesigned to work with all LS head gasket and engine block combinations. Stock LS3 ports accommodate LS3-style intake manifolds and LS9/LSA blower assemblies. Trick Flow GenX 255 heads are available with standard or 6-bolt per cylinder mounting patterns. The heads are available fully assembled or as bare castings.

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