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Trick Flow® GenX® 185 Cylinder Heads for GM LT1 TFS-30400008-M54

Trick Flow Specialties TFS-30400008-M54 - Trick Flow® GenX® 185 Cylinder Heads for GM LT1

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Cylinder Heads, GenX® 185, Fast As Cast®, Assembled, 54cc CNC Chambers, 21° Valve Angles, GM LT1, Pair

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Trick Flow Specialties TFS-30410008-M54 - Trick Flow® GenX® 185 Cylinder Heads for GM LT1



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Manufacturer's Part Number: TFS-30400008-M54
Part Type: Cylinder Heads
Summit Racing Part Number: TFS-30400008-M54

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 54
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 185cc
Exhaust Runner Volume (cc): 67cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Shape: D-port
Exhaust Port Location: Standard
Spark Plug Style: Angle
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.020 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.600 in.
Outside Diameter of Outer Spring (in): 1.300 in.
Damper Spring Included: Yes
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.
Valve Cover Mounting Style: Centerbolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 21
Exhaust Valve Angle: 21
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
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold as a pair.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Trick Flow® GenX® 185 cylinder heads give you performance that closely matches CNC-ported cylinder heads—for about the same price as ordinary cast heads! Designed for naturally aspirated GM LT1 engines, the GenX 185 heads retain the factory compression ratio and have standard resolution CNC profiled combustion chambers to amplify performance. The valve angles were reduced to 21° from stock to increase piston-to-valve clearance and unshroud the chambers for better airflow. Power-building Fast As Cast® runners duplicate the profiles of fully CNC-ported heads, resulting in high airflow rates without costly CNC-porting. These heads accept all stock sensors and fittings. Trick Flow GenX 185 cylinder heads are available fully assembled or as bare castings.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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