Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck TFS-K305-455-425

Part Number: TFS-K305-455-425

$4,307.89

Head Combo, GenX® Top-End, 455 hp/426 ft.-lbs. Torque, Chevy, 5.3L, Kit
See More Specifications | Check the Fit

Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck TFS-K305-455-425

Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck TFS-K305-455-425

TFS-K305-455-425

Part Number: TFS-K305-455-425

$4,307.89

Not Available At This Time

This product cannot be ordered at this time. Future availability is unknown. We apologize for the inconvenience.

Not Available At This Time

This product cannot be ordered at this time. Future availability is unknown. We apologize for the inconvenience.

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Overview

Brand:
Manufacturer's Part Number:
TFS-K305-455-425
Part Type:
Product Line:
Summit Racing Part Number:
TFS-K305-455-425
Cylinder Heads Included:
Yes
Camshaft Included:
Yes
Camshaft Type:
Hydraulic Roller Tappet
Duration at 050 inch Lift:
216 int./220 exh.
Advertised Duration:
285 int./292 exh.
Valve Lift with Factory Rocker Arm Ratio:
0.560 int./0.560 exh.
Intake Manifold Included:
No
Fuel Delivery Style:
Fuel injected
Carburetor Included:
No
Throttle Body Included:
No
Fuel Rails Included:
No
Fuel Injectors Included:
No
Timing Chain and Gears Included:
No
Lifters Included:
No
Gaskets Included:
Yes
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Cylinder Head Color:
Natural
Combustion Chamber Volume (cc):
58
CNC-Machined Combustion Chamber:
Yes
Intake Runner Volume (cc):
205cc
Exhaust Runner Volume (cc):
80cc
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Intake Port Location:
Standard
Intake Port Shape:
Cathedral
Exhaust Port Shape:
Oval
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
Intake Valves Included:
Yes
Intake Valve Diameter (in.):
2.000 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.575 in.
Intake Valve Angle:
13.50
Exhaust Valve Angle:
13.50
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.300 in.
Damper Spring Included:
No
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Valve Stem Seal Material:
Viton® fluoroelastomer
Rocker Arms Included:
Yes
Rocker Arm Style:
Full roller
Rocker Arm Ratio:
1.7
Rocker Arm Studs Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Pushrods Included:
Yes
Valve Covers Included:
No
Valve Cover Mounting Style:
Centerbolt
Accessory Bolt Holes Drilled:
No
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 as a kit.
Notes:
Aftermarket tuning is required after installation of this kit.

Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck

Get more brawn for your Chevy truck with GenX® Top-End engine kits from the power people at Trick Flow®. The engineers at Trick Flow® have been hard at work tweaking these LS engine kits so you get dyno-proven horsepower with no guesswork! These kits feature GenX® aluminum cylinder heads with fully CNC-machined and bowl-blended combustion chambers and CNC-ported intake and exhaust runners for maximum airflow. They also offer a heat-treated and precision-ground Track Max® hydraulic roller tappet camshaft for enhanced power, as well as Trick Flow® one-piece chromoly pushrods with precision-drilled and chamfered oil holes. These kits also include shaft mount roller rockers, bolts, and gaskets. Matched for more muscle, the components in these Top-End kits can add 50-75 hp to your LS-powered truck. Get bolt-on, proven Trick Flow® performance with GenX® Top-End engine kits for your GM LS truck.

Applications

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Kit/Combo Contents

Click here for more information about Trick Flow Specialties TFS-21407500 - Trick Flow® Chromoly Pushrods

Trick Flow Specialties TFS-21407500 - Trick Flow® Chromoly Pushrods

Pushrods, 5/16 in. Diameter, 7.500 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Set of 16

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Cylinder Head, GenX® 205, Competition Ported, Assembled, 58cc CNC Chambers, GM LS Vortec, Each

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Click here for more information about Trick Flow Specialties TFS-30602001 - Trick Flow® Track Max® Hydraulic Roller Camshafts for GM LS

Trick Flow Specialties TFS-30602001 - Trick Flow® Track Max® Hydraulic Roller Camshafts for GM LS

Camshaft, Hydraulic Roller, Advertised Duration 285/292, Lift .560/.560, Lobe Sep. 114, GM LS, Each

Kit Item Quantity: 1

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ACDelco 12617944 - ACDelco GM Genuine Parts Exhaust Manifold Gaskets

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Kit Item Quantity: 2

Harland Sharp SLS17 - Harland Sharp Original Roller Rockers

Harland Sharp SLS17 - Harland Sharp Original Roller Rockers

Rocker Arms, Pedestal Mount, 1.7 Ratio, Aluminum, Roller Rockers, Chevy, LS, Set

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Kit Item Quantity: 2

Instructions & Calculators

Charts & Guides for Part Number TFS-K305-455-425

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