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Charts & Guides for Part Number TFS-K305-455-425
Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck TFS-K305-455-425
Part Number: TFS-K305-455-425
Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck
Head Combo, GenX® Top-End, 455 hp/426 ft.-lbs. Torque, Chevy, 5.3L, Kit
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Kit/Combo Contents
ACDelco 12557840 - ACDelco GM Genuine Parts Harmonic Balancer Fastener Bolts
Harmonic Balancer Bolt, Steel, Flanged Hex, Coarse Thread, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each
Kit Item Quantity: 1
ACDelco 12617944 - ACDelco GM Genuine Parts Exhaust Manifold Gaskets
Exhaust Gaskets, Exhaust Manifold, Chevy, Pontiac, 5.7L, LS, Each
Kit Item Quantity: 2
Harland Sharp SLS17 - Harland Sharp Original Roller Rockers
Rocker Arms, Pedestal Mount, 1.7 Ratio, Aluminum, Roller Rockers, Chevy, LS, Set
Kit Item Quantity: 1
Chevrolet Performance 12498544 - Chevrolet Performance LS1/LS6 Cylinder Head Gasket Kits
Head Gaskets, MLS, 3.910 bore, 0.051 in. Thick, Chevy, LS1, LS6, 5.7L,, Pair
Kit Item Quantity: 1
Chevrolet Performance 17800568 - Chevrolet Performance Head Bolt Kits
Cylinder Head Bolts, Chromoly, Cadmium, Hex, Chevy, LS, Kit
Kit Item Quantity: 2
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
Kit Item Quantity: 1
Trick Flow Specialties TFS-30510001-C00 - Trick Flow® GenX® 205 Cylinder Heads for GM LS 4.8L/5.3L/5.7L (Vortec)
Cylinder Head, GenX® 205, Competition Ported, Assembled, 58cc CNC Chambers, GM LS Vortec, Each
Kit Item Quantity: 2
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
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.
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