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BTR 5.3L Hot Rod 520 HP Power Packages 5.3LHR520PP
Part Number: BTC-5-3LHR520PP
BTR 5.3L Hot Rod 520 HP Power Packages
Top End Kits, 5.3L Hot Rod 520HP Power Package, Cylinder Heads, Intake Manifold, Cam/Lifters, Pushrods, Gaskets, Fuel Rail Kit, GM, LS, Kit
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Estimated Ship Date: Nov 11, 2026 Would you rather pick it up?
Kit/Combo Contents
BTR Multi-Layer Head Gaskets BTR-10046-2
Head Gaskets, Multi-Layer, Steel, 4.10 in. Bore, 0.051 in. Compressed Thickness, 5-Layer, Chevy, 6.0L/6.2L, LS3/L99, L76/L77, L92/L96/L9H/L94, Pair
Kit Item Quantity: 1
BTR Canted Valve LS Cylinder Heads BTR-CVH1C-6A
Cylinder Head, Canted Valve LS1, Assembled, Aluminum, 63cc Chamber, 250cc, Hydraulic Roller, Cathedral Port, 0.660 in. Max Lift, Chevrolet, Each
Kit Item Quantity: 2
BTR Camshafts BTR-HOTROD
Camshafts, BTR Camshafts, Hydraulic Roller, OE Roller, 0.619 in. Intake Lift, 0.607 in. Exhaust Lift, 114 Degree Lobe Separate, Chevrolet, Each
Kit Item Quantity: 1
BTR Multi-Layer Header Gaskets BTR17944-2
Header and Exhaust Manifold Gaskets, Multi-Layer Steel, 1.870 in. Diameter Round Port, Chevy, Small Block, Gen III/IV LS, Sold as a Pair
Kit Item Quantity: 1
BTR Lifter Guides BTR95365-4
Lifter Guide, Hydraulic Roller Style, Plastic, Chevrolet, LS/LT, Non AFM/DOD Engines, Set of 4
Kit Item Quantity: 1
BTR Trinity Fuel Rail Kits FRK-02
Fuel Rails, Equalizer Billet Aluminum Fuel Rail, for V2 Trinity Intake, Black Anodized, Kit
Kit Item Quantity: 1
Brian Tooley Racing Pushrods, Valvetrain PR7875375-8
BTR CHROMOLY ONE-PIECE PUSHROD - 7.875 LONG - 3/8 DIAMETER - .080 WALL - SET OF 8
Kit Item Quantity: 1
Brian Tooley Racing Pushrods, Valvetrain PR7925375-8
BTR CHROMOLY ONE-PIECE PUSHROD - 7.925 LONG - 3/8 DIAMETER - .080 WALL - SET OF 8
Kit Item Quantity: 1
BTR Trinity Series Intake Manifolds TRA-1-BLK-P105
Intake Manifold, Trinity Series, Cathedral Port LS1/LS2/LS6, Multi-port, Standard Deck, Aluminum, Black Base, Black Powdercoat Plenum, Chevy, Each
Kit Item Quantity: 1
BTR Delphi LS7 Hydraulic Roller Lifter Sets X12499225-16
Lifters, Delphi LS7 Hydraulic Roller, 0.842 in. O.D., Chevrolet, Set of 16
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
5.3LHR520PP
Part Type:
Product Line:
Summit Racing Part Number:
BTC-5-3LHR520PP
Item Number:
8922269
Cylinder Heads Included:
Yes
Camshaft Included:
Yes
Camshaft Type:
Hydraulic Roller Tappet
Duration at 050 inch Lift:
217 int./24X exh.
Valve Lift with Factory Rocker Arm Ratio:
0.619 int./0.607 exh.
Intake Manifold Included:
Yes
Fuel Delivery Style:
Fuel injected
Carburetor Included:
No
Throttle Body Included:
No
Fuel Rails Included:
Yes
Fuel Injectors Included:
No
Intake Material:
Aluminum
Intake Color:
Black
Intake Style:
Electronic fuel injection
Intake Manifold Name:
BTR Trinity Cathedral
Timing Chain and Gears Included:
No
Lifters Included:
Yes
Gaskets Included:
Yes
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Cylinder Head Color:
Natural
Combustion Chamber Volume (cc):
63
CNC-Machined Combustion Chamber:
Yes
Combustion Chamber Style:
Heart
Intake Runner Volume (cc):
250cc
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Intake Port Location:
Standard
Intake Port Shape:
Cathedral
Exhaust Port Shape:
D-port
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
Intake Valves Included:
Yes
Intake Valve Diameter (in.):
2.125 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.590 in.
Intake Valve Angle:
11
Exhaust Valve Angle:
13
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.306 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Titanium
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Rocker Arms Included:
No
Rocker Arm Studs Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Pushrods Included:
Yes
Valve Covers Included:
No
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
No
Valve Seats Machined:
Yes
Valve Seat Machine Style:
5-angle intake/3-angle exhaust
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.
BTR 5.3L Hot Rod 520 HP Power Packages
BTR 5.3L hot rod 520 hp power packages are engineered, naturally aspirated engine upgrade kits designed to push a small-bore GM 5.3L LS engine past the 520 hp threshold. With a more aggressive combination and a powerband that keeps pulling well into the upper RPM range, these power packages from Brian Tooley Racing bridge the gap between a fun street build and something that feels right at home making regular trips down the track.
* Performance specs:
-- Horsepower: Appx. 523.9 hp at 7,250 rpm
-- Torque: Appx. 407.3 lbs.-ft. at 6,075 RPM
-- Best Suited For: Hot rods, muscle cars, pro-touring setups, street machines, and track days
* Rather than random components, the kit provides a matched top-end system, including:
-- Cylinder heads: BTR CV1 Canted Valve Cylinder Heads
-- Camshaft: Application-specific BTR Hot Rod Camshaft
-- Intake manifold: BTR TR1 Trinity Intake Manifold
-- Fuel delivery: BTR Fuel Rails
-- Valvetrain and internals: Delphi LS7 Lifters, BTR Lifter Trays, and BTR Chromoly One-Piece Pushrods
-- Gaskets: BTR Multi-Layer Steel (MLS) Head Gaskets and Header Gaskets
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