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LS3 Long Block 6.2L Assembly

LS3 Long Block 6.2L Assembly

Regular price $7,500.00 USD
Regular price Sale price $7,500.00 USD
Sale Sold out
Hp Range

Are you looking for a replacement engine, larger displacement, or just a do-it-yourself project?  We have a variety of Turn Key long blocks that will suit your needs.  All long blocks are hand assembled, torqued to spec, and use all 100% brand new parts. All long blocks include:

  • New GM OEM Oil Pan
  • Harmonic Balancer
  • Front and Rear Engine Covers with Seals
  • Top Engine Valley Cover

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Motor Specs

480 hp Specs

Cubic Inch / LTR's:372 / 6.2

Horsepower: 480

Ft. Lbs. Torque:490

Compression: 10.7.1

Aspiration: Normal

Rev Limit RPM: 6600

Block: Cast Iron

Bore x Stroke: 4.065" x 3.620"

Crankshaft: Nodular Iron

Rods: Forged Powdered Metal

Pistons: Mahle Hypereutectic Alum. 

Heads: Cast Aluminum

Chamber CC:70cc

Intake Port CC: 260cc

Intake Port Style: Rectangle

CNC Ported (Y/N): No

Intake Valves: 2.160" Hollow Stem

Exhaust Valves: 1.590"

Valve Springs: GM Beehive

Retainers: Steel

Rockers: 1.7: 1

Pushrods: 5/16" x 7.400"

Lifters: Delphi Hydraulic Roller

Camshaft: Hydraulic Roller

Timing Chain Set: Single HD Roller

525 hp Specs

Cubic Inch / LTR's:372 / 6.2

Horsepower:525

Ft. Lbs. Torque:495

Compression: 10.7.1

Aspiration: Normal

Rev Limit RPM: 6800

Block: Cast Iron

Bore x Stroke: 4.065" x 3.620"

Crankshaft: Nodular Iron

Rods: Forged Powdered Metal

Pistons: Mahle Hypereutectic Alum. 

Heads: Cast Aluminum

Chamber CC:70cc

Intake Port CC: 260cc

Intake Port Style: Rectangle

CNC Ported (Y/N): No

Intake Valves: 2.160" Hollow Stem

Exhaust Valves: 1.590"

Valve Springs: Double

Retainers: Lightened Chromoly

Rockers: 1.7: 1

Pushrods: 5/16" x 7.400" .080" Wall Chromoly

Lifters: Delphi Hydraulic Roller

Camshaft: Hydraulic Roller

Timing Chain Set: Single HD Roller

565 hp Specs

Cubic Inch / LTR's:372 / 6.2

Horsepower:565

Ft. Lbs. Torque:485

Compression: 10.7.1Aspiration: Normal

Rev Limit RPM: 6800

Block: Cast Iron

Bore x Stroke: 4.065" x 3.620"

Crankshaft: Nodular Iron

Rods: Forged H-Beam

Pistons: Mahle Forged 

Heads: Cast Aluminum

Chamber CC: 68cc

Intake Port CC: 279cc

Intake Port Style: Rectangle

CNC Ported (Y/N): Yes

Intake Valves: 2.160" SS

Exhaust Valves: 1.590" SS

Valve Springs: Double

Retainers: Titanium

Rockers: 1.7: 1

Pushrods: 5/16" x 7.400" .080" Wall Chromoly

Lifters: Delphi Hydraulic Roller

Camshaft: Hydraulic Roller

Timing Chain Set: Single HD Roller

710 hp Specs

Cubic Inch / LTR's:372 / 6.2

Horsepower: 710

Ft. Lbs. Torque: 700

Compression: 9.0:1

Aspiration: Supercharged

Rev Limit RPM: 6600

Block: Cast Iron

Bore x Stroke: 4.060" x 3.620"

Crankshaft: Nodular Iron

Rods: Forged H-Beam

Pistons: Mahle Forged

Heads: Cast Aluminum

Chamber CC: 70cc

Intake Port CC: 260cc

Intake Port Style: Rectangle

CNC Ported (Y/N): No

Intake Valves: 2.160" SS

Exhaust Valves: 1.590" SS

Valve Springs: Double

Retainers: Lightened Chromoly

Rockers: 1.7: 1

Pushrods: 5/16" x 7.400" .080" Wall Chromoly

Lifters: Delphi Hydraulic Roller

Camshaft: Hydraulic Roller

Timing Chain Set: Single HD Roller

Need Specific Specs? Let Us Know