7.4L V8 LSX 454

BUILT WITH
BIG-BLOCK POWER

7.4L LSX Small-block V8 Engine from GM Powertrain
Horsepower:  495-505 hp (369-kW-377 kW) @ 5400 rpm
Torque:  500-515 lb-ft (678 Nm- 698 Nm) @ 4400 rpm
Cylinders:  8
Fuel Type:  PREMIUM GASOLINE RECOMMENDED

OEM LSX 454 Features
& Specifications

Lighter and more compact than an original Big-Block 454, the LSX 454 is filled with a super-tough rotating assembly and features a pair of our deep-breathing CNC’d ported cylinder heads.

TYPE: 7.4L Gen-IV V8 Small-Block
DISPLACEMENT: 7400 cc (454 ci)
ENGINE ORIENTATION: NA
COMPRESSION RATIO: 10.0:1
VALVE CONFIGURATION: Overhead valves
VALVES PER CYLINDER: Two
VALVE LIFTERS: Hydraulic roller
FIRING ORDER: 1-8-7-2-6-5-4-3
BORE X STROKE: 4.185 x 4.125in. (106.3 x 104.8 mm)
FUEL SYSTEM: PFI
FUEL TYPE: Premium recommended
MAXIMUM ENGINE SPEED: 5400 RPM
APPLICATIONS: OEM TEST UNIT*
HORSEPOWER: 495-505 hp (369-kW-377 kW) @ 5400 rpm
TORQUE: 500-515 lb-ft (678 Nm- 698 Nm) @ 4400 rpm
BLOCK: LSX Cast Iron
CYLINDER HEAD: Cast Aluminum
INTAKE MANIFOLD: Composite PFI – L96
EXHAUST MANIFOLD: NA
MAIN BEARING CAPS MATERIAL: Steel
CRANKSHAFT: Forged Steel
CAMSHAFT: Steel
CONNECTING RODS: 4340 Forged
*Actual power levels may vary depending on OEM calibration and application.

CONTACT US

Become A
Partner

GM PRIVACY STATEMENT

This contact form is intended for current and prospective U.S. and international business customers in search of GM engine and/or transmission solutions. If you are looking for parts, service, or GM vehicle support, please click here.

This contact form is intended for current and prospective U.S. and international business customers in search of GM engine and/or transmission solutions. If you are looking for parts, service, or GM vehicle support, please click here.

COUNTRY *
STATE (If In U.S.)
CITY (If In U.S.)

* indicates a required field

Our Brands

Vehicle Support

OEM & AFTERMARKET PARTS

Fleet Business Customers

Marine

Industrial

On-Road

Off-Road

Products

About Us

Become A Partner

©2020 General Motors Copyright & Trademark Privacy Statement

The information contained on this website is proprietary information of General Motors protected by trademark, copyright, and other intellectual property laws. By using this site, you acknowledge and agree that, other than downloading or printing a single copy of a particular work for your own personal use, you are expressly prohibited from reproducing, distributing, selling, or displaying any of the works contained within the website in any other manner without the express written permission of General Motors.