7.4L V-8 LSX 454 Small-Block Engine

7.4L V-8 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 V-8 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: Port Fuel Injection

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.

7.4L V-8 LSX 454

BUILT WITHBIG-BLOCK POWER

7.4L V-8 LSX 454 Features& Specifications

BUILT WITH
BIG-BLOCK POWER

7.4L V-8 LSX 454 Features
& Specifications