Here in this article you will learn about the LS 6 Engine Specs  , Performance,  Cylinder Heads, Cam Specs & More, Let’s discuss the ford LS 6 Engine Specs  , Valvetrain, performance, and Reviews. As it was delivered from the factory, the 5.7L LS6 small block engine is the most potent Gen.

Even Saab and Hummer received some LS love Vortec and LS engines have been the most popular performance and swap engines in recent years, These engines have a high horsepower output and are well suited for modifications Such as Turbos, superchargers and intake systems.

LS 6 Engine Specs

LS6 Block Specs

Displacement 5.7L / 346 cid
Bore Dia. 3.898 in.
Stroke 3.622 in.
Deck Height 9.240 in.
Bore Spacing 4.400 in.
Thrust Bearing Location #3 Main
Main Cap Style 6-Bolt
Main Housing Bore Dia. 2.751 in.
Cam Housing Bore Dia. (2002-03) Bore 1/5 = 2.326, Bore 2/4 = 2.317, Bore 3 = 2.307
Cam Housing Bore Dia. (2003-04) Bore 1/5 = 2.346, Bore 2/4 = 2.326, Bore 3 = 2.307
Cam-to-Crank Centerline 4.914 in.
Casting Number 12561168
Material Aluminum – Sand Cast

Engine Ratings

Compression Ratio 10.5:1
Horsepower Rating 385-405 hp
Torque Rating 385-400 ft./lbs.

LS6 Applications

VIN 8th Digit Year Make Model
S 2001-04 Chevy Corvette Z06
S 2004-05 Cadillac CTS-V

LS6 Cylinder Head Specs

Material Aluminum
Combustion Chamber Volume 65cc
Intake Port Shape Cathedral
Intake Runner Volume 210cc
Exhaust Port Shape D-Port
Exhaust Runner Volume 75cc
Intake Valve Diameter 2.000 in.
Exhaust Valve Diameter 1.550 in.
Cylinder Head Bolt Style Torque to Yield (TTY)
Cylinder Head Bolt Size 1997-2003 (8) M11 x 2 x 155, (2) M11 x 2 x 100, (5) M8 x 1.25 x 45
Cylinder Head Bolt Size 2004 (10) M11 x 2 x 100, (5) M8 x 1.25 x 45
2001-04 Casting Numbers 12564243

LS6 Rotating Assembly Specs

Piston Style Flat Top
Piston Volume 0cc
Wrist Pin Dia.
(2001-late 2004)
0.9449 in (Press Fit)
Wrist Pin Dia.
(Late 2004-05)
0.9435 in (Full Floating)
Connecting Rod Material Powdered Metal
Connecting Rod Style I-Beam
Connecting Rod Length 6.098 in.
Connecting Rod Bolts M9 x 1 x 43
Crankshaft Material Cast Iron
Crankshaft Main Journal 2.559 in.
Crankshaft Rod Journal 2.100 in.
Reluctor Wheel 24X
Flywheel Mounting Flange 0.857 in.
Piston Material Hypereutectic Cast Aluminum Alloy M142

Throttle Body, Fuel Injectors, Oil Pan Specs & More

Throttle Body 78mm, 3-Bolt
Throttle Control Electronic, Drive-by-Wire
Fuel Injector Flow 30 lbs./hr.
Fuel Injector Length (between O-Rings) 2.5 in.
Fuel Injector Connector EV1
PCM Warren
Crankshaft Reluctor Ring 24x
Camshaft Sensor Rear Mount, 1x on Cam
Oil Pan
Bat Wing, Rear Sump
Oil Pan
Rear Sump
Oil Pump Standard Volume
Intake Manifold LS6

LS 6 Engine Specs Review

The LS6 is a high-performance variant of the Gen III LS1 engine that was developed by General Motors. It was first introduced in the 2001 Chevrolet Corvette Z06 and was also used in the Cadillac CTS-V. The LS6 is known for its impressive power output and reliability.

Full review YouTube video check here.

LS 6 Engine Specs FAQ

What engine did The LS6 have?

The 5.7L LS6 V8 engine was Produced briefly by General motors as Part of the Gen III small Block engine family, It was Utilized in Two high performance vehicles the C5 generation Chevrolet Corvette Z06 (C5 generation) And The CTS V (first generation) (C5 generation).

How many cubic inches is LS6?

The LS6 crankshaft uses the same nodular cast iron unit with rolled fillet journals as the LS1 from 1997. The stroke is 92mm (3.62 inches), which makes the LS6’s displacement 345.69 cubes.

What does LS Stand for in LS6?

In an automobile engine LS stands for luxury sports, It is generally utilized in high B end, high performance vehicles such as the Chevrolet, The primary V8 utilized in General Motors’ rear-wheel-drive cars is the LS engine in a chevy.

Is LS1 and LS6 the same?

Although the LS1 and LS6 share a 5.7L displacement each, The LS6’s production engine has a unique block casting that provides greater strength, bay-to-bay breathing ability and other minor differences, The unique LS6 parts include the camshaft, intake manifolds, and heads.

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