[GARBAJ]

I've searched, but maybe my search words are rotten. Has anyone detailed each difference between the two? Thanks all.

 

[Luna.]

LS9:

2010 "LS9" 6.2L V-8 SC ( LS9 ) 6/5/2009
Type: 6.2L Gen IV V-8 Small Block
Displacement: 6162 cc (376 ci)
Engine Orientation Longitudinal
Compression ratio: 9.1:1
Valve configuration: Overhead valves (2 valves per cylinder)
Assembly site: Wixom, MI
Valve lifters: Hydraulic roller
Firing order: 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x stroke: 103.25 x 92mm
Fuel system: Sequential fuel injection
Fuel Type: Premium required
Maximum Engine Speed: 6600 RPM
Emissions controls: Catalytic converter
Three-way catalyst
Positive crankcase ventilation
Valves per cylinder 2
Bore Center (mm) 111.76
Applications: Horsepower: hp ( kw )
Chevrolet Corvette ZR1 638 hp ( 476 kW ) @ 6500rpm SAE CERTIFIED
Applications: Torque: lb-ft ( Nm )
Chevrolet Corvette ZR1 604 lb-ft ( 819 Nm ) @ 3800 rpm SAE CERTIFIED
MATERIALS
Block: Cast aluminum
Cylinder head: A356-T6 rotocast cast aluminum
Intake manifold: Cast aluminum
Exhaust manifold: Stainless steel
Main bearing caps: Forged steel
Crankshaft: Forged steel
Camshaft: Hollow steel
Connecting rods: Forged Titanium
Additional features: 2.3 L/rev Supercharger
Integrated dual coolant to air intercooler
Titanium inlet valve
Forged Pistons
Piston oil spray cooling
Hollow steel exhaust valve
Direct mount ignition coils


LSA:

2010 "LSA" 6.2L V-8 SC ( LSA ) 6/5/2009
Type: 6.2L Gen IV V-8 Small Block
Displacement: 6162 cc (376 ci)
Engine Orientation Longitudinal
Compression ratio: 9.1:1
Valve configuration: Overhead valves (2 valves per cylinder)
Assembly site: Silao, MX
Valve lifters: Hydraulic roller
Firing order: 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x stroke: 103.25 x 92 mm
Fuel system: Sequential fuel injection
Fuel Type: Premium required
Maximum Engine Speed: 6200 RPM
Emissions controls: Catalytic converter
Three-way catalyst
Positive crankcase ventilation
Valves per cylinder 2
Bore Center (mm) 111.76
Applications: Horsepower: hp ( kw )
Cadillac CTSV 556 hp ( 415 kW ) @ 6100 rpm SAE CERTIFIED
Applications: Torque: lb-ft ( Nm )
Cadillac CTSV 551 lb-ft ( 747 Nm ) @ 3800 rpm SAE CERTIFIED
MATERIALS
Block: Cast aluminum
Cylinder head: A356-T6 rotocast cast aluminum
Intake manifold: Cast aluminum
Exhaust manifold: High silicon / high moly cast iron
Main bearing caps: Nodular Iron
Crankshaft: Forged steel
Camshaft: Hollow steel
Connecting rods: Forged powder metal
Additional features: 1.9 L/rev Supercharger
Integrated single coolant to air intercooler
Piston oil spray cooling
Direct mount ignition coils

 

[GARBAJ]

Good man. Thank you. So am I to understand cam and supercharger are it- along with what I consider to be some minor stuff?

 

[Luna.]

Main Bearing Caps, Exhaust Manifold, Connecting Rods, Forged Pistons, Titanium inlet valve, Hollow steel exhaust valve, etc.

Also, note that the differences between the superchargers is NOT limited to only the volume of air per revolution, but also the inter-cooler itself. The LSA is a single unit, while the LS9 runs dual units. Most people I've asked said that the LS9s unit is superior, but one expert said that the LSA was better.

 

[GARBAJ]

Still - not crazy different. I understand so much better, regardless of my propensity to seek it, that a lot of power is available... In other words, it appears that a bunch of doors are open. I'll probably wuss out and just get a little exhaust and cai on... Where I am in life - that is fine - but I love the education...

The main difference - I am surpised about is the bearing caps. Small cost, why? Someone elighten me. It seems easier in the interest of what we call in my business - homogenous parts - to keep them the same. Weird, at least to me....

 

[kgb14]

In table form:

http://www.cadillacforums.com/forum...-differences-between-ls9-lsa.html#post1739022