19370412 515 HP LS3 6.2L With a Carbureted Intake Manifold Chevrolet Performance Engine

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Item #: 19370412
Reg. Price: $9,755.61
Our Price: $8,004.49


19370412 515 HP LS3 6.2L With a Carbureted Intake Manifold Chevrolet Performance Engine 

The LS3 gets a big cam and carbureted intake manifold for an additional 85 horsepower!

19244552 a race-proven camshaft helps build huge powerin this carbureted combo!
By combining traditional carbureted aspiration with the high-tech attributesof the LS platform, we’ve developed the ultimate modern engine for your vintage car or truck—or race car.
It’s the LS376/515!
With the LS3 engine as its foundation, the LS376/515 crate engine uses the regular-production bottom end, including an aluminum block with six-bolt cross-bolted main caps, a Corvette oil pan and LS3 cylinder heads with high-flow, rectangular-port intake passages. To that, we swap the fuel injection system for a high-rise intake manifold of our own design, a 770-cfm carburetor (sold separately) and our race-tested ASA Hot Cam, P/N 12480110.
The new combination is worth 515 horsepower at a stellar 6500 rpm and469 lb-ft of grin-inducing torque at 5000 rpm. Compared to the regular-production LS3 and even our LS3-based LS376/480 crate engine, the ASA Hot Cam gives this combination much more camshaft duration to hold open the valves longer. It’s a horsepower-building camshaft designed for the wide-open, high-rpm world of circle track racing and it means big power for this great crate engine—whether it’s used on the street or track.

Part Number: 19244552
Engine Type: LS Series Gen IV small-block V8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.06 x 3.62 (103.25 x 92mm)
Block (P/N 12584727): Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12617570): Powdered metal
Pistons (P/N 19165089): Hypereutectic aluminum
Camshaft Type (P/N 12480110): Hydraulic roller
Valve Lift (in): .525" intake / .525" exhaust
Camshaft Duration (@.050 in): 226° intake / 236° exhaust
Cylinder Heads (P/N 12598594): LS3 rectangle port, as cast with 68cc chambers
Valve Size (in): 2.16 int / 1.59 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12569167 int): Investment cast, roller trunnion
Rocker Arms (P/N 10214664 exh): Investment cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: 92 octane
Maximum Recommended rpm: 6600
Reluctor Wheel: 58X
Balanced: Internal


Terms and Conditions
Warranty Information
GM Performance Crate Engine Start-up Instructions
Click here to download Product Information Sheet


This engine is eligible for a $500 rebate when you also purchase:

19329795 T56 Manual Transmission and
19301625 Transmission Installation Kit

Click here for Rebate Information

Still have questions or want more information, Please call us at 847-752-6172




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Product Accessories for Chevrolet Performance LS376/515 HP Crate Engine 19370412