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LS3 6.2L CrateEngine old 19244097 new 19258770
Description
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19258770 replaces 19244097 LS3 6.2L GMPP CrateEngine.The Hottest New Small-block now available in a box What's Hot?
· 430 horse
· 376 cubes
· 24-month GMPP warranty
Starting with the '08 Corvette, the world was first introduced to GM's latest small block V8 creation – the 6.2-liter LS3. A continuation of the industry leading V8 engines from GM Powertrain, the LS3 kicks out 430 horsepower and 424 lb.-ft. of torque. (In the Corvette, those numbers go to 436 hp and 428 lb.-ft. of torque with the optional dual mode exhaust system.)
It's a brute of a small block with 376 ready cubes at your beckon call.
The LS series of engines from GM Powertrain have broken new ground for efficiency and performance from a pushrod platform engine. The LS3 continues the engineering breakthroughs with revised cylinder heads featuring rectangle ports borrowed from the vaunted LS7. The heads feature 63 cc combustion chambers, 2.16-inch intake valves, and 1.59-inch exhaust valves.
The camshaft features an aggressive .551-inches of lift on the intake side with less overlap (than the LS2) for even greater airflow and power. Rocker arms with a 1.7:1 ratio sit on top of the heads.
In the bottom end, the aluminum 6-bolts/main block features 4.06-inch bores and 3.62-inch stroke. A nodular iron crankshaft, powdered metal rods, and aluminum pistons (10.7:1 compression ratio) round out a rev-happy short block. Red line for the LS3 comes at 6600 rpm, and you will get there very quickly.
With a high-tech GM foundation, aluminum block, and high flowing rectangular-port heads, the LS3 is the new standard in the small block world. The LS3 helps power the new Corvette to a top speed of 190 mph. What will it power you to?
LS3 6.2L Tech Specs:
| Part Number: | 19291992 | | Balanced: | Internal | | Block Part Number: | 12584727 | | Block Type: | Cast aluminum with 6-bolt main caps | | Bore X Stroke (in): | 4.06 x 3.62 (103.25 x 92mm) | | Camshaft duration (@.050 in): | 204 degree intake / 211 degree exhaust | | Camshaft Part Number: | 10.7:1 | | Connecting rods (P/N 12617570): | Powdered metal | | Crankshaft (P/N 12597569): | Nodular Iron | | Cylinder Heads (P/N 12598594): | LS3 rectangle port: as cast with 68cc chambers | | Displacement (cu in): | 376 cu in (6.2L) | | Engine type: | LS Series Gen IV small-block V-8 | | Maximum recommended rpm: | 6600 | | Piston Part Number | 19165089 | | Piston Type: | Hypereutectic aluminum | | Recommended fuel: | 92 octane | | Reluctor wheel: | 58x | | Rocker arm ratio: | 1.7:1 | | Rocker arms exhaust Part Number: | 10214664 | | Rocker arms exhaust Type: | Investment cast, roller trunnion | | Rocker arms intake Part Number: | 12569167 | | Rocker arms intake Type: | investment cast, roller trunnion | | Valve Lift (in): | .551 intake / .552 exhaust | | Valve size (in): | 2.16 intake / 1.59 exhaust | 
Terms and Conditions
Warranty Information
GM Performance Crate Engine Start-up Instructions
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Products Accessories for LS3 6.2L CrateEngine old 19244097 new 19258770
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