Description
LT1 Wet Sump Performance Crate Engine
P/N 19431953
455 hp @ 6,000 rpm / 455 lb.-ft. @ 4,400 rpm
For use with Connect & Cruise 8-speed automatic package.
LT1 6.2L Wet Sump Tech Specs:
Part Number: (wet sump)
Engine Type: Direct Injection spark ignition Gen V Small Block V-8
Displacement (cu in): 376 cu in 6.2L
Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
Block (P/N 12619171): Cast-aluminum with 6-bolt nodular iron main bearing caps
Crankshaft: Forged Steel
Connecting Rods: Forged powdered metal
Pistons (P/N 12662802): Hypereutectic aluminum
Camshaft Type (P/N 12629512): Billet steel roller
Valve Lift (in): 0.561″ intake / 0.531″ exhaust
Camshaft Duration (@0.050 in): 242° intake / 244° exhaust
Cylinder Heads (P/N 12678633): Aluminum, rectangular port D/I
Valve Size (in): 2.130″ intake / 1.590″ exhaust
Compression ratio: 11.5:1
Rocker Arms (P/N 12619829 int): Investment-cast, roller trunnion
Rocker Arms (P/N 12619829 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.81:1
Recommended Fuel: Premium pump
Maximum Recommended RPM: 6600
Reluctor Wheel: 58x
Balanced: Internal
Installation Notes:
- Engines shipped with high-pressure direct-injection fuel pump installed
- Assembly does not include electronics
- Use LT1 Controller Kit, P/N 19433247 for engine operation with 8L90-E 8-speed automatic transmission or P/N 19355458 for 4L70-E 4-speed automatic AND T56 6-speed manual transmissions – Kits include electronic throttle pedal, which is required for throttle input to the ECU
- Intended for pre-1976 street vehicles, or any off-road vehicle
- Not intended for marine applications
- Front-End Accessory Drive Kit: For LT1 P/N 19355405 use P/N 12678595 FEAD w/o air
and P/N 12678596 A/C add-on kit - 8-bolt crankshaft flange
- Shipped with 14″ flexplate
Replaces old P/N 19355405 and 19332312 and 19418843
