6771143350 Dyno Tested LS3 DBW 430HP with front accessory drive system and 4L65E 4 speed A/T transmission.

Ohio Speed Shops engine packages are built as ordered so we can provide you personalized options and service.

Ohio Speed Shops Dyno Tested LS3 430HP Engine Package Includes:

• FREE 48 State Truck Freight Shipping
• Initial engine break-in on dyno prior to test and tuning.
• Engine Dyno Tested and Tuned.
• GM Chevrolet Performance engine controller package, ECU, engine harness, sensors and DBW gas pedal.
• GM OE black plastic intake manifold.
• GM 90mm DBW throttle body.
• GM 12576341 EV6 42lbs Injectors.
• Installed Holley 20-185 Mid-Mount Serpentine Drive System A/C, GM Type II P/S pump & 150amp Alt.
• Your choice of engine block color: natural, black, Chevy orange or bright red.
• New PMGR Starter with bolts
• Your choice of oil pan: Holley 302-1, Holley 302-2, Holley 302-3, GM F/body, GM C6, Chevy Performance Musclecar Pan.

Engine Specifications:

• Power: 430 HP @ 5900 RPM, 425 ft. lbs. of torque @ 4600 RPM.
• Brand New GM LS3 crate engine.
• Engine size: 376 CID 6.2L.
• Bore / Stroke: 4.065” x 3.622”
• Engine block: Cast Aluminum.
• Camshaft: Hydraulic Roller, Duration 204I / 211E, Lift .551I / .522E, LSA 117.5.
• Compression Ratio: 10.7:1
• Recommended Fuel: 91 Octane
• Maximum Recommended RPM: 6600

GearStar Level 3 GM 4L65E Performance Transmission

• Custom built and stalled torque 12” high performance furnace brazed converter based on your vehicle’s weight, rear diff ratio, tire size and driving/usage type.
• Rated for up to 500HP and 500 ft-lbs of torque.
• Gear ratios: 1st: 3.06, 2nd: 1.62, 3rd: 1.00, 4th: 0.70.
• Fully dyno tested and break-in run equivalent of 100 miles.
• Heavy duty new internals.
• High capacity upgraded pump assembly.
• New internal wiring, solenoids and switches.
• 6AN inlet and outlets fittings installed in trans case.
• Universal Hayden 20,000 BTU cooler with 6AN inlet and outlets.
• Transmission mount.
• Transmission dipstick and tube not included.
• GM Chevrolet Performance trans controller package.
• Flexplate, crank bolts, converter bolts and trans to engine bolts.
• Complete installation instruction and maintenance manual.
• Shipped with 8QT of synthetic ATF in trans and 3 extra bottled quarts.
• No transmission core/exchange charges.

Engines are built as ordered so changes can be made such as: engine trim, serpentine drive configuration, engine paint, oil pan, etc.