CPSLS34L65E-MCX Pace Muscle Car LS3 430HP Engine with 4L65E Transmission Combo Package.

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

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Pricing: $13,200.00

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Limited Time $500.00 Chevrolet Performance Mail in Rebate! Click Here to view or download mail in rebate form.

New Connect and Cruise Packages

Chevrolet Performance is breaking new ground with the launch of the new Connect-and-Cruise crate powertrain systems. They’re factory-engineered engine-and-transmission combinations that include all the electronic control modules, wiring harnesses and other key components you need with the simplicity of one part number. The CPP engineers matched the engines and transmissions for optimal performance and durability, so you can wring out all the horsepower from them with total confidence. The specially calibrated controllers are designed for retrofit installation in older vehicles, for easier and quicker installation and operation, without the need for third-party tuning.

Pace Muscle Car LS3 430HP Engine and 4L65E Package Includes:
• GMP-19301326-MC Prepped & Primed LS3 430HP Engine with Installed Holley muscle car oil pan
• CPP Engine Controller and Harness
• CPP 4L65E Transmission
• CPP Performance SuperMatic 2400-2800 Stall Torque Converter
• CPP Transmission Controller
• Trans to Engine Bolt Package
• Torque Converter to Flexplate Bolt Package
• Trans Inspection Dust Sheilds
• Locking Trans Dipstick & Tube
• 14 Quarts Transmission Fluid
• Trans Cooler Lines -6AN adapter fittings
Pace Pass-Thru Can & Tach lead harness

GMP-19301326-MC Pace LS3 430HP Base Muscle Car Swap Engine with Installed Holley Swap Oil Pan.

As delivered, the Pace LS376/430 Muscle Car Engine is configured with popular upgrades and deletions that customers have previously requested.

Derived from customer request Pace Performance delivers the popular LS3 in a new muscle car “swap ready” crate engine. Pace removes the current Chevy production oil pan and installs a low profile LS swap oil pan. Most aftermarket serpentine accessory drive systems include a water pump and balancer so these are also removed. Since the ATI balancers are used in most serp. drive kits Pace indexes and drills the crankshaft for pin/keyway needed for the ATI balancer. Pace then installs the HeatShield Products I-M Shield™ intake manifold heat barrier for consistent intake air temps. Also included is HP Tuner’s 6110 code scanner/reader which can be upgraded for custom tuning with purchase of additional software. Also available in 480HP & 525HP versions and the Connect & Cruise powertrain packages.

GMP-19301326-MC - Pace Performance LS3 430HP Muscle Car Crate Engine Includes:
• Pace engine prep and oil priming service. Click Here for more information.
HP Tuner's HPT-6110 code scanner/reader
Installed Holley Muscle Car Swap Oil Pan (see additional images for dimensions image)
Installed Heatshield Products Intake Manifold heat shield.
• Crank indexed & drilled for ATI balancer pin (pin included but not installed)
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Exhaust Manifolds
• Intake, Injectors and Throttle Body
• 14” Auto Trans Flexplate
• Front timing cover
• Passenger Side RH Oil Dipstick and Tube
• Includes Oil filter and Pace Performance recommend break in oil: Shipped in Pan

General Motors limited 2 year / 50,000 mile parts & labor warranty. Click Here to view or download warranty form.

Power: 430 HP @ 5900 RPM, 424 ft. lbs. of torque @ 4600 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.060” x 3.620”
Compression Ratio: 10.7:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .551” Intake / .522” exhaust
Cam Duration @ .050”: 204 deg. Intake / 211 deg. Exhaust
Lobe Separation: N/A
Cylinder Heads: Aluminum L92 style ports
Combustion Chamber: 68cc
Valves: 2.165” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6600

Chevrolet Performance 4L65E Transmission

Similar in design to the 4L60E This 4L65E electronically controlled four speed overdrive transmission is suitable for "LS" series V8 engines producing up to 430 Ft. Lbs of torque.


• Heavy duty upgrades including 5 pinion gearsets
• Heat treated stator shaft splines
• Induction hardened turbine shaft
• Seven-plate clutch packs
• Shot peened output shaft
• Revised valve body calibration
• Gear ratios: 1st-3.06, 2nd-1.62, 3rd-1.00, 4th .070

Application List


Shipping Information

  • Item Requires Shipping
  • 800.0 lbs.
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

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