Hawks Motorsports offers the BluePrint Engines B632FK4L8 GM Big Block Compatible 632 C.I. Pro Series Engine and 4L80E Automatic Transmission Package, delivering an impressive 815 horsepower and 775 lb-ft of torque in a complete Builder Series drivetrain package. Pairing BluePrint's legendary 632 cubic inch Pro Series engine with a fully assembled 4L80E overdrive automatic transmission, this package combines modern electronic fuel injection, premium polished front accessories, and exceptional reliability for high-performance street, Pro Touring, and street/strip applications.

Built around BluePrint's high-strength cast iron tall deck block, the engine features a forged steel crankshaft, forged 6.635-inch H-beam connecting rods, forged dome pistons, BluePrint aluminum cylinder heads, and a hydraulic roller camshaft. The 4.600-inch bore, 4.750-inch stroke, and 11.0:1 compression ratio provide massive torque throughout the RPM range while maintaining excellent drivability through the Holley Sniper Stealth 4500 EFI system.

The Standard Edition Builder Series includes a Holley Sniper Stealth 4500 electronic fuel injection system, satin single-plane intake manifold, polished front accessory drive, MSD-style Ready-to-Run distributor, electric fuel pump, and complete accessory package. Electronic fuel injection provides excellent cold starts, smoother idle quality, improved throttle response, altitude compensation, and simplified tuning compared to traditional carbureted systems.

Included is a professionally assembled 4L80E automatic transmission package featuring an electronic transmission controller, lockup torque converter, flexplate, starter, and overdrive gearing for comfortable highway cruising. Every BluePrint Builder Series package is precision machined, professionally assembled, dyno tested, and backed by BluePrint Engines' warranty.

Key Features:

• SKU: B632FK4L8
• GM Big Block Compatible 632 C.I. Pro Series Engine
• Complete Engine & 4L80E Automatic Transmission Package
• 815 Horsepower
• 775 lb-ft Torque
• Standard Edition Builder Series
• Holley Sniper Stealth 4500 Electronic Fuel Injection
• Polished Pulley Kit
• High-Strength Cast Iron Tall Deck Block
• Manufactured and Machined in the USA
• 4-Bolt Main Block
• 1-Piece Rear Main Seal
• Mechanical Fuel Pump Provision
• 4.600" Bore
• 4.750" Stroke
• Forged Steel Crankshaft
• Forged 6.635" H-Beam Connecting Rods
• Forged Dome Pistons
• Internally Balanced Rotating Assembly
• 11.0:1 Compression Ratio
• BluePrint Aluminum Cylinder Heads (PS8012)
• Hydraulic Roller Camshaft
• Holley Sniper Stealth 4500 EFI
• Single Plane Intake Manifold
• Ready-to-Run Distributor
• Harmonic Balancer
• Spark Plugs & Wires Included
• Thermostat & Housing Included
• Oil Pan
• Timing Cover
• Valve Covers
• BluePrint Dipstick
• Dyno Tested Before Shipment

Polished Pulley Kit Includes:

• Reverse Rotation Short Water Pump
• 140-Amp One-Wire Alternator
• Peanut Style A/C Compressor
• Type II Power Steering Pump with Remote Reservoir
• Complete Polished Front Accessory Drive

4L80E Transmission Package Includes:

• Complete 4L80E Automatic Transmission
• Electronic Transmission Controller
• Lockup Capability
• 3800+ RPM Stall Torque Converter
• Flexplate
• Starter

4L80E Gear Ratios:

• 1st: 2.482
• 2nd: 1.482
• 3rd: 1.000
• 4th: 0.750
• Reverse: 2.077

Fitment Applications:

Designed for custom GM Big Block Chevrolet compatible applications:

• Chevrolet Camaro
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet Corvette
• Chevrolet El Camino
• Chevrolet Impala
• Chevrolet C10 / C20 / C30 Trucks
• Street Rods
• Restomod Builds
• Pro Touring Vehicles
• Classic Muscle Cars
• Street/Strip Applications
• Custom Performance Vehicles

Verify engine bay clearance, transmission tunnel clearance, driveshaft length, crossmember compatibility, steering clearance, header fitment, and cooling system capacity before installation.

Installation Notes:

• Complete engine and transmission package.
• Designed for non-emissions-controlled vehicles.
• Tall deck block is approximately .400" taller and wider than OEM big block dimensions.
• Cylinder heads feature .300" raised exhaust ports requiring compatible headers.
• Holley Sniper Stealth EFI requires a high-pressure EFI fuel system and proper electrical connections.
• Electronic 4L80E transmission controller included.
• Initial Timing: 10°-16° BTDC
• Total Timing: 32°-34°
• Recommended Fuel: 91+ Octane
• Recommended Oil: BluePrint 10W30
• Oil Capacity: 8 Quarts
• Professional installation and EFI calibration are strongly recommended.