Hawks Motorsports offers the BluePrint Engines B598FKB4L8 GM Big Block Compatible 598 C.I. Builder Series Engine and 4L80E Automatic Transmission Package, combining massive big block performance with modern electronic fuel injection, overdrive cruising capability, and a stealth black accessory package. Producing 741 horsepower and 703 lb-ft of torque, this complete drivetrain package is designed for serious street performance, Pro Touring builds, classic muscle cars, trucks, and custom applications where reliability and horsepower are equally important.

The 598 C.I. Standard Edition Builder Series engine features a high-strength cast iron GM Big Block compatible block, BluePrint aluminum cylinder heads, hydraulic roller camshaft, forged crankshaft, forged pistons, and forged connecting rods. The large displacement combination of a 4.600" bore, 4.500" forged stroke crankshaft, and 6.480" forged connecting rods provides the foundation for exceptional torque production and dependable high-performance operation.

This package pairs the fuel-injected 598 cubic inch engine with a complete 4L80E automatic transmission, giving builders modern overdrive performance, electronic control, and lockup capability. The included black pulley kit provides an aggressive engine bay appearance while supplying a complete accessory drive system with alternator, A/C compressor, power steering pump, and reverse rotation water pump.

The B598FKB4L8 includes a Holley Sniper EFI system, intake manifold, Ready-to-Run distributor, electric fuel pump, and complete transmission package with controller, torque converter, flexplate, and starter. BluePrint Engines professionally machines, assembles, and dyno tests each engine before shipment, making this an excellent turnkey solution for high-performance builds.

Key Features:

• SKU: B598FKB4L8
• GM Big Block Compatible 598 C.I. Engine Package
• Complete Engine & 4L80E Automatic Transmission Combo
• 741 Horsepower
• 703 lb-ft Torque
• Standard Edition Builder Series
• Fuel Injected Configuration
• Black Pulley / Accessory Kit
• High-strength cast iron block
• Manufactured and machined in the USA
• Standard deck block
• 4-bolt main design
• 1-piece rear main seal
• Mechanical fuel pump provision
• 4.600" Bore
• 4.500" Stroke
• Forged crankshaft
• Forged pistons
• Forged 6.480" H-beam connecting rods
• Internally balanced rotating assembly
• 10.5:1 Compression Ratio
• BluePrint aluminum cylinder heads
• Hydraulic roller camshaft
• EFI fuel system
• Holley Sniper 2 EFI system
• Aluminum intake manifold
• Pro Series Ready-to-Run distributor
• Electric fuel pump
• Harmonic balancer included
• Timing cover installed
• Valve covers installed
• Oil pan installed
• Oil pump installed
• Spark plugs included
• Spark plug wires included
• Thermostat and housing included

Black Pulley Kit Includes:

• Reverse rotation short water pump
• 1-wire 140 amp alternator
• Peanut-style A/C compressor
• Type II power steering pump with remote reservoir

Transmission Package Includes:

• Complete 4L80E automatic transmission
• Electronic transmission controller included
• Lockup capability
• 3800+ stall torque converter
• Flexplate included
• Starter included

4L80E Gear Ratios:

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

Fitment Applications:

Designed for custom GM Big Block 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
• Custom hot rods
• Street/strip applications

Verify engine bay clearance, transmission tunnel clearance, driveshaft length, crossmember requirements, fuel system compatibility, and accessory clearance before installation.

Installation Notes:

• Complete engine and transmission package.
• Requires compatible EFI fuel system wiring and power connections.
• 4L80E requires electronic controller installation.
• Requires compatible driveshaft and transmission crossmember.
• Torque converter designed for performance street applications.
• Verify front accessory drive clearance before installation.
• Low-profile black accessory drive fits many applications, but additional hose routing, wiring, or fabrication may be required depending on vehicle.
• Requires compatible exhaust headers.
• Recommended fuel: 91+ octane.
• Professional installation and tuning recommended.