Hawks Motorsports offers our clients this B400FKTKX BluePrint Engines GM Small Block Compatible 400 c.i. Engine and TKX Manual Transmission 500 Horsepower Standard Edition Builder Series Polished Pulley Kit Fuel Injected for customers looking for a complete high-performance drivetrain package combining big small block torque, modern fuel injection, and a performance 5-speed manual transmission. This engine and transmission combination is designed for classic muscle car restorations, street performance builds, pro-touring vehicles, and custom applications requiring strong horsepower, reliability, and modern drivability.

The B400FKTKX features a 400 cubic inch GM Small Block compatible engine producing 500 horsepower and 500 ft.-lbs. of torque. This fuel-injected performance package combines a powerful stroker-style small block platform with a Tremec TKX manual transmission, delivering excellent throttle response, strong acceleration, and overdrive capability for improved highway cruising.

Built around a high-performance small block platform, this 400 c.i. engine features a high-strength cast iron block, 4.125-inch bore, 3.750-inch stroke forged steel crankshaft, forged pistons, forged connecting rods, aluminum cylinder heads, hydraulic roller camshaft, 1-piece rear main seal, and 4-bolt main configuration. The multi-port fuel injection system provides modern engine management, improved starting, consistent fuel delivery, and dependable street performance.

The included TKX manual transmission provides a durable 5-speed overdrive solution designed for high-performance street applications. The overdrive gear helps reduce engine RPM during highway driving while maintaining strong performance capability. The polished pulley kit adds a clean, finished appearance for custom engine compartments.

The B400FKTKX is designed for builders who want a complete engine and transmission package instead of sourcing individual drivetrain components separately. Verify vehicle fitment, clutch system requirements, transmission tunnel clearance, driveshaft dimensions, wiring requirements, cooling system compatibility, fuel system requirements, and accessory clearance before installation.

Key Features:

• Part number B400FKTKX
• BluePrint Engines GM Small Block compatible drivetrain package
• Includes 400 c.i. fuel-injected performance engine and TKX manual transmission
• Rated at 500 horsepower
• Rated at 500 ft.-lbs. torque
• Standard Edition Builder Series configuration
• Multi-port fuel injection system
• Polished pulley kit included
• High-strength cast iron engine block
• 4.125-inch bore
• 3.750-inch stroke forged steel crankshaft
• Forged pistons
• Forged connecting rods
• Aluminum cylinder heads
• Hydraulic roller camshaft
• 1-piece rear main seal
• 4-bolt main block configuration
• Includes Tremec TKX 5-speed manual transmission package
• Overdrive manual transmission for improved highway cruising
• Designed for restoration, street performance, and pro-touring applications

Fitment Applications:

GM Small Block Compatible Applications:

• Chevrolet Small Block V8 custom engine builds
• Classic muscle car restorations
• Performance street vehicles
• Pro-touring vehicles
• Custom hot rods
• Engine swap applications requiring GM Small Block architecture

Common Vehicle Applications:

• Chevrolet Camaro custom builds
• Chevrolet Chevelle custom builds
• Chevrolet Nova custom builds
• Chevrolet Corvette custom builds
• Chevrolet C10 and truck performance builds
• Custom GM vehicles requiring a fuel-injected manual transmission drivetrain package

Fitment Note:
Verify engine compartment clearance, transmission tunnel clearance, crossmember requirements, driveshaft length, clutch system requirements, wiring integration, shifter location, exhaust clearance, and vehicle-specific installation details before ordering.

Installation Notes:

• This listing is for a complete engine and TKX manual transmission package.
• Verify all included components before installation.
• Vehicle-specific installation parts may be required depending on application.
• Driveshaft modification or replacement may be required.
• Verify transmission crossmember and transmission tunnel compatibility before installation.
• Confirm clutch pedal assembly, hydraulic clutch system requirements, and shifter location before installation.
• Fuel injection installation requires proper fuel pressure, fuel delivery components, wiring integration, and ECU placement.
• Verify radiator clearance, cooling system requirements, header fitment, and accessory clearance.
• Additional wiring may be required for vehicle-specific gauges, accessories, and charging systems.
• Professional installation is recommended for custom drivetrain conversions.
• Follow manufacturer break-in procedures and maintenance recommendations.
• Do not install until all vehicle compatibility requirements have been confirmed.