4 Piston Racing K24-K400 2.5L Complete Crate Engine - Road Race / Rally

The 4 Piston Racing K400 Endurance Engine is specifically designed for maximum power output and extended durability. This engine is a "no-compromises" approach using the highest quality components available, starting with a rigid 4P ductile iron sleeve and our durable I-beam billet steel connecting rod. This long ratio rod is connected to a strutted ultra lightweight, short-skirt piston with tool steel wrist pin. The piston and ring package are specifically designed for this engine to provide superior ring seal and extended use in abusive conditions. Air and fuel move through this engine via our infamous 400 CFM "Pro 163" CNC Cylinder Head and 4P RR4 billet camshaft. We are on the cutting edge of 4 valve cylinder head technology and you will not find similar performance in any other cylinder head. Valve motion is controlled by the highest quality PAC valve spring. Oil pressure and controlled by a 4P CNC Ported oil pump and baffled pan, designed to keep your engine properly lubricated in the most extreme g forces in all directions. When you buy a 4P Endurance Engine you aren't just investing in a top competitor, you are investing in a customer support system and an engine program that you can depend on for multiple race seasons.

• 4P rigid ductile iron sleeve Honda K20 or K24 engine block 99mm stroke x 89.5mm bore
• 4P I-beam long rod connecting to an 18mm tool steel wrist pin
• 4P Wiseco strutted box forged ultra lightweight piston, armor plated, 89.5mm high compression
• ACL race bearings, ARP fasteners, exclusive 4P spec head gasket for better seal
• 4P Pro 163 CNC Cylinder head, 4P custom valves, Ferrea PAC HD valve springs, retainers, and locks
• 4P tool steel billet RR4 iVTEC camshafts
• 4P Ported oil pump and baffled sump
• All new Honda timing components and hardware
• Complete engine valve cover to oil pan
• Meticulously assembled and supplied with detailed build sheets

Recommended Use

• Road Race
• Time Attack
• Rally Race
• Race fuel recommended (compression can be altered to operate with spec fuel)

Features and Benefits

• Durable components and coatings that are designed to last
• 4P Super Pro 163 CNC Cylinder Head with the latest in 4 valve cylinder head technology
• Premium PAC valvetrain designed for long life
• 4P Oil Pump and baffled pan provide superior oiling at all rpm ranges under cornering, acceleration and heavy braking
• 4P vented and Engraved Valve Cover Available
• Cleanliness and attention to detail that everyone will be proud to own
• Meticulously Assembled - Supplied with full engine specifications and tolerances
• Recommend periodic maintenance procedures

When you purchase a 4 Piston Racing complete engine, you aren't just buying any run-of-the-mill engine package. You are investing in a fully developed and tested engine program that is designed not only for maximum power output, but also for maximum durability. Our engines are meticulously assembled with a great deal of pride in a clean environment, using the only the finest calibrated tools and by engine builders who specialize in performance racing applications.