The Perfect World Products 042650 - Cylinder Head Cast Iron Chevy Small Block S/r 170cc 58cc 23degree 1.940" X 1.500" (305cid) Straight Plug, Bare Castings Diy Kit [7up09kL3]

World Products 042650 Cylinder Head Castings

The World Products 042650 Cylinder Head Castings are a top-tier choice for Chevy Small Block engines, offering a robust and reliable alternative to expensive OEM castings or unreliable junkyard rebuilds. Designed with extra-thick decks and walls, these castings provide enhanced durability and reliability, ensuring your engine runs smoothly for years to come. The heads are fully compliant with 50-state emissions standards, making them legal for use in many oval tracks and race sanctioning organizations.

Key Features and Specifications

This cylinder head is crafted from high-density cast iron, ensuring exceptional strength and longevity. It features integral cast iron valve guides and hardened steel exhaust seats, compatible with today's unleaded gasoline. The valve seats are machined for a 1.560" spring seat, and the valves are made of ERSON stainless steel, providing excellent heat resistance and durability. The cylinder head includes a 170cc intake runner and 65cc exhaust ports, with a combustion chamber size of 58cc. The valve angle is stock at 23°, and the spark plug is a 14mm 5/8".460" reach tapered style, compatible with EX. ACCEL 276 or 276S.

Practical Uses and Benefits

The World Products 042650 Cylinder Head Castings are ideal for a wide range of applications, from street performance to racing. Their superior design and construction make them a perfect fit for Chevy Small Block engines, offering improved performance and reliability. The raised valve cover rails help eliminate oil leaks, while the ability to accommodate both early style perimeter and late model center bolt valve covers provides flexibility. The heads are also fully emissions legal, ensuring compliance with various racing regulations. With their exceptional flow data and comprehensive features, these cylinder head castings are a must-have for any Chevy Small Block enthusiast.