GMC C15 / C25 / C35 / K15 / K25 5.7L / 6.6L 1976, S/R Iron Cylinder Head Assembly by World Products®. Designed specifically for racing and high performance engines. They are loaded with performance and durability enhancing features which make them far superior to OE castings. World heads are made in the USA, cast from special high density cast iron for increased strength and precision machined on dedicated CNC machining centers. World Products cylinder heads are available bare or assembled with premium quality valves, springs and components to simplify your engine building.
Fitment notes: Fits Models with Chevy Small Block I Generation Engines.
|Runner Volume: 170cc|
|Spark Plug: Straight|
- Meticulously tested to offer unprecedented performance
- Guaranteed to survive under tough racing conditions
- Built strong to provide long-lasting service life
World Products® has been producing affordable high performance cast iron engine blocks and cylinder heads for twenty five years, beginning in 1987 with a pioneering small block Chevrolet cylinder head and continually expanding the line to become a leading aftermarket manufacturer. World Products first design was a cast iron head for the small block Chevrolet that delivered impressive performance gains. This head became an instant success and was named Product of the Year in 1988 by Hot Rod Magazine. It produces 30-70 HP over stock heads, and remains the only high performance cast iron small block head to be certified for use in many racing leagues.