Victor Jr. 23° Cylinder Head for S/B Chevy Mechanical Roller Camshaft (220cc)

Edelbrock Part # 61259 Victor Jr. 23脗掳 220 cylinder heads are designed for small-block Chevy Its 64cc combustion chamber yields around 10:1 compression ratio in a typical flat-top application and about 12.5:1 when used with some of the most common 12cc dome pistons. One of the key features of the Victor Jr. 23脗掳 220 cylinder heads is the CNC machined chambers and bowls, which result in consistency and improved performance. They also feature angled spark plug holes and maintain the stock 23脗掳 valve angle as well as the intake flange bolt pattern for use with 1986 and earlier intake manifolds. All of this allows these cylinder heads to deliver 530-580 hp potential right-out-of-the-box, making them ideal for a budget minded engine build desiring a high quality cylinder head that still uses a stud and guide plate rocker system. Cylinder Head Specifications: 芒鈧垄 Finish: Satin 芒鈧垄 Designed for use with Mechanical Roller camshafts 芒鈧垄 Combustion chamber volume: 64cc 芒鈧垄 Intake runner volume: 220cc 芒鈧垄 Exhaust runner volume: 85cc 芒鈧垄 Intake valve diameter: 2.10" 芒鈧垄 Exhaust valve diameter: 1.60" 芒鈧垄 Valve stem diameter: 5/16芒鈧聺 芒鈧垄 Valve guides: Manganese bronze 芒鈧垄 Deck thickness: 11/16芒鈧聺 芒鈧垄 Valve spring diameter: 1.55" 芒鈧垄 Valve spring maximum lift: .670" 芒鈧垄 Rocker stud: 7/16" 芒鈧垄 Guide plate: Hardened steel 芒鈧垄 Pushrod diameter: 5/16" 芒鈧垄 Valve angle: 23脗掳 芒鈧垄 Exhaust port location: Raised .300芒鈧聺 芒鈧垄 Spark plug fitment: 14mm x .750 reach, gasket seat