CYL HEAD ESTREET BBC SING

Assembled; Chevy Big Block; Natural Aluminum; 290 CC Oval Intake Port; 110 CC Exhaust Port; 110 CC Chamber Volume; 2.19 Inch Intake Valve; 1.88 Inch Exhaust Valve; 1.55 Inch Spring Diameter; Single; With Pushrod Guides; Rocker Studs