.904″ SBC Chevy Roller Lifter, Severe Duty / Oversize bearing, HP Oiling: .150″ OS Intake & Exhaust, for Billet SBC heads, Crower 66282X903 (single cyl pair)

2.450 x 6.350 x 11/32″ Titanium Intake Valve, Bead lock groove, .250″ plain tip, 55ø seat angle, 14ø UHA, Crn coated, 123.6 gm wt. Solid stem, M-H Hemi Stg IV. Scitex (each)