VALVE SEAT RESTORATION KIT. Small Block Chevy 283 Heads. 3 ANGLE CUT AS OEM VALVE SEAT. 2 x 1.790 30, 45 Degree for Intake. 1.540 30, 45 Degree for Exhaust. 1x 1.750 60 Degree for Intake. 1x 1.500 60 Degree for Exhaust. 11/32 VALVE GUIDE REAMER HSS. 5/16 VALVE GUIDE REAMER HSS. 3/8 VALVE GUIDE REAMER HSS. 2x T – HANDEL. 1x THREAD CLEANER TAP. PACKED IN WOODEN CASE. PLEASE FEEL FREE TO ASK ANY QUESTIONS.