348-409 Head Numbers

3732791.....348......58-60
3758379.....348......59-61...250 hp
3759256.....348......58
3759332.....348......58-60
3764702.....348......60......Truck
3767738.....348......59-60...250 hp
3781147.....348......60-61...HiPerf, 2.06"/1.72" valves
3781173.....348......60......1.94"/1.66" valves
3795586.....348/409..61......HiPerf, 2.06"/1.72" valves
3814690.....409......62-63...HiPerf, 2.19"/1.72" valves
3815643.....348/409..58-62...Truck, Industrial
3815857.....348/409..58-62...Truck
3819333.....348/409..62-65...HD Truck
3830817.....409......63-65...340 hp
3837731.....427......63......"Z11" (4.312" bore x 3.65" stroke)
3852583.....409......63-65...HiPerf, 2.19"/1.72" valves