Chevy "W" 348-409 Block Numbers

3732755.....348......59-61
3732811.....348......58
3751872.....348......58
3755011.....348......59-61
3771705.....348......59-61
3782012.....348......58-61
3788068.....409......62-63
3795623.....409......61
3798962.....348......62-65...Truck
3815707.....348......58-61
3830814.....427......63......"Z11" (4.312" bore x 3.65" stroke)
3830814.....409......63-64
3839752.....409......62-63
3839754.....409......65
3844422.....409......63-65
3857655.....348......62-65...Truck
3857656.....409......64-65
3860386.....409......62-64
3860387.....348......58