I gotta look into a replacement for a busted block. It's on a 1988 7 meter Velota from Webbcraft, the engine is a carbed 7.4L, Bravo 1, serial number tag not readable, block casting number HO13445. I think the serial number falls within the range of B771113 to D6031174, spanning model years '88 to '91. Does my replacement have to fall inside that range, or can I use earlier or later ones?
