ok so i got a problem im trying to find out what the engine in my 80z28 is from, i know its not the original but it is a 5.7 350, the number that i found on the front passenger side by the water pump reads VO406UXH CLF??5085
From multiple sites ive found that it was produced from 86-95 it might be from a truck a vette or an A or B body not sure what those are.
http://www.classictruckshop.com/castgm_smblock.asp using the casting number of the back of the block close to the transmission on the passenger side reads 14093638
FY___stamp RPO__CID_appl_______VIN_____HP___BBLS____Body/Comments
1976 CLF________350_L65________V______145___2_______A B
1977 CLF________350_a/t, Calif____X L82__210___4 ______Vette
this is from
http://www.nastyz28.com/sbchevy/spcode2.html