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: Decode 1968 375 hp 396 engine RLC-HUNTER Sep 8th, 04, 6:14 PM What info about the car and engine can be brought to light from vin pad stamping and block casting. Will it tell if the engine has 2 bolt or 4 bolt main caps? and what else? The block casting is #3916323 serial # T08151V and vin # 13J204675. Thanks !! d1_bradley Sep 8th, 04, 6:31 PM Well, the "IV" suffix is for a 325HP 396 with TH transmission, if that helps, I'm thinking this DOESN'T "help" since evidently someone told you its a 375HP engine. The casting # is for a '68 396, 2 or 4 bolt main. RLC-HUNTER Sep 9th, 04, 1:45 AM Are you saying that this IV code for sure means that this is not an original 375hp engine ? shooter Sep 9th, 04, 5:09 AM Yes IV is only used for an Impala 396/325hp 65-68 The partial vin should be 18J+ 1=Chevrolet 8=68 model year J=Janesville,OH plant (Impala plant) +=car sequence number Impala only offered the 396/325, the upgrade engine was the 427. You can verify the IV code here http://www.nastyz28.com/sbchevy/spcodec.html Edit:Janesville OH? ...oops..so much for going from memory.. smile.gif Rene 66_Malibu elcamino Sep 9th, 04, 8:18 AM shooter is correct about the IV code, IV cannot be a 375 HP. fyi - Janesville in located in Wisconsin near Illinois state line ccarney69 Sep 10th, 04, 4:22 PM I have an original 67 Impala SS with a 396/325 and its an IV, the protect o plate verifies this also. Chris | ||