I had posted this in the General Discussion forum - maybe that was the wrong place?
I have a 354 Poly Block with casting #1819828 (forth and last digits could be either 8 or 9 - hard to read). Serial number is C75-1632C J46. I think the J46 is for Oct. 4, 1956, but I have not found information on the casting number or serial number.
Also have heads with cating number 1556157-1 (1955 - 331 cid). Can these heads be used on the 354 block even though the bore of the head is smaller than the block? Any help appreciated Thanks
Kirk
354 Poly block
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