ALUMINUM BLOCK 0-326711 Value ???? Come In WHAT ??

[DRIVER155]

Hey , it has no snowflake , the part # 0-326711 is on the frt. and back along with WDC (winters ? casting )??? , no dates , S15 on one part of the bellhousing , a number that is about 5-6 digits stamped in the frt. around the water pump hole ? that I forgot to get . He wants $10,500 and I thought there was plenty of room on the table to make a lil since its rarity and the ZL1's bringin 25-30K ??? Any input greatly appreciated .....2 guys are now saying it was a prototype canam block . The guy that has it says he has a drag racing article with Grumpy Jenkin's car pictured with this block in it , but another guy said that's wrong because Grumpy's car block had to come in a production car like the ZL1 ?? Is the price cheap , high , right on , or what ....I don't want it to slip away ? Thanks , Richard