Block Casting Numbers
I am looking for info on a block i have had under my work bench for 25 yrs. It is a 427 4 bolt main with the tall distributor boss. The casting as i can make it out is 3903854. The 3 may be a 5? No pad cods now as it was a race block. Has a K14 cast below # 7 cyl. HP cast every where. Thanks.
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69z2x4s
69vette
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