Quote:
Originally Posted by Randy1944
I picked up a couple of vintage Edelbrock alum. heads for a 1949-1953 Flathead Ford. Both heads are marked “F 7-5 M8”. Could someone tell me what this information means? Also, some help with information as to how to remove stubborn bolts from the heads. Thanks
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It is the compression ratio. F is Ford 7.5 and M is Mercury 8 compression ratio.