It is quite common and my guess is the vast majority of blocks were made that way. They were used for marine and industrial use and some can be drilled for sideoiling although there is little benefit to doing so (unless you plan on doing Nascar track time) but most of them have the passage area machined away around the motor mount so that normal FE mounts could be used and so can't be drilled. Hawkrod
Hawkrod
39 Ford Deluxe Coupe
59 Tbird 430
60 Lincoln Premier
(2)62 Tbirds
(3)68 Cougar XR7-G's
69 Cougar 428CJ 4 speed
77 1/2 Ford F250 4X4 w/460 swap
86 SVO mustang
76 F250 Crew Cab
1969 Mach I
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