Re: 4 Bolt Block?
Yeah, rare as. They are known as 'Nascar' blocks, or 'Race' Blocks, and some other terms.
There were more than that scattered through some productions up until XE's and some late 70's, early 80's F-Series. Not many, but they were around.
Have seen std bore 4-bolt blocks, with caps only, for $2000 +
Anyone know where theres some??