Back in the late 1990's, when I was hot and heavy into
researching big block Chevy information, I purchased a
number of reference books. Many of these books that
focused on building a BBC engine talked about the '074
heads. I would have to say that overall, most of these
authors talked down on these heads due to their hugh
round exhaust port design. As I recall, the claims were
that you couldn't generate enough power on the street to
take advantage of the port configuration. Without
exception, the '077 vintage D-port aluminum heads were
called the hot ticket for the street.
So, this brings me to my question. Why do we see these
'074 heads on eBay all the time? Are the people holding
them just trying to unload them due to the whole ZL-1 craze?
Can any members here talk from experience about the '074
heads and how effective they actually were? I always
wondered about this?
I got into this game late. By the time I was driving,
the first gas crisis had recently ended and the second
one all but killed anything BBC related. As I've written
here many times, I used to make spare money swapping out
BBC's for SBC's and sold the BBC components for scrap.
I chucked-out a complete LS-6 and a complete Ram Air IV
because I ran out of garage space in the late 1970's.
Don't say it !!! I want to kill myself sometimes !
Steve