Just a suggestion:
I'm currently building a 351C for my '72 mach 1 and I've decided to go with
the "Aussie" heads.
They're the best of both worlds, the fuel economy and low-end torque of the
2 bbl heads, but the compression of the 4bbl "Quench" or "closed chamber"
heads.
I have a feeling this motor's gonna scream!!!
(I found my "Aussie" heads on ebay at a pretty fair price).

Good luck!
-Dave


"Dean" > wrote in message
...
> Found a Q code 73 Mach-1 in a salvage yard. Not much left of the car, but
> got the engine and trans for $325. When I got the engine home checked the
> casting number on the block D2AE-CA this checked out, Intake manifold was
> 4bbl spreadbore. All seemed good until I checked the Heads. They had a 2
> in the corners, which means 2bbl heads. So you mean to tell me that
> someone removed the 4bbl heads and placed 2bbl heads back on, and left the
> 4 bolt main block and 4bbl intake. I guess this is possible. Was planning
> on placing this in my 71 coupe and taking out the original 302. I guess
> my guestion is, is this how you tell the difference between 2bbl and 4bbl
> heads on a cleveland?
>
> Thanks Dean.
>


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