mopar 3 B
Well-Known Member
The big problem would be getting all that safety equipment into the old car and getting NASCAR to allow the extra 300 ponies their running in today's sleds.
Under the hood, a real miracle was taking place. Keith Black's engine shops had kept the 340's 4.04 inch bore but had destroked it to 303.8 cubic inches. Thanks to the special Trans-Am block which had a beefier bottom end, the main bearing web was redrilled for four bolt main caps. A cross drilled crank and forged rods were good to 8,500 RPM and the engine was kept alive with a better oiling system. The new heads were treated to a port job and the valvetrain was beefed up with Hemi rocker arms and shafts. With a single Holley four barrel carburetor, the engine now dyno'ed at over 460 horsepower.
as you can see they are not compatible or interchangeable at all, let alone fit under a SBM valve cover
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From the AARchives - some info on the 5 liter build.
Under the hood, a real miracle was taking place. Keith Black's engine shops had kept the 340's 4.04 inch bore but had destroked it to 303.8 cubic inches. Thanks to the special Trans-Am block which had a beefier bottom end, the main bearing web was redrilled for four bolt main caps. A cross drilled crank and forged rods were good to 8,500 RPM and the engine was kept alive with a better oiling system. The new heads were treated to a port job and the valvetrain was beefed up with Hemi rocker arms and shafts. With a single Holley four barrel carburetor, the engine now dyno'ed at over 460 horsepower.
http://www.members.shaw.ca/aarcuda/svamcaarta.html
If the #22 car engine was living at 10,000 it must have had even more work done to it, and likely more power as well. My way of thinking - I haven't seen any solid dyno info on it.
I did wonder about that part, I wonder what Kieth Black would be able to tell us.