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So two of the exhaust have half sized ports. Interesting. I am guessing to save money or space. Still those four would not breathe as well as the other two. I am no engineer, but it doesn't make sense to me why they would choose that layout.
This talks about these types of ports, and you can see the history. Ford seems to have gone away, but then came back with "stacked" ports on the intake side, another performance road block. Who knows how some of those people came to their conclusions?
Churchill spoke with FDR in 1940, saying we need a factory in the US to build the Rolls Royce-Merlin aircraft engine for the war effort, because the German's are bombing our plants.
FDR contacted Henry Ford (who hated FDR) and asked him if he could build them. Ford agreed and signed the contract, but once Ford's meager engineering staff looked at the blue prints, they passed.
So the contract was given to Packard, who built over 55,000 of them. Packard made so many changes that simplified the design, that their version is known as the Packard-Merlin.
Packard also assembled marine engines, every PT boat had 3 Packard V12's, Packard also made diesel engines.
Packard OHV V8, 1955/56. These engines were fraught with problems. Were also installed in 1955, and some 1956 Hudson's and Nashes & 1956 Studebaker Golden Hawks.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.