390 in 1970 LTD (wikipedia) The 390 was the base engine in the Thunderbird from 1961 to 1968 and was available in the Mustang from 1967 to 1969.
Buy Engine 66 Mustang 400 Big Block Engine The Chevrolet "Big Block" is a term for a series of large displacement V8 engines that were developed in the USA during the 1950s to the early 1970s. One man’s obsession to build the world’s quickest blown-fuel Pontiac 400 big-block engine – Hot Rod Magazine Crate Engines Calgary Alberta Canada White
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whats the hp ratings for a 396 high output engine?