455 identification
#1
455 identification
Hello, i would like to ask you how to identify a 455 big block, i think mine is a 455 since its blue but i just wanted to be sure. And if someone can give its specs that would be awsome. (1974 442)
#3
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#7
Don't mean to hi-jack but what are the differences between A and D 425 blocks?
#8
In reality, nothing meaningful. The A-block is 1965 only. The D-block is 1966-67. All A-blocks used a 45 degree lifter bank angle and 0.841" lifters. All D-blocks used in RWD applications (non-Toronado applications) were also 45 deg and 0.841". The 66-67 D-blocks used in Toros got the 39 deg lifter bank angle as used in the 68-90 motors but the uncommon 0.921" diameter lifters.
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