The Larson book is good. It contains lots of reflection from varying, and aged memories.. I really hate the fact that Ronnie's explanation and John Martin's of the '69 "super-motor" are vastly different. Ronnie has always been quoted and described it as a short-deck motor that was made by hand filing the water jacket cores down, so that the stock block casting had a really thick deck enabling the block to be shortened "about 5/8 of an inch". John describes it as an extra tall deck, to be able to run a "long 6.0 Chevy rod".... The math and the parts, in my opinion, really only fit Ronnie's description. A stock 1969 AMC block deck height is 9.175.... taller already than a stock Chevy. The AMC T/A crank is 2.906 stroke, which is shorter than the 302 Chevy at 3.0... What this means is, you don't need to cast a taller block to run a 6+ inch rod in a stock AMC block. A block with a 5/8" SHORTER deck height lowers and narrows the intake valley; the rare T/A tunnel ram for the Dominator carbs is 1 inch narrower than a stock AMC intake... My T/A crank (NOS) has 2.20 inch rod journals which are are not a standard AMC size, but are standard big block Chevy size (6.135 standard length). There are no mentions anywhere of any "extra tall"AMC blocks; but there is a handful, literally, of thick-deck or short-deck blocks.... I have 1 with 4 bolt mains...
Ken
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what are parts really trading for?
Ken