I bought a 76 manual tranny trans am 400 motor (actually a pretty rare motor as 30,000+ TA's had autos and 5500 400engineTA's had a manual that year) two weeks ago for $100.00 intake to pan. Yes, it is the suspect 557, but was code/casting and date correct for my 76 400 4-speed TA...
Anyway, 400 for just the block is prolly a little high, unless the casting/code (WT), date, etc., mean something to you...
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