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4" stroke in sbc

  1. Engine
    I was planning on a 400 or 406 SBC, using a Dart SHP for my 1970 El Camino. Some of the short block vendors show a 427 (4.125 x 4.0) for the same price, using the Dart SHP or Little M. The Dart website says, basically, that a 3.750 is the longest crankshaft recommended. What do y'all think...