usnavyame70
Sep 25th, 06, 9:36 PM
well i bought this chevelle that is all original and the engine code is cnn which is 350 250 hp 2 barrel with th-350.my question was i can i tell without taking the oil pan off it is a 2 bolt or 4 bolt main.thanks.
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: how to tell if 350 motor is 2 or 4 bolt main? Danspeed1 Sep 25th, 06, 9:56 PM Get the numbers of the block go to: www.mortec.com Dan onovakind67 Sep 25th, 06, 11:59 PM well i bought this chevelle that is all original and the engine code is cnn which is 350 250 hp 2 barrel with th-350.my question was i can i tell without taking the oil pan off it is a 2 bolt or 4 bolt main.thanks. You can't. BillsCamino Sep 26th, 06, 6:43 AM Gotta remove the pan. Same castings were generally used for both 2 & 4 bolt. chevguy65 Sep 26th, 06, 10:16 AM Pull the oil pan | ||