The Engine Block Casting code is one of the best ways to identify a Chevy engine block. This engine Casting number is usually found at the rear of the block on ...
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Chevy big block engine serial number decoding
Casting, Year, CID, Main Caps, Comments. 340220, 1972-76, 427, 4-bolt, tall truck. 345014, 1974-86, 454 . truck. 346236, 1974-76, 454, 2, 215, 2 bolt. 359070 .... Sep 14, 2009 — Note about the letter "I" instead of a number "1" in the engine code for the ... Big block on the right side of engine above the oil pan rails. ... On 1969-and-earlier engines, the sixth and seventh characters are the engine identification suffix. ... My reference shows 'IVR' as a Chevrolet Impala 396 engine with .... The block casting number on small block and big block Chevy V8 motors is located on a ledge found at the rear of the block, most often on the driver's side. This ... 3925e8d270