http://www.348-409.com/datecodes.htm
Decoding small block Chevy engine suffix codes and stamped …
WebApr 10, 2024 · While the LS engine launched as a 5.7L/350ci engine with the LS1, it is far from the 350 small block Chevys of old. This all-new engine design may share displacement with the old Gen I and Gen II small block Chevy, but even it’s displacement comes at a different bore and stroke. WebJul 19, 2012 · Joined Jul 7, 2012. 22 Posts. Discussion Starter · #3 · Jul 19, 2012. No it isn't. There is no date code or clock on rear of the engine. One forum quoted that GM moved date codes to the side of the block in the 70's. This is passenger side between the core plugs. Block code (in the usual place) confirmed as 3970010 "M" code next to this. bvs iced tea
Identifying Chevy engines - Crankshaft Coalition
WebOct 19, 2024 · A "high tower" distributor boss block with date code of May 23, 1969 with casting date on the back flange. Another "low tower" distributor boss 512 block with … WebSmall Block Chevy Crankshafts. All crankshafts have a casting number located on one of the rough finished throws or counterweights towards the front of the crank. Two types of crankshafts are offered, cast nodular iron and forged steel. Since forged cranks are more expensive to produce, they are generally used only in high performance or severe ... WebFeb 16, 2024 · The DATE CODE for the block is on the block's rear extension, on the flat part, about 1/2 way between the rear intake manifold's seal and where the transmission mounting is. On small blocks, this is a casting section, about the size of my little finger nail, with the format "MDY". ... In the world of small block Chevy cylinder heads, the normal ... cews p22