3788406 The only things I have show it as the 230, 62-69 And the 3788415 Being the 194 for head for 62-67 with a CC of 72.80
the 3788378 being a 62-74 292 And The 3788380 was a 194 with a CC of 62.03 ( This was a Un-used head never even painted NEW cast )
Thanks Twisted6. That's all consistent with the reference materials printed back in day - save one. Do you have any physical examples or photos of a 292 casting with the 3788378 identifier? The earliest castings that I have seen are all 3789404 from mid/late '62 for delivery in '63 models - the first model year the engine shipped. Regular passenger cars and trucks in '62 continued to ship the 235 or the 261 (heavy duty long wheel base).
That and my new bugaboo - casting 3788406. The Chevrolet parts master catalog clearly shows it being used for both 194s and 230s. Does it even makes sense to cast such thick bore walls for 194? I am working to track this down.
