Where can you locate the date code on a 69 vette (427 engine)?
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Re: date code for 427 engine
Date code moved in '69 on BB's. Early engines (up to approx VIN 20,000) had the date code located in the same position as '65 396 and '66-69 427: on the RH lower side of the block directly behind the RH exhaust manifold. This makes them a 'joy' to judge as you have to wiggle/sniggle underneath, look up between the block and the exhaust mani with a flash light + inspector's mirror and read the date code 'backwards' through the mirror.
A 'trick' is to locate the position of the code reach up and take an impression of it (chewing gum, putty) and read the impression, off engine, through a mirror which will de-reverse it.
Later '69 BB's moved the casting date to the RH rear apron (near the bell housing) which agrees with the postion typical of SB engines.
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