Can anyone tell me what this block is out of? VI226HU Also has 2 seperate letters AE on the bottom left side of the block #.

maybe some of the other guys can jump in and help decode the 1st part but HU shows as these two engines

1965 HU 327 h/p, hylft, a/c, m/t 350hp 4 bbl Vette

1969 HU 350 Powerglide 255hp 4 bbl full size car

Thanks night rider, I was able to find out that the V is Flint V-8 engine plant, but the I is still a ? It should be a # not a letter, which is part of the date code. How do I tell if it's the 327 or 350? Anyone, Anyone!

It was quite common for Flint (and Tonawanda) to use the letter "I" in place of the number "1" in engine assembly codes. Check for a casting number or date to determine whether it was a 327 or 350.

Thank You ChrisS,I'm getting closer to knowing what I have!

If the engine is complete, a '65 327/350hp would have non-accessory hole camelback heads, a short water pump, an aluminum intake, and a holley 4 bbl carb.

A '69 350/255 would have accessory hole heads, a long waterpump, a cast iron intake, and a Quadrajet carb.

If the engine is stripped, and the heads are gone, the 327 would have domed pistons, and the 350 should be either flattops or dished pistons.

Thanks GaryS, This will be very helpful, I'm not sure, but it is complete and still in the car so I'll check it closer tomarow!