[koadog]

It appears to be the original block. Engine suffix indicates it may have had aluminum heads but the pair in the garage are iron heads, date coded for 1969The combination of not being able to hear the engine, statement that one cylinder had to re-ringed and the missing aluminum heads are a concern. Always wanted a cobra but just havent been able to part with the vette I have. It was my fathers and has been in the family for almost 40 yrs. I'd have to sell/trade it and the 1953 bel air. The harleys stay!