3782870 1965 casting 327 block question
 

A good friend of mine was given an 327 Chevrolet engine 30 years ago that came out of a wrecked 1968 Firebird Convertible Streetrod, heads are casting # 3782461 with a F175 cast in the heads, block has casting #3782870 which the books tell me is a 1965 block, was running 12.5 to 1 pistons and looks like the block was decked, the #'s on the pad are N129343 and F0304hb, but they are light, I'm thinking this is a 327/375 FI motor? Any thoughts?

Re: 3782870 1965 casting 327 block question
 

HB codes out to 1965 Impala 327-300hp 4 barrel with a stick.

Re: 3782870 1965 casting 327 block question
 

yep, I found it now, thank you very much for the assistance

Re: 3782870 1965 casting 327 block question
 

Can you post the casting date off the block and a picture of the engine pad? Always good to see another for reference.