I was reading an old post and they mentioned that there are 2 different weght blocks. They used letter codes something like RGFC aand RGCC. Is there a way to ID theses blocks by looking at them? Are there strength issues wth either?

_________________
1966 Dart GT
4 spd. OD conversion
8 3/4 - 3.55 SG (Sold)

62 Lancer GT
B Body 8 3/4

i think they where talking about the aluminum block. if you look in articles you will find the aluminum block article by doug dutra

I would guess the RGFC is the RG block (225 and 198) with a Forged
Crank and the RGCC would be the RG Block with a cast Crank.
More details on blocks can be found in the Articles "Playing with
Blocks"

http://slantsix.org/articles/dutra-bloc ... blocks.htm

Thanks that is what I was looking for.

_________________
1966 Dart GT
4 spd. OD conversion
8 3/4 - 3.55 SG (Sold)

62 Lancer GT
B Body 8 3/4