Impala LT1 questions
Impala LT1 questions I need a motor and this guy has a 96 impala ss and he said he would sell me the motor. I know an LT1 block is an LT1 block. But my question is should i stick with the iron heads or go back to some aluminum ones. I am going to port the heads a little and freshen them up with all new springs and stuff. So which one is better iron or aluminum.
Originally Posted by chameleongreen97ta
I need a motor and this guy has a 96 impala ss and he said he would sell me the motor. I know an LT1 block is an LT1 block. But my question is should i stick with the iron heads or go back to some aluminum ones. I am going to port the heads a little and freshen them up with all new springs and stuff. So which one is better iron or aluminum.
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Originally Posted by moehorsepower
The Iron LT1 heads actually flow a little better than the aluminum ones, at least that is what I read on a GM article. As far as power? I have only seen one F-body with the Iron heads but no Dyno Numbers, other than a weight savings I guess it would be a preference..
Originally Posted by LiENUS
Once you port the aluminum heads they flow just as well as the iron ones. Aluminum ones are also less prone to detonation so you can run higher compression.
