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I have one more question. Do you think there is enought horespower advantage in a steel block to make up for the extra 100 lbs or so? Indy says the Maxx aluminum block is a 110 lbs lighter than the cast iron block.
No one has mention that yet. I was just curious.
How much extra horsepower would it take to make up a 100 lbs? I can't find my Moroso(sliderule) calculator.



Unless the rules dictate otherwise, Pro Stock would be all over Aluminium blocks if there was an advantage. The Compacted Graphite Iron block are much more stable, hence why they are used in Diesel engines and Pro Stock, Comp Eliminator and the like.

Alan Jones