Quote:
Originally Posted by er455
Ok I have a set of max ported 6x -4 heads on my turbo 455 motor roughly 9.5 to 1 compression would I see any gains / benefits by going to a max ported aluminum D port head , besides the xtra compression ? Also are the size of aluminum heads exactly the same size as iron heads , because I am very tight with my log manifold to the frame now ..and all my hot air crossover pipes were mocked up with the iron heads . Thanks
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Is this a race only application? If it is, u can go much higher on compression ratio... I was running 12to1 with 42lbs of boost on alcohol..
It's all a matter of tune and how far u want to push it. Race only....push it!