Quote:
Originally Posted by will7262
I wonder if anyone has fitted some sort of header or a better cast exhaust manifold to a 603 and later car. All about clearing the chassis I guess.
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According to the experts, Chrysler's original cast iron manifolds were quite efficient and able to handle "street" performance upgrades. 300HP certainly fits into this category.
The cost of getting custom headers made would probably not be warranted in terms of performance increase and may create problems by increasing the engine bay temps.
I am assuming that Bristol used the stock Chrysler exhaust manifolds, as they did on the 411.