The Aluminum Option
Aftermarket aluminum engine blocks have traditionally been left to the domain of professional racers, thanks to prices far greater than their weight savings. World Products is changing the status quo, however, with lower-cost aluminum castings, including an alloy version of the Man O' War block. That is due to an innovative machining process that World Products says dramatically shrinks the time and effort involved in finishing a rough casting.
The aluminum Man O' War saves about 100 pounds when compared to the weight (including main caps) of the iron version and adds about $2,000 to the price of a crate engine. That is only about a 15-percent premium on the cost of the crate engine described in our main story. A 15-percent premium may be the cost, but to paraphrase a popular advertising campaign, the exotic allure and "wow" factor of an aluminum Windsor block is priceless.