SPAL Advanced Technologies Low Profile Electric Cooling Fan 10" Fan Pusher 844 CFM - Curved Blade HYSSML11M61 There may be some groups

There may be some groups that require the use of "stock" crankshafts

An most cases they are only marginally heavier than the original cast iron balancer and generally much lighter than all steel balancers on the market

Chevy Corvette 1984-90

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SPAL Advanced Technologies Low Profile Electric Cooling Fan 10" Fan Pusher 844 CFM - Curved Blade HYSSML11M61 There may be some groupsProduct Description: Electric Cooling Fan Low Profile 10 in Fan Pusher 797 CFM 12V Curved Blade 11 1 4 x 10 9 16 in 2 in Thick Plastic Sold Individually SPAL electric fans and accessories are built to meet the most rigorous cooling requirements needed for todays high performance automotive applications. SPAL fans are durable, reliable, and the choice of many NASCAR teams. SPAL offers a variety of high performance fans perfect for your motorcycle, ATV,