this 19 yr old YearOne 440 Magnum crate had 420 horses, 470 lb-ft of torque, and a $4,495 price tag. A seasoned iron block, 9:1 hypereutectic pistons, ported heads, and a Weiand aluminum intake up top. The cam supplied 0.480” of intake lift and 0.496” on the exhaust

YearOne even included a dyno sheet to settle the bench racing, plus a 12-month, 12,000-mile warranty

https://moparconnectionmagazine.com/video-yearning-for-yearones-4495-crate-440-magnum-from-yesteryear/