Jegs Performance via eBay offers the Chevrolet Performance GM Goodwrench 350-Cubic-Inch Engine
, model no. 10067353, for $1,319.99
with free shipping
. That's $10 under our May mention and the lowest total price we could find now by $140, outside of other eBay vendors. This engine features a 4-bolt main, 260 horsepower, and 350 ft. lbs. of torque, and comes with valve covers, a timing cover, and oil pan. It's covered by a 3-year, 100,000-mile warranty.