Jegs Performance via eBay offers the Chevrolet Performance GM Goodwrench 350-Cubic-Inch Engine, model no. 10067353, for $1,509.99 with free shipping. (Summit Racing charges the same.) That's tied with our mention from a week ago and the lowest total price we could find by $45. This engine features a 4-bolt main, boasts 260 horsepower and 350 ft. lbs. of torque, and comes with valve covers, timing cover, and oil pan. It's covered by a 3-year, 100,000-mile warranty.