Edelbrock Crate Engine LS 416 Long Block for Naturally Aspirated ApplicationsEdelbrock part #46725 is the same long block used on our Victor Jr. LS 416 crate engine that makes 602 horsepower and 538 ft lbs. of torque. It features an aluminum LS3 block with a forged and balanced Manley crankshaft, forged Manley H Beam connecting rods and Manley forged aluminum pistons to create a 416ci LS3 stroker with 4. 065" bore and 4. 000" stroke. The core of this long block are the Victor Jr. LS3 cylinder heads #61339 and Rollin' Thunder