CNC-Motorsports offers the best brands in aftermarket performance auto parts. We specialize in performance racing engine parts from brand name like, ARP, Dart, Brodix, Holley, MSD, JE, Diamond, Comp Cams, Total seal and more.

CNC-Motorsports short blocks are in high demand among racers of all types worldwide. We use the best name brands such as Dart, Callies, Lunati, CP-Carillo, Eagle, Scat, JE, Diamond, Mahle and Manley just to name a few.

We offer the best crate engines and race engines your hard earned money can buy. Dyno tested, proven performance. Custom racing builds available

CNC-Motorsports is a high performance auto parts speed shop based out of Brookings, South Dakota. Established in 2001 we have quickly grown to become one of the industries leading suppliers offering high quality performance engine parts, performance short blocks, custom crate engines, and highly modified race engines.

Best selection of Dart 415-421 short blocks are here! fully machined & blue-printed, Custom builds available, Shop Every part at CNC-Motorsports

Wide range of Chevy LS - Crate Engines - Complete Engines - Engines at CNC Motorsports for all your high performance auto needs.

Best Deals on Forged Eagle Crankshafts, Chevy LS, 4.000 Stroke, 2.559 Main, 2.100 Rod Journal, Internal Balance, 58 Tooth Reluctor, Buy now at CNC-Mot

CNC-Motorsports offers over 1000 different rotating assembly and stroker kits for engine brands such as Chevy, Ford, Chrysler, Pontiac and Oldsmobile. We offer everything from mild cast kits with hypereutectic pistons to wild fully forged rotating assembly kits to meet your racing needs.

Best Deals on Eagle Crankshafts, Forged Steel Mitsubishi 4G63 7-bolt 93-Up, 3.465 Stroke (88mm) Stock Stroke, Buy now at CNC-Motorsports

Based out of Brookings, South Dakota CNC-Motorsports started in a basement with carburetors and has since grown into the go-to shop for high-quality performance parts for performance enthusiasts. From competition racers to classic street cars, we have you covered.