Engine of the Week - Capps Performance Engineering

Today we’re talking about the details of a 383 cid small block Chevy build done by Capps Performance Engineering in Asheboro, NC for a ’73 Z28 Camaro restoration. The customer is actually one of Robbie’s high school friends and he’s had this car since he was 16 years old. To begin the 383 Chevy build, Robbie used a stock, two-bolt block because the main webbing offers a better foundation. However, the two-bolt main caps are a weak point, so he put in billet splayed four-bolt caps. From there it got line honed and bored using torque plates. The 383 Chevy engine also features Brodix heads, a Scat rotating assembly, Wiseco pistons, gas-ported rings from Total Seal, a street manifold, and a QuickFuel carburetor. For final touches on the 383 build, Capps went with an E3 ignition system, which included a billet distributor and spark plugs, as well as PennGrade1 for oil. On the dyno, using smaller headers, the small block Chevy produced 565 horsepower and 570 ft.-lbs. of torque, which is pretty stout for 383 cubes. The engine recently got installed in the Z28, and Capps Performance Engineering has another satisfied customer.