Dart 20 degree cylinder heads. Get the Best Performance with Dart 19705199 Pro 1 20° Big Block Chevy Cylinder Head 440cc [1. 650 in] 19705199 parts at JEGS. 8000+ RPM, 500+ cubic inches. 650 Assembled 4. From the ultimate performance people, come the ultimate 20° conventional cylinder head conversion kits. Now is the time to step up to the next level of performance! The industry is buzzing about the new Dart 20° cylinder heads with the new Reher-Morison proprietary CNC port designs. Jul 8, 2024 ยท Dart’s SHP (Special High Performance) 20-degree 175cc small block Ford cylinder heads provide affordable options for those looking for the weight savings of an aluminum head for a street performance engine. . Shop Now at the Guaranteed Lowest Price! The Dart Pro 1 20 degree 440cc CNC BBC is a high-performance aluminum cylinder head and ideal for automotive enthusiasts seeking top-tier quality and precision. The Dart PRO1 20° heads deliver superior performance, by utilizing 440cc runners in a raised asymmetrical port design, and feature a 20° rolled valve angle with redesigned shallow combustion chambers. BBC PRO1 20° 451cc CNC Cylinder Head – 1. 600 Bore Chamber Maximum competition, high torque, high compression – low dome. These cylinder heads feature advanced port designs and are available in various configurations to suit a wide range of applications, from street performance to heads-up class racing. ueoe vzklcmj hlq ijou ltzfm eqei iydtfj kcp ypsgnjo shan