Dart Pro1 20 Deg (As-Cast and CNC ) Aluminum Big Block Chevy Cylinder Heads
Maximum competition, high torque, high compression low dome. 8000+ RPM, 500+ cubic inches. Dart developed the first successful aftermarket aluminum heads for the big block Chevy engine platform and we've done it again! We have continued to refine our revolutionary designs through our in house research and development program and now offer the latest of our advancements in the PRO1 20 Deg 440cc Aluminum cylinder heads. The Dart PRO1 20 Deg heads deliver superior performance, by utilizing 440cc runners in a raised asymmetrical port design, and feature a 20 Deg rolled valve angle with redesigned shallow combustion chambers. These heads are ideal for maximum effort naturally aspirated, big boost forced induction, or nitrous applications.
Maximum competition, high torque, high compression low dome. 8000+ RPM, 500+ cubic inches. Dart developed the first successful aftermarket aluminum heads for the big block Chevy engine platform and we've done it again! We have continued to refine our revolutionary designs through our in house research and development program and now offer the latest of our advancements in the PRO1 20 Deg 440cc Aluminum cylinder heads. The Dart PRO1 20 Deg heads deliver superior performance, by utilizing 440cc runners in a raised asymmetrical port design, and feature a 20 Deg rolled valve angle with redesigned shallow combustion chambers. These heads are ideal for maximum effort naturally aspirated, big boost forced induction, or nitrous applications.
- Designed to use conventional BBC intake manifolds
- Requires use of shaft mounted rockers
- Requires special pistons
- HIP (Hot Isostatic Pressed) Casting
- Solid heads available by special order
- MUST use Copper seats with Titanium Valves
- Heads are sold individually
Information:
Dart Pro1 20 Deg (As-Cast and CNC ) Aluminum Big Block Chevy Cylinder Heads| Attributes | |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Category | Cylinder Heads |
| Category Hierarchy | Heads>Big Block Chevy>Pro1 |
| CNC Ported | Yes |
| Combustion Chamber Volume | 97.00 |
| Country of Origin (Primary) | US |
| Cylinder Head Material | RMR Cast Aluminum Alloy |
| Cylinder Head Series | Pro1 |
| EBAY Category ID | 33617 |
| Emission Code | Legal US |
| Engine | Big Block |
| Engine - Web | Big Block |
| Engine Type | ICE |
| Exhaust Valve Diameter | 1.800 |
| Hazardous Material Code | N |
| Industry | Automotive |
| Intake Runner Volume | 440.00 |
| Intake Valve Diameter | 2.400 |
| Life Cycle Status Code | Available to Order |
| Make | Chevrolet |
| Make - Web | Chevrolet |
| Material | RMR Cast Aluminum Alloy |
| NAFTA Preference Criterion Code | B |
| Port Volume | 440.00 |
| Product Type | Engine Cylinder Head |
| SDR Required Flag | N |
| Series | BBC Pro1 Aluminum Chevrolet Big Block Heads |
| Subcategory | Cylinder Heads |
| Title - Web | Pro1 Chevrolet Big Block Head - 440.00 CC Port, 97.00 CC Chamber |
| Valve Angle | 20 |
| Valve Spring Diameter | 1.625 |
| Valve Spring Maximum Lift | 0.850 |
| Valve Spring Type | Double |
| Warranty Time | 30 |
| GTIN | 00807051012187 |