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Dart Platinum 230 SBC 23° Aluminum Cylinder Head Assembled 11721143P
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Dart Platinum 230 SBC 23° Aluminum Cylinder Head Assembled 11721143P
Dart Pro 1 Aluminum 23° Cylinder Heads
The Pro 1 cylinder head incorporates Pro Stock air flow technology with small, high-velocity runners. It accepts off-the-shelf rocker arms, pistons, manifolds, and headers. Available with 200cc, 215cc, 227cc, or 230cc intake runners with a multi-angle performance valve job and bronze wall valve guides.
- Dart Platinum 230 SBC 23° Aluminum Cylinder Head
- Dart SBC 230cc Pro-1 Head 64cc S/P 2.08/1.60 Assembled 11721143P
- Cylinder Head - Pro 1
- Assembled
- 2.080 / 1.600 in Valve - 230 cc Intake - 64 cc Chamber - 1.550 in Springs
- Straight Plug
- Aluminum
- Small Block Chevy
- Sold as Each
- MPN: 11721143P
Specifications
| Brand | Dart |
| Part Number | 11721143P |
| Product Line | Pro 1 |
| Assembled/Bare | Assembled |
| Chamber Volume | 64 cc |
| Plug Angle | Straight |
| Intake Runner Volume | 230 cc |
| Exhaust Runner Volume | 75 cc |
| Intake Port Shape | Rectangle |
| Intake Port Location | Stock |
| Intake Port Height | 2.180 in |
| Intake Port Width | 1.210 in |
| Exhaust Port Shape | Square |
| Exhaust Port Location | Stock |
| Exhaust Port Height | 1.375 in |
| Exhaust Port Width | 1.325 in |
| Intake Valve Size | 2.080 in |
| Intake Valve Included | Yes |
| Intake Valve Material | Stainless |
| Intake Valve Length | 5.015 in |
| Exhaust Valve Size | 1.600 in |
| Exhaust Valve Included | Yes |
| Exhaust Valve Material | Stainless |
| Exhaust Valve Length | 5.015 in |
| Valve Spring Included | Yes |
| Valve Spring Diameter | 1.550 in |
| Valve Spring Number | Dual |
| Valve Spring Damper | Yes |
| Valve Spring Retainers Included | Yes |
| Valve Spring Retainer Material | Steel |
| Valve Locks Included | Yes |
| Valve Lock Material | Steel |
| Valve Lock Angle | 10 Degree |
| Valve Seal Included | Yes |
| Valve Seal Style | Positive Stop |
| Rocker Studs Included | Yes |
| Rocker Stud Size | 3/8-24 in |
| Pushrod Guide Plate Included | Yes |
| Guide Plate Pushrod Size | 5/16 in |
| Valve Guide Included | Yes |
| Valve Guide Material | Bronze |
| Perimeter Mount Valve Cover | Yes |
| Valve Seat Included | Yes |
| Intake Valve Seat Material | Ductile Iron |
| Exhaust Valve Seat Material | Ductile Iron |
| Valve Seat Finish | Machined |
| Combustion Chamber Finish | As Cast |
| Intake Runner Finish | As Cast |
| Exhaust Runner Finish | As Cast |
| Intake Valve Angle | 23 Degree |
| Exhaust Valve Angle | 23 Degree |
| Accessory Bolt Holes | Drilled and Tapped |
| Material | Aluminum |
| Color | Natural |
| Finish | Natural |
| Quantity | Each |
Description
Product code: Dart Platinum 230 SBC 23° Aluminum Cylinder Head Assembled 11721143P
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