The Most Versatile Small Block Cylinder Head Upgrade
Dart’s SHP line of cast aluminum cylinder heads are the perfect performance upgrade for Small Block Chevy and Small Block Ford engines in everything from street, strip and circle track to truck and marine applications. Learn more here.
Dart SHP cylinder heads for Small Block Chevy and Small Block Ford engines are built with the same American-made quality you know and love and are designed to be a reliable, fairly-priced upgrade for performance small block engines, from street to strip to circle track. Offered for Small Block Chevy engines in 180cc and 200cc, 23° options, and for Small Block Fords in 175cc and 205cc, 20° options, these cast aluminum cylinder heads can be ordered bare or assembled with Dart and its trusted partners’ components.
Small Block Chevy 180cc 23°
Dart’s SHP (Special High Performance) 23° 180cc cylinder heads provide an affordable option to those looking for the weight savings of an Aluminum head for a street performance engine. The SHP is designed to work with most off the shelf components. These heads deliver maximum torque and throttle response from idle to 6,000 RPM, and are best for 327 – 400 cubic inch engines.
The SHP head’s precision cast ports are designed to offer excellent flow and power without the need for CNC porting. Optimized chambers increase combustion efficiency, and multi-angle intake seats and radiused exhaust seats dramatically increase performance. Manganese Bronze valve guides increase the life of the head.
| 64cc Combustion Chambers | ||
| Part Number | Configuration for Use | Max Lift |
| 126111 | Bare Head | |
| 126121 | 1.250″ Single Springs for Hydraulic Flat Tappet Cam | .510″ |
| 126122 | 1.437″ Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ |
| 72cc Combustion Chambers | ||
| 126211 | Bare Head | |
| 126221 | 1.250″ Single Springs for Hydraulic Flat Tappet Cam | .510″ |
| 126222 | 1.437″ Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ |
Small Block Chevy 200cc 23°
Dart’s SHP (Special High Performance) 23° 200cc cylinder heads provide an affordable option for larger displacement street performance engines. The SHP is designed to work with most off the shelf components. These heads deliver best performance at mid-range to 6,500 RPM and are best for 383 – 434 cubic inch engines.
The SHP head’s precision cast ports are designed to offer excellent flow and power without the need for CNC porting. Optimized chambers increase combustion efficiency, and multi-angle intake seats and radiused exhaust seats dramatically increase performance. Manganese Bronze valve guides increase the life of the head.
| 64cc Combustion Chambers | ||
| Part Number | Configuration for Use | Max Lift |
| 126311 | Bare Head | |
| 126322 | 1.437″ Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ |
| 72cc Combustion Chambers | ||
| 126411 | Bare Head | |
| 126422 | 1.437″ Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ |
Small Block Ford 175cc 20°
Dart’s SHP (Special High Performance) 20° 175cc cylinder heads provide an affordable option to those looking for the weight savings of an Aluminum head for a street performance engine. The SHP is designed to work with most off the shelf components.
The SHP head’s precision cast ports are designed to offer excellent flow and power without the need for CNC porting. Optimized chambers increase combustion efficiency, and multi-angle intake seats and radiused exhaust seats dramatically increase performance. Manganese Bronze valve guides increase the life of the head.
Features:
- Manganese Bronze valve guides.
- Uses 3/8” screw-in rocker studs. 7/16” upgrade available.
- Hardened & radiused exhaust seats.
- Assemblies include stainless steel valves, premium springs, locks, retainers, guide plates and seals.
| Part Number | Configuration for Use | Max Lift | Chamber CC |
| 128111 | Bare Head | – | 58 |
| 128121 | 1.250” Single Springs for Hydraulic Flat Tappet Cam | .510″ | 58 |
| 128122 | 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ | 58 |
| 128211 | Bare Head | – | 62 |
| 128221 | 1.250” Single Springs for Hydraulic Flat Tappet Cam | .510″ | 62 |
| 128222 | 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ | 62 |
Small Block Ford 205cc 20°
Dart’s SHP (Special High Performance) 20° 205cc cylin-der heads provide an affordable option to those looking for the weight savings of an Aluminum head for a street performance engine. The SHP is designed to work with most off the shelf components.
The SHP head’s precision cast ports are designed to offer excellent flow and power without the need for CNC porting. Optimized chambers increase combus-tion efficiency, and multi-angle intake seats and radi-used exhaust seats dramatically increase performance. Manganese Bronze valve guides increase the life of the head.
Features:
- Manganese Bronze valve guides.
- Uses 3/8” screw-in rocker studs. 7/16” upgrade available.
- Hardened & radiused exhaust seats.
- Assemblies include stainless steel valves, premium springs, locks, retainers, guide plates and seals.
| Part Number | Configuration for Use | Max Lift | Chamber CC |
| 128215 | Bare Head | – | 58 |
| 128225 | 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ | 58 |
| 128315 | Bare Head | – | 62 |
| 128325 | 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam | .650″ | 62 |