| Combustion Chamber Volume | 72cc |
| Fitment | Vehicle Specific |
| Cylinder Head Type | Standard |
| Deck Thickness | 5/8in |
| Emission | Non-Emissions |
| Engine Make/Size | Pontiac 326-455 |
| Exhaust Port Locaiton | Stock Ram Air IV |
| Exhaust Valve Diameter | 1.66in |
| Exhaust Volume | 175cc |
| Finish | Cast Aluminum |
| Guideplate | Hardened Steel |
| Intake Valve Diameter | 2.11in |
| Intake Volume | 215cc |
| Preparation | Requires Professional Preparation (Bare) |
| Pushrod Diameter | 5/16in |
| Rocker Stud | 7/16in |
| Spark Plug Fitment | 14mm x 3/4 reach, gasket seat |
| Type | Bare |
| Usage | Street/Performance |
| Valve Angle | 14deg |
| Valve Guides | Manganese Bronze |
| Valve Spring Diameter | 1.46in |
| Valve Spring Max Lift | .575in |
| Valve Stem Diameter | 11/32in |