| Product Line | Pro 1 |
| Chamber Volume | 64 cc |
| Intake Runner Volume | 215 cc |
| Intake Port Shape | Rectangle |
| Intake Port Height | 2.150 in |
| Exhaust Port Shape | Square |
| Exhaust Port Height | 1.375 in |
| Intake Valve Size | 2.050 in |
| Exhaust Valve Size | 1.600 in |
| Valve Spring Included | No |
| Rocker Studs Included | No |
| Valve Guide Included | Yes |
| Perimeter Mount Valve Cover | Yes |
| Valve Seat Included | Yes |
| Exhaust Valve Seat Material | Ductile Iron |
| Combustion Chamber Finish | As Cast |
| Exhaust Runner Finish | As Cast |
| Exhaust Valve Angle | 23 Degree |
| Material | Aluminum |
| Finish | Natural |
| Assembled/Bare | Bare |
| Plug Angle | Angle |
| Exhaust Runner Volume | 75 cc |
| Intake Port Location | Stock |
| Intake Port Width | 1.190 in |
| Exhaust Port Location | Stock |
| Exhaust Port Width | 1.325 in |
| Intake Valve Included | No |
| Exhaust Valve Included | No |
| Valve Seal Included | No |
| Pushrod Guide Plate Included | No |
| Valve Guide Material | Bronze |
| Center Mount Valve Cover | Yes |
| Intake Valve Seat Material | Ductile Iron |
| Valve Seat Finish | Machined |
| Intake Runner Finish | As Cast |
| Intake Valve Angle | 23 Degree |
| Accessory Bolt Holes | Drilled and Tapped |
| Color | Natural |
| Quantity | Each |
| Package Weight | 28.45 lbs (12.90 kg) |
| Package Width | 8.9 in (22.61 cm) |
| Package Length | 21.9 in (55.63 cm) |
| Package Height | 6.4 in (16.26 cm) |
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