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| Specifications & Features: | |
| Material | A356 Aluminum |
| Intake Port Volume | 175cc(177.4) |
| Intake seat size | 2.02 |
| Exhaust seat size | 1.60 |
| Intake Port Location | Stock |
| Exhaust Port Volume | 66cc(66.4) |
| Exhaust Port Location | Stock |
| Combustion Chamber Size | 60cc |
| Valve Cover Bolt Pattern | Perimeter Bolt |
| Valve Angle | 20° |
| Valve Spring Pocket Diameter | 1.460" O.D(1.55" is available) |
| Deck Thickness | 0.75 |
| Spark Plug Dimensions | 14mm x .750" |
| Head Bolt Diameter | 1/2" |
| Valve Guide material | Manganese Bronze |
| Valve Guide I.D | 11/32 or 8mm |
| Valve Seat Material | Powdered Metal |
| Accessory Bolt Holes Drilled | Yes |
| Cylinder Head Finish | As Casting |
| Engine Make/Size | Ford 5.8L/351W |
| Guideplates Included | No |
| Heat Crossover | No |
| Lock Style | 7 degree |
| Machined for O-Ring | No |
| Maximum Valve Lift | 0.575 in (14.605 mm) |
| Oiling Style | Through pushrod |
| Outside Diameter of Outer Spring | 1.46 in (37.1 mm) |
| Package Depth | 20 |
| Package Height | 7.38 |
| Package Width | 13.8 |
| Rocker Arm Nuts Included | No |
| Rocker Arms Included | No |
| Shipping Weight | 50 pound |
| Valve Cover Mounting Style | Perimeter bolt |
| Valve Guides Included | Yes |
| Valve Seat Machine Style | 5 ANGLE |
| Valve Seats Machined | Yes |
| Spark Plugs: Champion RC12YC or equivalent | |
| Head Bolts: 7/16" ARP 154-3605 1/2" ARP 154-3603 | |
| Head Studs: 1/2" ARP 154-4003 | |
| Head Gaskets: Fel-Pro 1011-1 | |
| Intake Gaskets: Fel-Pro 1250 | |
| Exhaust Gaskets: Fel-Pro 1415 |
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