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| SBC 180 | ||
| SBC 180 Straight Plug | ||
| Specifications & Features: | ||
| Material | A356 Aluminum | |
| Intake Port Volume | 180cc | |
| Intake seat size | 2.02 | |
| Exhaust seat size | 1.6 | |
| Intake Port Dimension | 2.050" H x 1.250" W x 5/16° Radius | |
| Intake Port Location | Stock | |
| Exhaust Port Volume | 64cc | |
| Exhaust Port Dimension | 1.450" H x 1.550" W | |
| Exhaust Port Location | 0.100" Raised | |
| Combustion Chamber | 65cc or 72cc | |
| Valve Cover Bolt Pattern | Perimeter Bolt | |
| Valve Angle | 23° | |
| Valve Spring Pocket Diameter | 1.460" O.D | |
| Max Valve Spring Pocket Machining | 1.750" O.D | |
| Warning: Do not machine spring pad any deeper. | ||
| Deck Thickness | .750" | |
| Minimum Bore Diameter | 4.000" | |
| Flat Mill | .006" per cc 60cc Maximum | |
| Angle Mill | .009" per cc 55cc Maximum | |
| Note: Angle mills might require .120 thick intake gasket. | ||
| Minimum Cross Sectional Area | 1.810 sq. in. | |
| Spark Plug Dimensions | 14mm x .750" w/Gasket Seat | |
| Carb EO# | D-250-2 | |
| Straight Plug | Angle Plug option | |
| Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit MIC heads. | ||
| 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length | Made by Ferrea china factory | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length | Made by Ferrea china factory | |
| PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, | ||
| 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500 | ||
| 7° Manley Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D | ||
| 7° Bead Lock Valve Keepers | ||
| 3/8" Rocker Studs | ||
| 5/16" Guide Plates | ||
| Viton Valve Seals .600" O.D x .495" I.D | ||
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | ||
| Powder Metallurgy Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep | ||
| Powder Metallurgy Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | ||
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