Bare Head Pair – Rectangle Intake Ports 255cc, 11 Degree Valve Angle
4 Bolt Head Bolt Design
Material | Aluminium
Combustion Chamber Volume | 69cc
Intake Runner Volume | 255cc
Intake Port Size H x W | 2.580″ X 1.285″
Exhaust Runner Volume | 112CC
Exhaust Port Size H x W | 1.685″ X 1.795″
Intake Valve Size | 2.165″ (01-2800-8)
Exhaust Valve Size | 1.600″ (01-2820-8)
Valve Stem Diameter | 8.00mm
Valve Length | + 0.500″
Valve Angle | 11 Degree
Valve Guide Seal Diameter | 0.500″
Valve Guide Material | Manganese Bronze
Valve Spring Base Diameter | 1.640″
Rocker Type | LS3 (Rocker Arm Stand Included)
Deck Thickness | 0.750″
Flow Data @ 28″(CFM) With 2.165″ & 1.600″ Valves | |
Intake | |
@.300″ = 197 | |
@.400″ = 249 | |
@.500″ = 301 | |
@.600″ = 325 | |
@.700″ = 327 | |
Exhaust | |
@.300″ = 141 | |
@.400″ = 175 | |
@.500″ = 202 | |
@.600″ = 217 | |
@.700″ = 219 |
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