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"

• Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up.
• NOW IN SMEATON GRANGE!