Brand:
AT Racing World
Part Number:
FF281.1001
Part Type:
Cylinder Heads
Cylinder Head Style:
Assembled
Cylinder Head Material:
Aluminum
Cylinder Head Finish:
Natural
Combustion Chamber Volume (cc):
64 cc
CNC-Machined Combustion Chamber:
No
Intake Runner Volume (cc):
195 cc
Exhaust Runner Volume (cc):
n/a
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Shape:
Square
Intake Port Location:
Standard
Exhaust Port Shape:
Square
Exhaust Port Location:
Standard
Spark Plug Style:
Straight
Comp. Valve Job:
No
Intake Valves Included:
Yes
Intake Valve Diameter (in):
2.020 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in):
1.600 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in):
0.650 in.
Outside Diameter of Outer Spring (in):
1.450 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Chromoly steel
Locks Included:
Yes
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Rocker Arm Studs Included:
No
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Center & Perimeter Bolt
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
23 deg.
Exhaust Valve Angle:
23 deg.
Valve Guides Included:
Yes
Valve Guide Material:
Bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Quantity:
Sold as a pair.
Calculator
Compression Calculator
Assembly Specifications Max Lift: .610″ Coil Bind: 1.060″ Intake Install: 135lbs @ 1.8 Exhaust Install: 135lbs @ 1.8 Closed Seat Pressure: 135lbs Open Seat Pressure: 300lbs