| Cylinder Head Style: |
Assembled |
| Cylinder Head Material: |
Aluminum |
| Cylinder Head Finish: |
Natural |
| Combustion Chamber Volume (cc): |
70 |
| CNC-Machined Combustion Chamber: |
Yes |
| Intake Runner Volume (cc): |
235cc |
| Exhaust Runner Volume (cc): |
80cc |
| CNC-Machined Intake Runner: |
Yes |
| CNC-Machined Exhaust Runner: |
Yes |
| Intake Port Shape: |
Cathedral |
| Intake Port Location: |
Standard |
| Exhaust Port Shape: |
Oval |
| Exhaust Port Location: |
Standard |
| Intake Valves Included: |
Yes |
| Intake Valve Diameter (in): |
2.080 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): |
1.300 in. |
| Damper Spring Included: |
No |
| Number of Springs Per Valve: |
Dual |
| Retainers Included: |
Yes |
| Retainer Material: |
Titanium |
| Locks Included: |
Yes |
| Lock Style: |
7 degree |
| Valve Stem Seals Included: |
Yes |
| Valve Stem Seal Style: |
Viton® fluoroelastomer |
| Rocker Arm Studs Included: |
No |
| Rocker Arms Included: |
No |
| Rocker Arm Nuts Included: |
No |
| Guideplates Included: |
No |
| Valve Cover Mounting Style: |
Centerbolt |
| Accessory Bolt Holes Drilled: |
Yes |
| Intake Valve Angle: |
13.5 |
| Exhaust Valve Angle: |
13.5 |
| 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. |
| Notes: |
These cylinder heads are not designed as a stock replacement, they can only be used on LS-based engines with a minimum bore diameter of 4.030 in. Must be used with roller rocker arms. |
