Overview
Our HP Performance Alloy Heads deliver exceptional performance in all Chrysler Big Block 383-400-413-426-440ci engines.
Supplied READY TO FIT: valves, valve guides, valve springs, valve retainers and valve collets all fitted.
Cylinder Head Specifications
| Cylinder Head Material | A356.0 Aluminum T6 |
| Combustion Chamber Volume | 82cc |
| Exhaust Runner Volume | 70cc |
| Intake Runner Volume | 210cc |
| Spark Plug Style | Angle |
| Intake Valve Diameter (in) | 2.14 |
| Exhaust Valve Diameter (in) | 1.81 |
| Valve Material | Stainless Steel |
| Valve Tip Hardness | Above 48 HRC |
| Spring install height (in) | 1.73 |
| Maximum Valve Spring Lift (in) | 0.6 |
| Outside Diameter of Outer Spring (in) | 1.55 |
| Number of Springs Per Valve | Single |
| Lock Style | 7 degree |
| Valve Stem Seal Style | Vition seal |
| Pushrod diameter | 3/8 |
| Valve Angle | 15 degree |
| Valve Steam | 11/32 |
| Valve Guide Material | Manganese bronze |
| Valve Seat Machine Style | Intake 5 angles |
| Exhaust 5 angles | |
| Valve Seat Material | Power metallurgy |
| Valve Seat Max Pressure | 96 HRB (35 HRC if required) |
| Oiling Style | Through pushrod |
| Exhaust Port Location | Stock |
| Flow Chart: CFM @ H2O | |||||||
| 0.100" | 0.200" | 0.300" | 0.400" | 0.500" | 0.600" | 0.700" | |
| Intake | 70.5 | 146.4 | 200.2 | 237.7 | 255.4 | 272.8 | 280.2 |
| Exhaust | 56.5 | 114.6 | 156.5 | 186.3 | 209.7 | 224.3 | 233.8 |
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Additional Information
| SKU | 107.40435 |
|---|---|
| Factory Comparison | Direct Replacement |
| Sale Unit | Set |