Executive order
D-481
Feuling R&D
Vehicle applications
No vehicle applications were preserved for this order.
Part records
| Part number | Model/specification | Modification | Remarks |
|---|---|---|---|
| 1986 through 1999 General Motors trucks equipped with the 7.4L engine | The 7.4L Cylinder Heads are designed to directly replace the stock set of cylinder heads and are manufactured out of aluminum. The Cylinder Heads include two fully assembled cylinder heads, two sets of rocker arms, a complete set of pushrods, and two valve covers. No modifications are made to the vehicle's computer or fuel delivery system. |