| Porting guide 429/460 pictorial |
| pg.-5 |
| This view shows the D3VE-A2A short turn. Again notice the greater distance before the short turn is layed back. In the early castings this distance is about 1/3 of what is shown here |
| Note also that there is an apparent line of demarcation between the suggested straight shot off of the valve seat and the beginning of the short turn. |
| This is an Edelbrock RPM head. This is the shape to look for. Notice the gentle radius after the straight shot off the seat. There is still more work to be done here for max flow. |
| Gently lay back the short turn radius to the crest or to the point where the floor is highest. You should lower the crest but do this later when you will angle this high point parallel with the valve seats inclination angle. DO NOT lower the crest on any D0VE-A&C or C9VE or C8VE casting number heads. Only on the later castings. 12-02 |
| More iron short turn pics and tips |
