V8 to V4 Conversion: Get 40 Percent Better Gas Mileage

A V8 to V4 engine conversion will give you much better gas mileage for a small reduction in performance.

058 v-4 conversion better gas milage 01.jpg
Wrap the four oiling holes that serve the center two cylinders' rocker arms (cylinders three and five) with brass shim stock. Secure these makeshift seals with 1" hose clamps