Poly 318 vs LA 318 Rocker Shafts?????
The wedge has the inline valves.
Poolyspherical head engines
Semi-Hemi” Polyspherical Head V8 Engines:
241, 259, 270, 301, 315, 325, 331, 354
Engineer Pete Hagenbuch wrote:
I don't know who invented the word “polyspherical” but the design was supposed to maintain the characteristics of the true hemi with one rocker shaft and attendant cost savings. What it wasn’twas a wedge chamber with inline valve stems.
The wedge has the inline valves.
Poolyspherical head engines
Semi-Hemi” Polyspherical Head V8 Engines:
241, 259, 270, 301, 315, 325, 331, 354
Engineer Pete Hagenbuch wrote:
I don't know who invented the word “polyspherical” but the design was supposed to maintain the characteristics of the true hemi with one rocker shaft and attendant cost savings. What it wasn’twas a wedge chamber with inline valve stems.