Packard Forum Index » V-8 (1955-56)

By offset rod, I mean cap at 45*/135* angle to the beam.

I'm not sure why u are asking. Nonetheless, the slanted rod cap is primarily used in VERY UNDER square engines. I just don't see what benefit a slanted cap would have in the V8 regardless of stroke. There is cam clearence issues too.

OR to put it another way, it is really not feasible to stroke the Packard V8 (nor just about any other V8) long enuf to require a slanted rod cap.

OR, are y trying to come up with some kind of Des axe crank shaft arangement???? Des axe would not apply to V8. Streight 8 yes. Not v8

Thank you, PackardV8. What is a Des axe crankshaft, I never heard of one before?

Des axe is where the centerline of the main bearings is offset from the centre line of the cylinder bore. Popular mostly in very early 20th century single cylinder or inline engines.

Why do want an offset rod cap type rod???

With conventional con rod in V8, top of rod thru-bolt points toward camshaft and nut at bottom points toward side of crankcase. Offset rod has round smooth part of big end towards cam, flat sides of big end towards side of crankcase. Offset rod enables much more max stroke.