I read some time ago ( before I had my 928 ) about Ford guys building " long rod" engines. Instead of doing the whole crank,rod,piston thing to build a stroked engine, they were simply using longer rods and custom pistons with the wrist pin in a different location.From what I remember the results were good. Would this method be possible in the 928 engine? Seems like it might work if there is room for this type of mod.

 

You are missing a key ingrediant, you must change the stroke. What you have alluded to is a change in the rod to stroke ratio.

 

Greg is correct: If you don't change the crankshaft the stroke, and displacement, will be the same. Maybe get some more power through changing geometries and getting a better mechanical advatage with a longer rod.

 

They're probably bumping up the compression ratio while increasing the rod to stroke ratio.

 

I'm guessing what is meant is combining the longer rod with the stroker crank in order to maintain compression ratio.....I think

 

My Dad was a Ford guy since "sleeper" meant dropping a flathead V8 in a model T and running one exhaust manifold into a super-quiet muffler and the other through the stock exhaust(so it would still sound like a stock T until it baked the tires off) so I've had an earful(or two) of this stuff.

Early Ford slugs tended to be pretty heavy. There was a huge lump of useless metal between the wrist pin and the crown. Long-rod conversions were done on engines that were built to rev(opposite of stroker) because the shorter piston/longer rod made for a lighter assembly overall. This sort of thing was common in race classes that did not allow displacement changes but where every last pony needed to be extracted.