360 vs 361?
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360 vs 361?
Originally posted by chrowen
I am not trying to be difficult, but explain one thing to me. I know the bore diameter or stroke length don't change, but there is still physically more volume inside the cylinder due to the larger dish on the head of the piston. Why doesn't that account for more cubic inch displacement? Maybe a better question is, what is the difference between static volume inside the cylinder and swept volume inside the cylinder?
I trust what you say; I just like to soak up as much input as I can get.
I am not trying to be difficult, but explain one thing to me. I know the bore diameter or stroke length don't change, but there is still physically more volume inside the cylinder due to the larger dish on the head of the piston. Why doesn't that account for more cubic inch displacement? Maybe a better question is, what is the difference between static volume inside the cylinder and swept volume inside the cylinder?
I trust what you say; I just like to soak up as much input as I can get.
because even though you have an extra volume in the piston it's still there at the top of the stroke, your bigger, but you've gained nothing for displacement. if you could fill the cylinder while it was at it's highest point and at it's lowest point the gain would be the same as when the extra volume wasn't there. say you take your 390 and made the cylinders 5 inches longer, can you now say you have a 800 or whatever size it would be? your air that is displaced by the piston moving is still just 390 cubic inches
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360 vs 361?
The FE bible (The Christ book) states the FT or 391 has a 3.79" stroke where a 390 has a 3.784" stroke. But, the 361 and the 360 share the exact same bore (4.05") and stroke (3.5"). Hope this sheds some light on a few things.
How ever shoe does have some good insight and is probabl right that the 361 could have slightly different dimensions to aquire the extra cube. But, I think the standard 360 could fairly easily be as big as 362 and still be in tolerance. That is my opinion.
Scotty
How ever shoe does have some good insight and is probabl right that the 361 could have slightly different dimensions to aquire the extra cube. But, I think the standard 360 could fairly easily be as big as 362 and still be in tolerance. That is my opinion.
Scotty
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351, 360, 361, 361ford, differance, difference, differences, diffrences, engine, engines, ford, pistons, points, truck, vs361
