Comparison of motor parts

[Don Sawtell]

Hi guys Does anyone have any pictures of the internal parts of the cummins ford chevy engines? I saw a picture a while a go showing the difference in the connecting rods between the three engines. Be nice to see the same today



Thanks

2006 3500 DRW Grantelli fuel miser guages etc.

 

[WCPoe]

Don,

here's the two that I have on my computer. There may be others.

Bill

 

[betterthanstock]

Ok, but keep in mind that to produce the same torque and hp, an 8 cylinder only needs to produce 75% of the power in each cylinder as a 6 cylinder. So, take a scale, and if the ford rod weighs 75% as much, it is equally strong for what it needs to do. And if you wanted a single cylinder engine, it would need a huge rod.....

 

[JRG]

b. t. s. thats a good observation, although you also have that many more moving/non-moving parts. I believe some tug boats are in line 4 cyl. with like 2 foot diameter pistons. To me strenght isnt really an issue, its rotational mass, less parts are good.

 

[Vaughn MacKenzie]

Pretty sure the first photo is a photoshop job, it's been discussed more than once. Originally it was labeled as Cummins vs. 7. 3L powerstroke vs. GM 6. 5L.

The second pic is legit though, showing a 3rd Gen Cummins rod. You'll notice its design was changed over the 24V rod shown in the first photo.