Here's something that's not seen very often. 1968 tilt cab 700 series with a 361 2 barrel and angled plug heads similar to small blocks. Probably geared more towards durability than performance.
I ran Ford's version of this application in the 1970s. It was what started out as a Ford Falcon inline six. Same operating parameters as a tractor, full rpms for hours at a shot running the pneumatic blowers to unload dry bulk tankers. Those engines were tough, the only time they failed was if we ran one out of coolant letting it run on the way to a delivery, to avoid the cold start problem in winter (wind chill would turn the engine oil to tar). I carried a spare starter with me in the truck, and changed them often in the field. Early in the game a parts guy at a Ford dealership told me to just use a '78 Granada starter in the future, rather than trying to find an "industrial six" in the parts book. Engine shown in picture was on a 1976 Fruehauf dry bulk tanker, which I was pulling with my first truck, a '71 International Transtar, in 1979, when I was 26.Old tractors also run super smooth. Old tractors also have a compression of like 6. Find a video of an idleing Oliver with a 6 cyl. waukesha from the early 60's (gas) or a proper running IH 4 cyl gas from the 50's like an A or a cub, even an H. Long running, high rpm constant load calls for a different design approach.(edit, I should clarify, open throttle. Tractors run at 2000 rpm) In the auto world, Chrysler did it best going back to the early hemis powering sirens etc. I think it's why 318's made it into military and such. Wide open running under hard load for hours on end didn;t phase them.
MOST, IF NOT ALL industrial engines were built to mid RPM high load operation and had low compression ratios to operate on low octane fuel.....sometimes they used SODIUM FILLED exhaust valve stems for better heat dissipation characteristics AND usually had exhaust valve rotators for better exhaust valve seat snd face angle wear......industrial engines are somewhat unique.....sometimes the block casting used a higher percentage of nickel in the alloy for strength.......just taking out loud......Found this on Moparts .....
They were industrial heads & used a longer pushrod. Different heads, intake & exhaust manifolds, water pump, cam and cam drive.
View attachment 1578721
View attachment 1578722
[/URL]
I reside smack dab in theMOST, IF NOT ALL industrial engines were built to mid RPM high load operation and had low compression ratios to operate on low octane fuel.....sometimes they used SODIUM FILLED exhaust valve stems for better heat dissipation characteristics AND usually had exhaust valve rotators for better exhaust valve seat snd face angle wear......industrial engines are somewhat unique.....sometimes the block casting used a higher percentage of nickel in the alloy for strength.......just taking out loud......
BOB RENTON