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Continental demonstrated 250HP and 550ftlb and believed that 300HP was possible with full multifuel capabilities.

Hercules Engines D4800 & D5000

While it may not be a problem with the dry sleeve multifuel, running a zero-pressure cooling system will increase the likelihood of cavitation erosion in wet sleeve engines.

Thanks for the confirmation. I was in a hurry at the end and probably missed something obvious. Thanks!

This agrees with what I have read in that the high compression ratio hurts efficiency due to higher frictional losses. The engine design books that I have read state that the minimum compression ratio that permits easy starting should be used. I read some of the farm tractor forums to see...

Yes, it is a larger, later model version of the 331.

I changed the grill to a multi variant. It seems like the hinges are slightly further aft on the gas truck. I'd hate to start modifying things if there is something obvious that I am missing. I plan to keep the radiator to use with the farm tractor repower. It is a strange version with the...

Several things led to this but basically I wanted to try something different and I got a line on everything to do the swap (engine/ tranny/ radiator, and all the bits and pieces) for a price that I could justify. The 400 Reo worked flawlessly and will give new life to a Farmall F20.

I traded labor and a snow plow for a good deal on an LDT-465-1C engine and radiator and swapped it for my 400 Reo this weekend. The multi is a MUCH tighter fit than the gas engine. Operating in the same RPM range, pretty close to the 400 gas. Hoping to increase it a bit with more fuel and...

The ONLY part that you got right is that most dynos measure torque. Those that have a load cell mathematically calculate horsepower from torque and rpm. However, you CAN measure HP directly. One way is to couple an engine to a generator, connect it to a load, measure the power dissipated...

I just bought a rotisserie stand. I'll take some pics of the hangars this weekend.

You are mostly correct. Power over time is energy (ie. kW*hour).

Use a ford/ chrysler filter with the bypass built in.

It is in southeast SD (Yankton). I have three to sell. I can run the first two. 1) $200 OA331: new exhaust manifold, full flow oil filter, civvy ignition, runs great but needs head gasket (low compression on two adjacent cylinders and coolant in oil), good oil pressure, silicone valve cover...

If you were closer, I'd sell you one of my good spare powerpacks (engine/ tranny, radiator) for $200. I have a lot of spare parts, too. Let me know if I can help.

I had great luck with GMA. You are going to pay a lot more anywhere else. I'd keep trying.

GMA offers a straight green top but you have to specifically ask for it.

I bought two of the gasser wiring harnesses; one appeared to have provisions for the turn signals.

The carburetor is a Holley 885-FFG. I don't have the complete manual to give you the correct float adjustment but you'd be pretty close setting up the float so the arm is perfectly horizontal.

I've used Sn95/Ag5 solder (same as for cu plumbing) and acid core flux with a MAPP gas torch.