imcqueen

Doubt so also, all the big blocks drink down the fuel. About the only way to get any kind of mileage while having the torque of a big block is to take and go with diesel but still are limited by the design of a truck not being designed to be aerodynamic. Not even the late model trucks are much better than the old trucks in the aerodynamic department. Their mileage is from the use of OD and lock up converters in conjunction with EFI. The 5.0 Coyote we installed in a lwb '82 F150 with a early 2000s automatic mustang transmission was able to get that truck put down a decent 20 mpg highway with a bed cover on it. Thats about on par with Ford trucks of the same era as the 5.0 Coyote with the same engine. On the C6 what would help them out is supposedly today if you rebuild them like Broader Performance does you get less slip than the Ford built units as they were when new and you also have better converters like the XTM from Hughes which I will be running in my Broader Performance Wide Ratio C6, that converter is supposed to have less slip than OE converter, better torque multiplication than OE converter, and it pumps I think it said 2 gph more than a OE converter for better cooling. Still it wont be on the same level like say a E4OD with its lock up converter but it will be a day and night difference over a Ford OE spec C6 though. Thanks guys! Yeah I rebuilt the C6, and got a new Hughes TC that’ll go in when I put it all back together.

I’m planning to put an 1800lbs slide in camper in the bed.. I’m guessing probably 8 mpg with that..

1986 F-250, 4x4 SCLB, 460, C6, 4:10 gears. Holley 600cfm carb. I’m in the middle of building a new 460 (OEM spec, straight-up timing). C6 just got a fresh rebuild, and a new torque converter. I know this old girl only gets about 10mpg (I’m assuming the new engine will be no different).. My question is this, do y’all consistently get 10mpg? Or does it drop significantly with city driving, or running 80mph on the highway. Is the 10mpg achieved by only running 55 on flat highways? I’ve had this truck for about a decade, but I had it as a plow truck at my cabin and only drove her on the roads a handful of times - and the last few months I was driving her daily she was running on 6 cylinders (7 & 8 were full of coolant and leaking heads), so I never really got a chance to test out her mileage in various scenarios. I love driving this truck, so I’m tempted to make it a DD (and slide-in camper for adventures).. but I’m curious how ya’ll’s mileage has been when DD the 460.

Thanks! It’s a cool town for sure. I really like it here. 30 minutes from the Denver metro area. But far enough away I don’t have to deal with the city. All of my hobbies keep me in the mountains, so I’m right at home here.

Hey Gary, I’m in 80452, wanna add me to the map?

I’ve got an ‘86 F-250 XL, 460, C6, 4x4. Truck drives great (and will again when I finish the engine rebuild). My question is regarding a newer slide-in camper.. anything I should know about putting a slide-in camper in my Bullnose? Would you do it, or would I be better off buying a newer truck to carry it? I know my GVWR can handle it. I know I’m gonna get shit fuel mileage. But my last adventure set up was a bumper pull teardrop that I pulled with a 2019 Tundra (and that only got 12-14mpg).

It does not have the mechanical eccentric fuel pump.

Ditto the water pump backing plate. Is your engine going back in as stock as possible? What are you using for break in oil? I haven’t thought about break-in oil yet.. I’m assuming this will need something with a zinc additive.. Going back in stock, but with straight up timing, instead of 4* retarded.

Sounds like I’ll stick with the stock engine, and advance the timing to 0° Thanks! Right before I pulled the old engine out of the truck she was hauling a 2500lbs camper up I-70 in the mountains, and happily running 80mph on 7 cylinders and with a broken flex plate. I’m sure the new engine will do just fine.

Does this look like the right one? Also, do you feel like that RV cam was worth it? I plan on dropping a slide in camper in the back for ski and bike trips..

Copy. I’ll just leave the factory internals. I’m guessing that this factory replacement will likely be 4° retarded. Is that easy enough to advance?

I’ll go check it this afternoon. If it is retarded, is that something I can easily change? (I’m not familiar with engine building) And just like the thought about the cam.. I’d have to pay someone to do it, or take it to my buddies place to get that work done.

Engine and trans came out nice and easy. Left the front clip in place, just pulled the core supports and went out the front. Been waiting on parts for months.. 🙄 C-6 was rebuilt by a local shop, he said it was in great shape. Working on assembling the engine now….. but now I’m wondering - should I leave it stock, or throw a cam in there while I have it sitting on a stand? Would a 460 come alive with a cam? Not that I’m expecting a race truck, but a little more power would be nice.

Got distracted by life stuff and a new job. I’m back and ready to finish my truck!

Anyone in the Denver area interested in lending a hand or offering some friendly guidance?