For those with 460's.....
Junior User
Joined: Jun 2003
Posts: 83
Likes: 0
From: Rome, Italy
10-13 MPG at Best.
Its been a while since I posted because I am in the Army and just got sent to Italy this summer. Anyways, the truck is in the garage back home waiting for some paint and a little bodywork. Prior to leaving I had switched over to a Holley 780 as well, and if I kept my foot out of it (with a T-18 4Spd) I could get between 11-13. But the engine needs some work as well. When I get back next summer and get that done I'll keep you posted as to what I did and what differance it made. Good luck with yours.
Post Fiend
Joined: Oct 2003
Posts: 9,176
Likes: 4
From: Western Central NV
My 86 F250 4x4 460, C-6, 3:55 gears, Edlebrock Performer, Holley 4160, 600 CFM. I get 9.5-10.5 MPG empty real regular. We own a 10,000# Travel Trailer, and at 65-70 MPH get 5 MPG, at 60 MPH 5.5-7.0 MPG. I have 171,000 miles on this truck engine never had heads off, I'm not sure, but I'm pretty sure, the original timing chain is still in.
Senior User
Joined: Mar 2004
Posts: 274
Likes: 0
From: MI
Originally Posted by Heavy Hauler 1
Hey Bear 45/70 where didya find the recurve items. I looked both Jegs and Summit and didn't see any listings. My rig has headers 2.5s into a 2 in 1 out 3" muffler. Im planning on upgrading the ignition system to 8mm wires and the 45,000 volt Super coil. Has anybody heard of problems with that set up? Any ideas on detonation problems, burnt pistons, valves etc. I bought this bohemoth used and dont know the particulars on the headers. They are the Tri Y type and are coated.
Senior User
Joined: Oct 2005
Posts: 434
Likes: 0
From: Idabel, OK
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Originally Posted by turbo2256
What muffler are you using?
The muffler is a 3" in and out straight thru unit, but I can't remember the brand. Will see if I can find the reciept somewhere.
New User
Joined: Mar 2005
Posts: 7
Likes: 0
long drive
Just moved from Cali to Toronto.... Big box on back (raised sides of truck 3ft over bed... biggest dorkiest ghetto homemade cargo shell you have seen) got about 11.5 mpg the whole trip averaging 73 mph.... Mileage was the same going over the rockies, got better on the way down, but the puter freaked out at over 10000 feet.... not enough oxygen, so it ran super lean. Reset the check engine light and mileage went back to normal. Load in the back was light, about 2000.
Senior User
Joined: Mar 2004
Posts: 274
Likes: 0
From: MI
Originally Posted by turbo2256
Hit 10.1 MPG this weekend city driving only.