Engine MPG

Reply Subscribe

Thread Tools

Search this Thread

Aug 23, 1999 | 11:16 AM

iceman

Thread Starter

New User

Joined: Aug 1999

Posts: 3

Likes: 0

Engine MPG

I have a choice between which engine I can put in my truck I was wondering what would a 78' F150 with a automatic get for gas mileage if it had 360, 390, 351m, and 400m in it? Also what is the horse power and torque rating of these four engines?Also what is the most reliable engine of the four?

Aug 23, 1999 | 05:38 PM

390fe

Fleet Mechanic

Joined: Jul 1999

Posts: 1,360

Likes: 1

From: Iowa

Engine MPG

I have a '70 F100 with a 390 C6, 3.50 gears, and a two barrel carb. My truck weighs 4100 lbs with a full tank of gas. It gets eight to 15 miles per gallon, depending on what I'm doing. Reliability? In the 80,000 miles I've owned it(for a total of 160,000 miles), I've replaced the timing gears and chain, camshaft(due to timing chain and nylon gears), two burnt exhaust valves, 56 spark plugs, three wire sets, 40 gallons of oil, and 32 oil filters. I think it's pretty reliable!

Aug 23, 1999 | 06:33 PM

Kikker

Freshman User

Joined: Aug 1999

Posts: 48

Likes: 0

Engine MPG

390fe,
I'm sure glad to see ya keep good maintance records.
What would you think would be the tallest gear
I could run with my 65, 240-6 with 3 speed?