Yes, as John "H" suggested, NAPA Canada does list a Loadomatic distributor for early 1957. I know because I got caught on that one when I ordered a 57 & received a 56 or prior model. As I recall, I ordered the first one listed on John Mummert's listing of distributors. However, the subject of it possibly being a Truck distributor never came up. They insisted it was a 57 & weren't happy when I returned it... As for the 145 H.P. 1957 truck 272, that must be a mistake. The cars were rated at about 190 H.P., and net ratings weren't in effect as far as I know. (Were taxable H.P. ratings used?).. How mild could the cam be ?..

Paul

If your going by the glove box for horsepower, thats the net horse rating, gross should be 171 or 181 for 1957 pickups. I'm at school now, when I get home I can post out of the 57 owners manual I have.

1959 and 1960 f-100sAkron OH

I was thinking later on today that it must be something to do with the cam.

I have it all running good, brakes done, slave, masters, all points greased, lights working, The gas tank is peppered with pin holes though, Anybody have a good tank for a 57 F100???

Some new parking and tail light lenses and a good spray and she'll be ready.

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?

The cam would be a major difference between the car and truck, with the truck one producing less HP with a broader torque range at lower revs, A  cam change, especially an aftermarket spec, will liven it up.

Pete, one of the Aussie mob. Beechworth, Victoria60 F100 Panel Van, Y-block. 65 Galaxie Country Sedan 390

Potentially a lower compression ratio with the G heads or the engine could have just been rated at a lower rpm.  Just a guess as I don’t have any truck documentation to compare year by year.  Doubt seriously that it's related to the intake though.

Lorena, Texas (South of Waco)

I browsed through other sites with 57 trucks for sale and those also had the 3 bolt carb and early dizzy so it must have been caried over on trucks.

The head numbers are definately upside down and reading backwards compared to the heads I have in front of me. It has the high ratio rockers.

Now the question is, if 55-56 272 with the 1.78 valves and low ratio rockers was rated at 160-182hp, then how come the 57 with G heads 1.92 valves and high ratio rockers is only rated at only 145hp??? the intake is an ECW9424-A of coarse I did not write these numbers down so I am only going by memory which may not be so good. would it be the intake that is hampering the HP.

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?

I picked up a 57 272 out of a pick up and it had the G heads. I think ?? that all 57's had G heads, cars and trucks.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

John, I didn't mean to come off sounding like I know it all, I guess I should say that from all my sightings and looking for real correct trucks, thats what I've seen.

1959 and 1960 f-100sAkron OH

Mr4speed:

Thanks for setting me straight on '57 trucks.  I assumed they followed the cars' production changes.  There's that word "assume" that catches me every time.

John

John - "The Hoosier Hurricane"

The trucks carried over the 3 bolt carb. I have a friend with a 57 and his had the early style dizzy I believe as well. 1958 is when they switched over to 4 bolt carbs. Most of the 57 trucks that I've seen have G heads. I just purchased a 1957 f-600 and I believe I felt a "g" on the heads. Hope this helps. If there is any paint left of the motor it should be yellow if original.

1959 and 1960 f-100sAkron OH