I`m toying with the Idea of building a 410 torque motor,,,,

[GJCAT427]

I got a 56 C600 I`m building and its gonna be a tow unit for my car hauler. I got a .030 block and all the parts to build it. I`m toying with the Idea of using a 427 marine cam to run in it. I know they weren` high rever`s but in my case I think it should work. The truck has a 2 speed rear and will have a Clark 5 speed OD tranny. Any guess as to how it might respond? And yes it does have the right rotation cam.

[machoneman]

Maybe a more modern RV/Tow vehicle cam would be a better choice?

[My427stang]

It would be very cool if you had exact compression and measured the valve events at modern .006 and .050.  Then we could play around with cam performance and where to index it. 

My hunch is, it would run great with the right compression, valves and springs will last a long time, but may give up a little horsepower compared with a .500+ lift cam, and a little torque with the wide LSA I assume it has

[WerbyFord]

Near as I can figure it the most common 427 Marine 427/330hp and 427/330hp cams were doggone close or the same as the 390/330pi cam (which is also close to the early solid 352/300 cam of early 1958:
206-206-113 at .050

AFAIK the 427/400hp H&M I tried to clone for my dad ran the "406" cam at
228-228-114

and again AFAIK the hotter 427/500hp H&M ran the HiRiser "B" cam at
244-244-106

I remember our 390/330pi as being very mild, milder even than a 428cj. If that's what you want -

[scott foxwell]

This would work real well...
221 / 230 @ .05
.340 / .320 lobe lift
.588 / .554
109 LSA
Opn-cls 4.5 36.5 / 47 3
277 / 286 @ .006
ICL 108
It's a custom hyd roller I had ground for my "stock" 390, but decided to get a little more aggressive. New in box.
 

[chris401]

I got a 56 C600 I`m building and its gonna be a tow unit for my car hauler. I got a .030 block and all the parts to build it. I`m toying with the Idea of using a 427 marine cam to run in it. I know they weren` high rever`s but in my case I think it should work. The truck has a 2 speed rear and will have a Clark 5 speed OD tranny. Any guess as to how it might respond? And yes it does have the right rotation cam.

Personally I would go with a cam that gives a idle to 4500 power. A heavy truck will pull better and make the most out of it's fuel intake with a conservative cam. Run some numbers by Isky. From what I understand they are heavy into Ford's and have been in business a long time.

[FElony]

I think you're between a rock and a hard place using a 410. Factory compression rating is 10.5:1, too high to run a "torque" cam in a heavy vehicle on pump gas, IMO. Modern 428 replacement pistons are rated at 9.5:1, which might work with something like a 268H on pump premium, if you can find that piston in a smaller bore size (custom).

My thinking is, with a 2-speed rear, your gear ratios really may not require a stump-puller engine for your particular towing needs. I would consider a 390 at 8.5 to 9:1 and let the gears move the truck. Or use the 410 pistons with a 390 crank at 8:1 and put a small turbo on it.

[GJCAT427]

The truck is equipped with a 390 at the moment, but its stuck. Hasn`t been run in probably 25yrs. It has a Clark 5 spd OD tranny in it with the 2 spd rear. The original owners son told me they used to haul a dirt track car with it, and could cruse at 60-70 on the innerstate. I would like a little more grunt for it as the 390 was a 2bbl merc of unknown origin. I`d like to be able to pull the hills in Pa around Beaver Springs with out a lot of drama and there are some hills that make the diesel work getting there from western NY.

[NIsaacs]

There is no FE that will run with a diesel, especially for me in the Rocky Mountain States. I would put a 534 in there if you want to stay gas power.

Nick

[My427stang]

I think those advertised numbers for a 410 are a bit optimistic, measured, I'd expect them to come out to 9.75-10:1 depending on head gasket, deck height and head combo

It really depends on the cam, of 270 at .006 or greater and on 113 or later, no issues at 10:1.  Really need to know exactly what the cam is to determine.  If indexed earlier, or less duration at .006, it'll likely rattle

Unfortunately, there are no good websites or documentation I can find for modern measurement of old cams. 

[FirstEliminator]

    410 cubes isn't far off of a FT391. That 391 will have a steel crank, bushed rods and be heavy duty enough for constant higher rpm to get a heavy truck to 55 mph. It might not be a bad idea to repair and spruce up the 391?

   You might want to go 482 to get the max useable torque. On a heavy towing rig too much compression will be an issue. Not sure if you could get the compression low enough with a 482. It might require more dish than the piston has to offer.

    A 534 will consume diesel at about 6mpgs by the 18 wheeled tanker it needs for gasolilne capacity. 

   Wanna be different? Go with an MEL 462, it should have the same bell pattern.
   
    Maybe consider a 7.3 diesel swap?

    Cummins swap?

[GJCAT427]

I have access to a 7.3 turbo diesel (non powerstroke) which will fit. The bell housing is the catch. It needs to be a 6.9 4speed bell which will require some mods to work with the Clark 5 spd. These things are like hens teeth. The turbo diesel is in a 1 ton 4x4 and does have a 5 speed but it would need to be changed to run a drive shaft e brake.

[wayne]

Fel-pro has a cyl head spacer shim part number 8554 sp  that will bring the compression down on your 410  rock-auto has them for  9.71 each.                                                                                                                                                                                         
     

[jwrmach1]

I have a 6.9 4 speed bellhousing if you are interested.
JWR

[NIsaacs]

I have access to a 7.3 turbo diesel (non powerstroke) which will fit. The bell housing is the catch. It needs to be a 6.9 4speed bell which will require some mods to work with the Clark 5 spd. These things are like hens teeth. The turbo diesel is in a 1 ton 4x4 and does have a 5 speed but it would need to be changed to run a drive shaft e brake.

Now yer talkin! Keep in mind the diesel's, even the 7.3, run at a lower rpm, so rear gears might be an issue. The early F-Super Duty (before F-450) used the ZF5spd with the drive shaft brake.


Nick