Need info on 67 International Motor

[cowboybarber]

I have just aquired a 67 model Loadstar 1700 series truck. It has an International gas motor in it , a 304 I believe but I'm not sure. Anyway, the motor runs but not too great, so I was wondering if there was a Chevy or Ford motor that would bolt up to the existing stock transmission. The trans is in pretty good shape. Or would it be easier to rebuild the motor that is in it already.



Any help appreciated.

 

[Will24]

There is a good possibility the 1700 has a 345 in it with a holley two barrel, if it's a 345, go for the rebuild! That's a decent running little gassere

 

[cowboybarber]

It probably is a 345

The guy that I got this from had just installed what looked like a new Holley 2 barrel carb in the engine. Truck wouln't idle but I did a little adjusting and got it idleing pretty good. Still seems like it is trying to smother out, but I haven't fooled with it too much. Maybe tomorrow. Truck is in great condition for a 67 model has a good dump bed on and has all new rubber all around and I drove it 65 miles home from where I bought it. Took a while but she made it! I only gave 800 bucks for her.

 

[tarussell]

I agree with will24 , if it is a 345 than build it. They were actually very good motors and had decent power for what they were. To the best of my knowledge the bell housing will not except a Ford or Chevy bolt pattern. Those motor's were very durrable and would be worth putting some rebuild money into it. Good luck ,Thomas

 

[cowboybarber]

Thanks guys. Looks like I have a Rebuild project!



Appreciate the info.

 

[illflem]

I've owned two Loadstars with 345s, a '67 and a '74. The '74 went 200k before it's first rebuild. They're good engines but don't hope for very good fuel mileage, mine got 4-9 mpg depending on the load. I'd just give it a plug, points, cap, etc, tune-up and go from there. Biggest problem I had with the Loadstars was the door latches wearing out with no replacement parts availible.



TDR member Bill Stockard is the one who knows a lot about these trucks, PM him if you have any questions

 

[Philip]

International didn't change around to much on design of parts. You might want to look into seeing if a Power stroke might bolt up to the bell housing you have. You never know it might.

 

[Philip]

If you decide to stay with the gas motor. When you go to pull it. Do not even play games. Cut the lower radiator hose. Then remove the whole front end sheet metal with radiator installed. It will save you a vast amount of cussing and skinned up fingers trying to get the lower radiator hose and radiator out. (Take a close look at it. You will see what I mean).



On the lower radiator hose should be a small stainless band. Make sure you reinstall it. This is a wear point guard. If you do not reinstall it. The lower radiator will have a worn into it in a short time.

 

[cowboybarber]

Thanks guys! I am probably gonna start on it Thursday. After driving it home I belive the camshaft is bad due to backfiring through the carb when the engine is loaded, like going uphill. I'm gonna replace all the basic stuff first and go from there. Maybe I'll get lucky and it won't be anything major.

 

[QRTRHRS]

I had copied the IH section from an old Truck manual but sent it with my 70' IH when I sold it a few weeks ago. One thing to look at is the distributer and plug wires. I think there is an IH site you might get the diagram from. You can flip the distributer 180 degrees and wire with either number one or number eight TDC (I believe). Or something in between which naturally will make it run crappy. I can't explain it too well but on my 70' the way the throttle body, linkage and all were set up in conjunction with the governor seemed to cause problems as far as how quickly you could feed it gas. I had rebuilt it and left it same as stock so never tweaked it further. I had it about 95% which suited my needs.



I don't know if I would rebuild it before looking around for another engine. Around my neck of the woods, the engines are easy to come by.



I agree on the lower hose. Almost as bad as some of our Dodge Cummins ordeals.

 

[cowboybarber]

I have already found another 345 engine at a local junkyard that is in an old school bus. He just wants 300 bucks for it. I was kinda just wanting something to tinker with myself and maybe learn something new, but if it doesn't work, out I have a backup.

 

[Philip]

Check the timing. If someone tried to time it off of #1 cylinder. It is all messed up. It might be timed by ear. This engine you time off of #8.

 

[dseabaugh]

I have owned severi IH trucks. My first P. U> was a 1967 3/4 ton 4x4 with a 9 foot long factory bed, PS. and air. Power lock differentials. I drove that same truck 167,oo miles till 1982 when I came over a hill in the Ozarks at 55 mile per hour and hit water running a cross the highway and rolled it. your truck could have a 266, 304 (both same heads, block, crank, rods, etc; or a 345 or 392 that all share common componnents. The thing to do was to put in a 345 motero that held up well and put 392 heads on it os it would breath more. If you look at the block right over the fuel pump there is a casting that sticks out that is ground flat. that willl have the engine stamped on it. scrape it off and see what you have. I have never had one of these things time off of # 8. Always off cyl. 1. If you advance the timing too much it will be hard to crank and start and run hot.

 

[dseabaugh]

I always got my spare trans. parts from the ford guys. Ford used the same trans. so I would say your best bet for a swap would be a ford like 370 HD. You cannot kill that tough pulling motor. had several. they are much better than any IH

 

[jrobinson2]

There are two deck heights on IH V8s 266/304 lowdeck, 345/392 highdeck. My dad claims that all 392s where 4bbl and all 345s were 2bbl, I've seen maybe 50+ engines and cant prove him wrong yet (Your experience may vary). All of the truck engines (5 or 6) I have worked on have timed on #8, I've never worked on a pickup engine. In my experience they are very good truck engines.

Transmission syncro's have been a problem on all my old/high mileage IH trucks.



Jared

 

[QRTRHRS]

I had a 72' one ton 4x4 SRW with the 304 that I bought new. One tough truck but rode like a buck board.



I also had a 75' 4x4, forget the model # but it had six luggers. That did have an IH intake with a four barrel. I put a 650 Holley double pumper and headers on it. I had a muffler shop make me two short pipes with glass packs and down pipes that dumped in front of the rear axle. Noise maker that one was.



O'yes, I also had a 73' Scout with the 345 4 barrel auto. Eight to a gallon on a good day during the gas shortage. Half baked emission system, this one was a real dud.

 

[jrobinson2]

I've seen pickups and scouts with 345/4bbl just not trucks Dad and I could both be nuts to, its happened before



In the IH trucks I've run the 60s trucks got WAAAY better mileage and have more power than the 70s and up, my dads got a 345 IH in a '59 Ford F600 cabover that gets 12mpg+ empty and 8 to 10 loaded to 22000, my 78 C60 Chevy 366 is lucky to get 6 to 7 mpg same load same road. I sure would like to know what they screwed with on the newer IH trucks, I've got a '83 S1700 with a 345 that can't get out of its own way and gets horrible mileage.



Jared

 

[QRTRHRS]

That 72' 304 I had got 14 on the highway with 4. 10's, 7. 50-16's. Both the 345's did about 8 but my driving habits may have had some effect.

 

[cowboybarber]

Well I took a look at it today. It is a 345 with a 2 barrel Holley carb. Checked the plug wires and timing, both were wrong. After I got the plug wires figured out and fixed the timing she's running great. Fuel pump is spitting oil out the side so I'm gonna replace it. Also the trans has a small grind like sound in first and reverse. Gonna look at that next. As soon as it quits raining I will post some photos of my "New" White Beast". And thanks guys for all the help.

 

[Wayno]

Well I use to work at a International Harvester dealer ship back in the day. I never saw a Scout or a Pickup with a 345 with a four barrel carb. I did see a few pick ups with 392,s with Holley four barrels and with Carter Thermoquod four barrels and the ones with the carter carb. would scream and I mean scream. The worst things I saw with the V-8,s (304,345,392)where the water tubes going to from the heads to the water pump were always getting little pin holes in them and leaking and the o-ring,s that seal them off. They all were pretty tuff old motors. If I was told right back in IHC hay day that the big wigs at IHC and Chrysler were kin by marriage. If you bought a truck with a automatic in it it was a 727 Chrysler transmission. I notice back then there was quite a few Dodge and Chrysler parts on those trucks.