General Discussion     Tech Questions     Parts & Services     Suggestions/Ideas     Help & Website Instructions     Blogs    

Truck & Transportation History

Home Search Tags


small cam to big cam, what interchanges?

Posted By Nebraska Diesel Dude Tuesday, December 07, 2021 5:30 PM
Add to Favorites1
Author Message
Nebraska Diesel Dude
 Posted Tuesday, December 07, 2021 5:30 PM
.

. - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation)

Group: Forum User
Last Active: Tuesday, December 28, 2021 3:31 PM
Posts: 5, Visits: 51
192
Hello, greetings from Nebraska. I have a small cam Cummins from a parts truck [1975 4070B], missing alot of pieces [heaads, turbo etc]. It is a 350 from 1975, CPL 160. The engine in my cabover international [the one im working on] is a 290 big cam from 1979. CPL 353. Now I am at the point that the parts truck is basically down to the frame rails and the engine short block. I called several places { even the one in western PA} but could not get many definitive answers. Trying to figure out what will interchange. Specifically the front timing cover and the gears under the covers. Also would like to know if any of the clutch/flywheel parts are the same. How about the belhousing? I would hate to junk any good usable parts especially if I could use them. What external pieces I have removed so far are; fuel pump, air compressor {nice bendix tu flo 501}, power steering pump and oil pump, the water pump and thermostat housing,and the starter. A bendix fan clutch, the alternator. Oh, also the oil cooler. It did not have the heads, turbo manifolds, or the water manifolds [the ones on the heads. Also missing was the oil Pan and the after cooler. Other various stuff is either missing or removed.I was just going to junk the block but thought I might see if anyone would need it. The block looks really good as did most of the components. It was a one owner truck [farmer]. Anyway thanks to all out there in advance.
Newto
 Posted Saturday, December 11, 2021 10:02 AM
.

. - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation)

Group: Forum User
Last Active: Yesterday @ 10:15 AM
Posts: 133, Visits: 2,574
Pretty much everything except the block, camshaft, camfollowers, water pump, oil pump and oil cooler are interchangeable between your small cam and your big cam 2.

All the jewellery (timing covers, gears, air comp,flywheels and housings etc will all interchange.

Cheers,
Newto
Geoff Weeks
 Posted Saturday, December 18, 2021 11:11 AM
ATHS Member

ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)

Group: Forum User
Last Active: 57 minutes ago
Posts: 3,759, Visits: 17,077
The Bellhousing will not directly interchange, one bolt hole is in the wrong place, but it can be made to fit in a pinch.
Newto
 Posted Sunday, December 19, 2021 2:14 PM
.

. - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation). - (30,319 reputation)

Group: Forum User
Last Active: Yesterday @ 10:15 AM
Posts: 133, Visits: 2,574
Yeah....I forgot about that 1 bolt hole thats slightly off centre because of the larger camshaft.....enlarging it slightly cures the problem....thanks Geoff.

Newto
Sunday, December 19, 2021 10:18 PM by Newto
Nebraska Diesel Dude
 Posted Monday, December 20, 2021 7:26 AM
.

. - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation)

Group: Forum User
Last Active: Tuesday, December 28, 2021 3:31 PM
Posts: 5, Visits: 51
192
Thanks for the replies guys. I took the block to the scrap yard but stripped all I could off of it. The only thing I left was the gear on the camshaft and crank. Still kicking myself for not saving those. Wish I could of saved the whole thing but I dont have the room. Guess I could go back buy it from the yard. By the way, the clutch had the dual disc setup, which I thought was a newer set up. {1975 truck}. Anyway, the flywheel and clutch discs are like in new condition {almost}. I think I got a good deal. Paid 850.00 for the parts truck. Got some really nice windshields, a 12513 trans, a tu-flo 501 compressor, cabmate air ride, the front axle was in mint condition {spindles, drums and even the shoes and bearings}. Project is going slow. Will try to post some pictures. I married a '96 freightliner rear frame section to the original front frame stub.
Geoff Weeks
 Posted Monday, December 20, 2021 10:27 AM
ATHS Member

ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)

Group: Forum User
Last Active: 57 minutes ago
Posts: 3,759, Visits: 17,077
I don't know when the 14" double disk came into use, I do know that the same CPL I took apart had one.
When in NE are you? I am 50 miles east of Omaha in western Iowa.
Geoff Weeks
 Posted Monday, December 20, 2021 10:27 AM
ATHS Member

ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)

Group: Forum User
Last Active: 57 minutes ago
Posts: 3,759, Visits: 17,077
delete double post
Monday, December 20, 2021 10:29 AM by Geoff Weeks
Nebraska Diesel Dude
 Posted Wednesday, December 22, 2021 4:07 PM
.

. - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation)

Group: Forum User
Last Active: Tuesday, December 28, 2021 3:31 PM
Posts: 5, Visits: 51
192
I'm out here in Hastings, NE. It is south of Grand Island about 25 miles. I go through Iowa a lot. {work}.
Not too far from you. I'd guess about 200 miles give or take. Got more questions guess I'll post some more.
Like I said, I cant believe how good some of these parts look. Wish I had more space. Thanks guys.
Geoff Weeks
 Posted Thursday, December 23, 2021 11:15 AM
ATHS Member

ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)ATHS Member - (533,414 reputation)

Group: Forum User
Last Active: 57 minutes ago
Posts: 3,759, Visits: 17,077
I've got two Big cam cores and a bunch of special tools for working on them, PM me if any of it is of interest.
Not too far from you. I've been thru many times over the years.
Thursday, December 23, 2021 11:16 AM by Geoff Weeks
Nebraska Diesel Dude
 Posted Sunday, December 26, 2021 8:15 PM
.

. - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation). - (192 reputation)

Group: Forum User
Last Active: Tuesday, December 28, 2021 3:31 PM
Posts: 5, Visits: 51
192
10-4, will do. Actually, I'm looking for a few things water cooler for the intake would be nice and a set of jake's would be nice. I dont know what jakes would work. I'd like to step it up to 350 horse. It's a 290 now {CPL 353}. I would like to use this truck for work someday. Just staying in the "flat" states {Nebraska, Kansas, South Dakota. maybe even as far as Texas}. Dont need a ton of horsepower, maybe 350 would be good. Thanks for reply.

Similar Topics

Expand / Collapse

Reading This Topic

Expand / Collapse

Back To Top