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1946 COE engine suggestions
#1353440 Sun Apr 05 2020 10:07 AM
Joined: Dec 2014
Posts: 154
2
29tons Offline OP
Shop Shark
Im working on another project. 46 coe I was thinking of installing a Detroit diesel 4 cylinder 471 or 453? But I really would like to put a automatic behind it. or a 5 speed over drive. Anyone have any suggestions. What year what type of trans what did this engine come in? What frame would be best? Thanks for any help

Last edited by 29tons; Sun Apr 05 2020 11:20 AM.
Re: 1946 COE engine suggestions
29tons #1353468 Sun Apr 05 2020 02:35 PM
Joined: Feb 2004
Posts: 20,194
H
Boltergeist
Detroit engines are noisy, heavy, smoky, and stinky. They also have a very narrow usable RPM band, so they need a LOT of gears. Even a 4-53 will weigh about twice as much as the original engine. You will need to install a front axle designed to hold the weight of the engine and completely re-engineer the steering system, or put the cab onto a frame designed for the engine. Either approach will cause your checkbook to need CPR. I'd suggest retrofitting the truck with a 292 Chevy 6 cylinder and a Turbo 400 transmission. You'll have more than twice the power of the original 216 engine, and other than fabricating new engine mounts, it should be a pretty simple swap. While you're swapping components, install a GM corporate 14 bolt rear end and you'll have a complete new running gear with affordable, easily obtainable parts, not a Franken-truck with a totally obsolete set of drivetrain components.

Edit: If you're really committed to using a 4 cylinder Diesel, drop the cab onto a chassis for a Nissan 4 cylinder Diesel cabover truck and use the whole frame and running gear. It's engineered to work, and you'll have a modern suspension and steering system and brakes.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: 1946 COE engine suggestions
29tons #1353633 Mon Apr 06 2020 01:21 AM
Joined: Jun 2011
Posts: 3,330
E
Shop Shark
29tons,

What size is your COE? They come all the way from 228 gasser to 6-71 Detroit with appropriate weight running gear.

What is your intended use? Picture?

Ed

Last edited by EdPruss; Mon Apr 06 2020 02:59 PM.

'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
Re: 1946 COE engine suggestions
EdPruss #1353695 Mon Apr 06 2020 01:21 PM
Joined: Dec 2014
Posts: 154
2
29tons Offline OP
Shop Shark
To use as a pickup but would like some power in case I want to tow something . Also thinking of using a van or Motorhome frame. I was wondering if I should post this on the hipo forum is there an easy way to move this ?

Re: 1946 COE engine suggestions
29tons #1353788 Mon Apr 06 2020 10:54 PM
Joined: Jun 2011
Posts: 3,330
E
Shop Shark
A 261 Chevy or GMC 302 will fit in there quit easily and give plenty of power for intended use.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
Re: 1946 COE engine suggestions
29tons #1353800 Mon Apr 06 2020 11:49 PM
Joined: Jul 2016
Posts: 32
5
Wrench Fetcher
I just finished a 48 COE with a duramax and allison transmission plenty of power I also added a hitch in the bed for my 40ft enclosed trailer.

Attached Files
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Re: 1946 COE engine suggestions
29tons #1353808 Tue Apr 07 2020 12:17 AM
Joined: Jul 2019
Posts: 243
B
Shop Shark
Go buy a silverado with a 4.8/5.3/6.0 and a frame thats broken/rotted in half. Get it for like 3-500 bucks and use the whole drivetrain. Simple, easy, effective. Every parts store has everything to fix it if god forbid it ever needed something while on the road.

Re: 1946 COE engine suggestions
29tons #1353858 Tue Apr 07 2020 12:51 PM
Joined: Jun 2011
Posts: 3,330
E
Shop Shark
I have a Dodge 4wd frame I am going to add a COE body to sometime.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
Re: 1946 COE engine suggestions
29tons #1353882 Tue Apr 07 2020 03:56 PM
Joined: Feb 2004
Posts: 20,194
H
Boltergeist
One of my neighbors has two items decorating an equipment shed on his farm- - - - -an early 1960's D-4 Cat dozer and an early 1950's Chevy cabover flatbed truck with the cylinder head off and sitting on the bed. I've been trying to buy both of them for years, but he just won't turn 'em loose! (As if I needed another project or two!)
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: 1946 COE engine suggestions
Barnfind49 #1354007 Wed Apr 08 2020 11:15 AM
Joined: Dec 2014
Posts: 154
2
29tons Offline OP
Shop Shark
I would have to measure the side to side measurements to see if it would fit down in the frame .Is a 6.0 ls more narrow than a 350 with exhaust manifolds?

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