easy swap for 1976 colt

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toms76colt
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Joined: Sun Sep 30, 2018 8:32 pm

easy swap for 1976 colt

Post by toms76colt » Sun Sep 30, 2018 9:24 pm

I am looking to do the most cost effective swap. I currently have the 4g32 but having issues with parts. I found a 4g52B out of a D50 would this be a decent swap? or I for a Mazda B2600 with the 4G54B is this a better swap? I want to get my car back on the road and have it reliable.

Thank you
Thomas

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mitsuman
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Joined: Sun Feb 26, 2017 10:18 am
Location: Des Moines, Iowa, United States
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Re: easy swap for 1976 colt

Post by mitsuman » Tue Oct 02, 2018 12:29 pm

Thomas,

May I start by asking if you were a member on the old site?
If so, welcome back! If not, welcome!

The D-50 G52 engine would be a very easy swap into your Colt.
The '76 generation has a somewhat longer engine compartment than the earlier and later generations.
Because of that extra room, those fitted with the G32 have a spacer that puts the radiator rearward a bit,
something like 1.5"-2.0", so you would remove that spacer to accommodate the longer G5 series engines.
If you have the radiator from the donor truck you might try to bring it over, but I think the 1.6 radiator is adequate for normal use.

My general opinion about G5* swaps is that if you're going to accept the negatives of the larger G5 block (size and weight),
you might as well get all the displacement you can and just go 2.6.

I'm not sure how much different, if any, the B2600 variant of the Mitsu 2.6 is from those fitted to Mitsu vehicles.
I expect not much, but I've never looked at one.
In case you didn't know, Mazda used the Mitsu 2.6 for a couple years,
then came out with their own 2.6 which has nothing in common with the Mitsu 2.6.
Greg
Des Moines, Iowa, United States
http://www.mitsus.org

Active fleet:
2019 Subaru Impreza
1978 Dodge Colt coupe ("Volga")
1982 Plymouth Sapporo

* Any advice provided is primarily in the context of U.S. market vehicles.

toms76colt
Posts: 3
Joined: Sun Sep 30, 2018 8:32 pm

Re: easy swap for 1976 colt

Post by toms76colt » Tue Oct 02, 2018 11:21 pm

Thank you for the reply. I am limited on funds and would like to get the car running. I’m most likely going to go with the 2.0 for now and work some overtime to be able to buy what I really want.

Will the transmission from the D50 work? Any modifications needed to the drive line? Also are there any parts I can bring over from my 4g32 that will fit the 4g52?

Datsunrides
Posts: 181
Joined: Sat Mar 25, 2017 2:32 pm

Re: easy swap for 1976 colt

Post by Datsunrides » Thu Oct 04, 2018 9:13 pm

What parts are you having a problem finding for a g32? A g52 will likely have worse parts availability than a g32, now and into the future. I just got done rebuilding a g32 last year and had no issues finding parts to do it. However, if you are not looking to rebuild the motor, a better swap candidate might be the g63 from a 86’-90’ pickup. You can probably find a running/wrecked truck for under $500 with a little patience. Same 2L displacement but way better parts availability. If you are planning anything related to performance in the future, the g54 is the better choice.

Raptorreed
Posts: 344
Joined: Mon Feb 27, 2017 8:55 am
Location: Whidbey Island, WA

Re: easy swap for 1976 colt

Post by Raptorreed » Sat Nov 10, 2018 12:24 pm

the b2600 is a wideblock so you need a matching trans for it which the trans out of that g52 truck isn't going to work as it is for a narrowblock engine. You will need a trans from a 2.6l truck or that mazda trans will work too.
Tim
76 Colt GT Hardtop
79 Colt Wagon
88 Starquest
92 Galant VR-4
94 Montero SR

toms76colt
Posts: 3
Joined: Sun Sep 30, 2018 8:32 pm

Re: easy swap for 1976 colt

Post by toms76colt » Wed Nov 04, 2020 8:44 am

So I may have found an engine from a 1985 mighty max. Will this engine bolt into the car? Also how can Identify weather it’s the narrow block or wide block. Also will my stock 4 speed work with a narrow block. I am tight on time due to work hours. I am going to have someone do the swap so I’m trying to make sure I have enough knowledge before I have him do it.

Raptorreed
Posts: 344
Joined: Mon Feb 27, 2017 8:55 am
Location: Whidbey Island, WA

Re: easy swap for 1976 colt

Post by Raptorreed » Wed Nov 04, 2020 11:26 am

Yes your 4spd will bolt to a narrow block, because your stock engine is a narrowblock. Which engine is it from the pickup, I'm guessing it's a g54b 2.6l which would be Wideblock, so you would need the trans with it and the slip yoke off the driveshaft from the truck.

wideblock or narrowblock, they both will bolt into these cars no problem, however with a wideblock, you will need to pull the trans to do the clutch in the future as there is not enough room between the firewall and the bellhousing to slide the transmission back.

Normally with figuring out wide or narrowblock, you go off the bottom two bellhousing bolt spacing, wide is 13.25" spacing. Or there are known configurations depending on trans or vehicle for wide and narrow...however in the pickups the only narrowblocks you will come across are the early trucks with 4g52 2.0l or the g63b 2.0l truck 86-89 with a 5spd. all the 2.6l trucks are wideblock as are the 2.4l trucks.
Tim
76 Colt GT Hardtop
79 Colt Wagon
88 Starquest
92 Galant VR-4
94 Montero SR

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