MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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Stonesmith
Matt Stonesmith
Boulder Colorado
(10 posts)

Registered:
05/27/2017 12:36AM

Main British Car:
1964 MGB stock

authors avatar
Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: Stonesmith
Date: January 18, 2020 05:24PM

I have enough pieces together that I am test fitting the fit of an Explorer version of the Ford 5.0 into this rubber bumper GT. I fit the engine easy enough into the hole with no bell housing attached. Adding the bell housing I had to relieve a few spots with a BFH to all for clearance but I still can't fit the lump in the hole. The T5 I am using is from the later V6 Mustang. So it has the bell housing that is 1 inch longer. It also uses a 164t flywheel, as opposed to the 157t variety of V8 Mustangs.

I am using an engine leveler to try an tilt it in but if I go in to steep, the interference is between head on the firewall and the oil pan on the steering rack (see picture). If I go in to shallow, it seems like it can't fit. Seems like about 10* down to the back is optimal for best anle without head/rack interference. I have already cut away some heater box. Next step would be to trim the firewall near the steering but that shouldn't be necessary on the rubber bumper car.

Is my problem only that I need a new bell housing or am I looking at this all wrong? Any help would be appreciated.
Engine Angle Marked up small.jpg
heater mods - small.jpg



Edited 3 time(s). Last edit at 01/18/2020 05:34PM by Stonesmith.


rficalora
Rob Ficalora
Willis, TX
(2648 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: rficalora
Date: January 18, 2020 08:07PM

Matt, I'm not following what the engine leveler has to do with the problem?

To see where the engine lands without engine bay mods ( other than the BFH on the trans tunnel), take a look at Graham Creswick's car in the photo gallery page.


Stonesmith
Matt Stonesmith
Boulder Colorado
(10 posts)

Registered:
05/27/2017 12:36AM

Main British Car:
1964 MGB stock

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: Stonesmith
Date: January 19, 2020 11:18AM

My problem is during the install not the final position. Seems I need to move the engine far enough back to so the oil pan clears the rack, then lower the engine into position. However to move the engine back I need to tilt the bell housing downward so far that the angle is such that I have the interference described above.

To get the clearance i need, I would have to cut a major section out of the heater box, which I have not seen described.

I am left thinking that this bell housing with the longer length and the larger diameter flywheel must be the culprit.

I will pick up a more standard bell housing tuesday and see if it makes a difference.


ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1095 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: ex-tyke
Date: January 19, 2020 01:52PM

Several of us have done the SBF conversion so we know that it can be made to fit without significant rework. It sounds as if the longer bellhsg may be the issue.

302 firewall clearance 1.jpg


40indianss
don foote

(61 posts)

Registered:
08/01/2013 04:35PM

Main British Car:


Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: 40indianss
Date: January 19, 2020 02:11PM

Making the crossmember removeable will save aggravation in the long term. Make certain to weld in tubular sleeves for the bolts to pass through
DSC00642.JPG
DSC00639.JPG
DSC00641.JPG


rficalora
Rob Ficalora
Willis, TX
(2648 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: rficalora
Date: January 19, 2020 02:43PM

Getting the engine and transmission in and out can also be aided by raising the back tires off the ground about 12-15".


kstevusa
kelly stevenson
Southern Middle Tennessee
(934 posts)

Registered:
10/25/2007 09:37AM

Main British Car:
2003 Jaguar XK8 Coupe 4.2L DOHC/ VVT / 6sp. AT

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: kstevusa
Date: January 19, 2020 05:45PM

once upon a time, I mounted the engine w/o the damper and installed it after. Also had to cut the front X member about 2" and reinforce it. The engine/ tranny went in w/o necessity of cutting the rear mount as earlier shown. As Graham noted, maybe the larger B/H is reason for mounting problem. I used a 93 5.0L/T5Z. My motor mounts were bolted in near the rear under #3 & #7 Plugs. This moved weight more to the rear.
Good Luck.



Stonesmith
Matt Stonesmith
Boulder Colorado
(10 posts)

Registered:
05/27/2017 12:36AM

Main British Car:
1964 MGB stock

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: Stonesmith
Date: February 01, 2020 01:48PM

Wel, I finally got a bell housing from a 93 mustang and the engine/bell fit in just fine. So the 94/95 bell housing that 1" longer is seems to long to instill past the steering rack. I guess if you had the aftermarket crossmember with the repositioned rack it would work. Too bad because I had head that the extra inch positioned the shift lever quite close to stack.

Oh well, that is a minor issue...

Now, on to making engine mounts.


ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1095 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: ex-tyke
Date: February 01, 2020 05:03PM

Quote:
Wel, I finally got a bell housing from a 93 mustang
Assume that you also got the matching T5 xsmn w/shorter input shaft .
I think you'll find that the shifter positioning is quite acceptable - on the order of 3/4" from stock.

T5 shifter location (c).jpg



Edited 2 time(s). Last edit at 02/01/2020 06:17PM by ex-tyke.


mgbreis
Ryan Reis
Beatrice, NE
(203 posts)

Registered:
07/16/2008 11:07AM

Main British Car:


Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: mgbreis
Date: February 01, 2020 05:49PM

As Graham pointed out, your v6 trans with the longer input shaft won't work with that bellhousing. You can easily swap a shorter input shaft in that trans as long as you can get one that matches the ratios of the trans you have. I swapped a shorter input in a 2001 v6 trans, it has the same 3.35 first gear as the v8 t5's.


Stonesmith
Matt Stonesmith
Boulder Colorado
(10 posts)

Registered:
05/27/2017 12:36AM

Main British Car:
1964 MGB stock

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: Stonesmith
Date: February 01, 2020 08:57PM

I wasnt able to locate the correct transmission for that bell housing yet. I may end up swapping the input shaft of the t5 I have.

The position of you shifter looks perfect, thanks for the pics.


HealeyRick
Rick Neville

(472 posts)

Registered:
12/19/2007 05:01PM

Main British Car:
1963 Austin-Healey 3000 Ford 5.0L

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: HealeyRick
Date: February 08, 2020 12:56PM

Are you going with EFI or switching to a carb? You probably know this, but you'll want to change the cam and valve springs on that motor. I'm running the Trick Flow TFS 1 cam, crane beehive springs, stock GT40P heads, Edelbrock RPM manifold with Holley 570 Street Avenger carb and a Fidanza aluminum flywheel. 345 hp at the crank.


302GT
Larry Shimp

(207 posts)

Registered:
11/17/2007 01:13PM

Main British Car:
1968 MGB GT Ford 302 crate engine

Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: 302GT
Date: February 11, 2020 07:50AM

Unfortunately, any high rise manifold including the Edlebrock RPM will probably require a hood scoop. i am using a Summit/Weiand stage 1 manifold which fits and works well. It seems a better design than the "stock replacement" Edlebrock manifold.


ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1095 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: ex-tyke
Date: February 11, 2020 01:42PM

Quote:
It seems a better design than the "stock replacement" Edlebrock manifold
The Weiand 8124 and the Edelbrock 2121 are pretty similar and both will fit without hood mods. The "stock replacement" Edelbrock, however, has slightly larger porting.


rficalora
Rob Ficalora
Willis, TX
(2648 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: Fitting a Ford 5.0 into a 1974.5 MGB GT
Posted by: rficalora
Date: February 11, 2020 08:07PM

I've had both an Edelbrock Performer 289 and an Edelbrock Performer RPM Air Gap on mine. All with no hood scoop. With the air gap, I had to use a drop base for the air cleaner and I also had to bend the top of the (manual) choke connection tab over so it didn't foul on the bottom of the air cleaner cover (I had less than 1/4" between the top of the carb and the underside of the air cleaner cover), but it worked.



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