MG Sports Cars

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

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GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


My latest project, MGB
Posted by: GJSZ51
Date: January 13, 2020 09:17PM

The first car I ever held title to was a 1963 MGB. I loved that car, I traded that car for a 1969 corvette convertible. Ended my love affair with MGB until last Saturday. I picked up this 77 exactly as the picture shows.
Not a speck of rust anywhere. Missing a few parts. Nothing else. A blank canvas...

I am here for advice and some ideas. Even direction. All are welcome to come watch, play, advise and criticize. I can take it. I'm a big boy! I have done this kind of thing before, doh

Visit my facebook page titled SAR

B1.jpg
B3.jpg
B4.jpg
B5.jpg


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: My latest project, MGB
Posted by: ex-tyke
Date: January 13, 2020 10:20PM

Nice foundation for a swap. What have you got in mind for a powertrain?


GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


Re: My latest project, MGB
Posted by: GJSZ51
Date: January 13, 2020 10:22PM

I am thinking Rover V8. One of the reasons I have joined this site is to explore power and suspension options.


40indianss
don foote

(66 posts)

Registered:
08/01/2013 04:35PM

Main British Car:


Re: My latest project, MGB
Posted by: 40indianss
Date: January 13, 2020 11:05PM

If I had it to do again I would go small block ford but I got an incredibly good deal on a 4.6 rover built the way I wanted from a friend


spridget
bill green
Maine
(60 posts)

Registered:
03/22/2008 01:29PM

Main British Car:
3 1980 TR8, 1 TR7 2 Bugeye Sprite 1 MG midget TR8 3.5 and 5.0, Sprite 1098 and ?

Re: My latest project, MGB
Posted by: spridget
Date: January 14, 2020 06:58AM

Wow, what a great rust free start. I am envious.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5885 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: My latest project, MGB
Posted by: BlownMGB-V8
Date: January 14, 2020 08:42AM

Consider the Buick 300 instead of the Rover.

Jim


GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


Re: My latest project, MGB
Posted by: GJSZ51
Date: January 14, 2020 09:49AM

Jim, I have considered the Buick supercharged V6. Is that the engine you refer too? Or, the old 64-66 aluminum block?



Edited 1 time(s). Last edit at 01/14/2020 12:45PM by GJSZ51.



mgb260
Jim Nichols
Sequim,WA
(2020 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: My latest project, MGB
Posted by: mgb260
Date: January 14, 2020 05:53PM

Gary, 64-67 300 V8 has iron block. 64 only, has aluminum heads and intake.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5885 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: My latest project, MGB
Posted by: BlownMGB-V8
Date: January 14, 2020 06:36PM

I'd take the 300 for an mgb anytime. In fact I'm currently building two of them with 350/340 cranks, TA heads, NASCAR rods and cerakote block paint. Deck is 9/16" taller than Rover, iron block is stronger, more durable.

Jim


Jim Stabe
Jim Stabe
San Diego, Ca
(753 posts)

Registered:
02/28/2009 10:01AM

Main British Car:
1966 MGB Roadster 350 LT1 Chevy

authors avatar
Re: My latest project, MGB
Posted by: Jim Stabe
Date: January 14, 2020 08:53PM

What displacement do you get with the crank swap? What kind of streetable power can you get from the combo?


mgb260
Jim Nichols
Sequim,WA
(2020 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: My latest project, MGB
Posted by: mgb260
Date: January 15, 2020 07:46AM

Jim, 340 with 3.75 bore, 350 with 3.8 bore. With the T/A heads and good cam should be easy to get 350-400HP. There was a twin turbo 350 that made over 1000Hp.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5885 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: My latest project, MGB
Posted by: BlownMGB-V8
Date: January 15, 2020 07:46PM

Roller cams and rockers are available.

Jim


GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


Re: My latest project, MGB
Posted by: GJSZ51
Date: January 19, 2020 11:07PM

I believe I am going to use the GM LFX V6.
Screenshot_20200119-225137_Chrome.jpg


RDMG
Dave R
Northern Virginia
(129 posts)

Registered:
04/07/2016 08:29PM

Main British Car:
1979 MGB 4.6L Rover V8

Re: My latest project, MGB
Posted by: RDMG
Date: January 20, 2020 09:34PM

Iím swimming in 1000 1979 MGB pieces in my garage, deeply frustrated by the costs involved in rebuilding a Rover V8. Hereís some details:

[forum.britishv8.org]

If youíre thinking about a Rover V8 and are at all cost-sensitive, you should wait until the perfect rover engine turns upó known history, low mileage, no overheating, no slipped liner, no cracks. I think thereís one like that somewhere on earth, but Iím not certain. I bought two junkyard 4.0/4.6 engines with enough good parts for one, but am still many thousands into machine shop costs. Making a performance RV8 doesnít make much sense, but then again, neither does owning an LBC, or a boat, or a horse, etc.

Your v6 idea may be a great one. Iíll be watching this thread enviously.

Dave


GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


Re: My latest project, MGB
Posted by: GJSZ51
Date: January 20, 2020 10:34PM

Dave

My preliminary measurements are quite positive. One of the advantages to the newer 3.6 V6 is that exhaust manifolds are an integral part of the heads. Add that is a 60į engine, making it even more attractive. 300+ hp is all I want in this lightweight! I was fortunate enough to get an excellent buy with all accessories and ecm & harness. 35K miles. I will have to build mounts and, God knows what else but, I love a challenge. Great to start with a solid car! I may even stick with the 6 speed. Rear differential and front and rear suspension are still in planning stage. I am sure there will be a combination of tubbing and flairs

😎

GJS



MGBV8
Carl Floyd
Kingsport, TN
(3850 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: My latest project, MGB
Posted by: MGBV8
Date: January 24, 2020 10:49AM

Glad you love a challenge, cause you will be blazing a new trail with that engine in a B. IMO, the exhaust may well be the easiest part of the swap.

Looking forward to it!


GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


Re: My latest project, MGB
Posted by: GJSZ51
Date: January 24, 2020 08:37PM

I do enjoy the challenge. I have several projects ahead of the B but, I am reading up on recommended frame strengthening and such. I have picked up a donor car. The advantage, of course, is getting engine, transmission, computers, harnesses, gauges, etc. With any luck , I can sell remaining parts to pay for the donor parts I will use.
Screenshot_20200124-172245_Facebook.jpg


Jim Stabe
Jim Stabe
San Diego, Ca
(753 posts)

Registered:
02/28/2009 10:01AM

Main British Car:
1966 MGB Roadster 350 LT1 Chevy

authors avatar
Re: My latest project, MGB
Posted by: Jim Stabe
Date: January 25, 2020 01:22AM

I wanted a Dana 44 rear end from a C4 Corvette to replace the Dana 36 I had in my car. The rear ends by themselves were going for $1200 but I found a C4 minus engine and trans advertised for $1000. I bought it for $800 and parted out the rest of the car for $1300. Got the rear end and put $500 in my pocket. The deals are out there if you get creative.


GJSZ51
Gary Scalf

(12 posts)

Registered:
01/13/2020 09:41AM

Main British Car:


Re: My latest project, MGB
Posted by: GJSZ51
Date: January 27, 2020 09:48AM

Might be cool to try a D36 or 44 under a B

I have a couple C4 parts cars


Jim Stabe
Jim Stabe
San Diego, Ca
(753 posts)

Registered:
02/28/2009 10:01AM

Main British Car:
1966 MGB Roadster 350 LT1 Chevy

authors avatar
Re: My latest project, MGB
Posted by: Jim Stabe
Date: January 27, 2020 04:04PM

Full disclosure, my car has been widened 11".
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