MG Sports Cars

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

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glassman
Connal Berry
Dayton, Nevada
(2 posts)

Registered:
02/18/2009 08:09PM

Main British Car:
1970 MGB GT

MGB engine swap
Posted by: glassman
Date: February 26, 2010 06:59PM

Has anyone considered the installation of the Jag 6 cyl in a " B "? I just read an article where a 3.8 was very professionally and cleanly installed into a mid 60's Sprite.The car looks great and drives well with only a 3lb increase in front weight bias.It uses an XKE trans and a Toyota PU rearend, shortened of course. The magazine is Exotic and Sports Cars published by Hemmings. Just thinking of a long term retirement project.


Moderator
Curtis Jacobson
Portland Oregon
(4577 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: MGB engine swap
Posted by: Moderator
Date: February 26, 2010 08:39PM

Thanks for posting.

I believe the car you're talking about is featured here:
Aaron Couper's Jaguar-Powered 1961 Austin Healey Sprite (64 photos)

"looks great"... Certainly!

"drives well with only a 3lb increase in front weight bias"... Yeah, right!

It's a low polar moment car with tiny tires and a VERY heavy engine.

Someone might like the way it drives, but handling expectations vary widely. It won't corner like this Spridget!

If you're were going to put that much time and money into a Sprite, and you wanted to use a vintage British engine, why not consider a true thoroughbred racing engine... like perhaps a Coventry Climax FWE? Even for an MGB, the Jag engine is over-the-top. That's what I like in a show car... but not for carving canyons or getting groceries.

A Jag 12 has, of course, been installed in an MGB. Photos here.


castlesid
Kevin Jackson
Sidcup UK
(361 posts)

Registered:
11/18/2007 10:38AM

Main British Car:
1975 MGB GT Rover V8 4.35L

Re: MGB engine swap
Posted by: castlesid
Date: February 26, 2010 09:27PM

An extra 3lbs over the front wheels!!! more like 300 but with the set back I suppose you might be able to halve that figure.

Not an ideal swap for a B although you could probably drop one into a C without too many issues but it would still be front heavy.

Kevin


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