Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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ag1234
Arthur Gertz

(119 posts)

Registered:
03/29/2023 08:26PM

Main British Car:
Where is Roadmaster MG ? and 455 stuff
Posted by: ag1234
Date: October 06, 2024 09:02PM

I've missed hearing about it. Any Buick 455 gurus here ? Anyone tried swappig a bbc crank with main bearing spacers ? Same bore spacing ? Onward, Art.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6507 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: Where is Roadmaster MG ? and 455 stuff
Posted by: BlownMGB-V8
Date: October 07, 2024 12:51PM

Art, the RM was hit by a tree and we are negotiating with the insurance company. Depending on that outcome the remains may be sold to some enterprising individual. The car is salvageable. No glass was broken but it needs a new roof and hatch. If so B.A.D.A.S.S. will proceed in a new direction.

Aside from the tree damage the car is truly well sorted by this point, with AC, electric power steering, cruise, Mr Mike/Fiero seats and of course the freshened up 455, T5 and Jag IRS. We figure it should bring in about $10K as is.

For building the BBB you can't really do better than the BuickV8/BBB forum. With a TA block those have been built to over 700 CID IIRC. Nobody to my knowledge has ever tried to use a Chevy crank in one, but there are aftermarket stroker cranks available.

Jim


ag1234
Arthur Gertz

(119 posts)

Registered:
03/29/2023 08:26PM

Main British Car:
Re: Where is Roadmaster MG ? and 455 stuff
Posted by: ag1234
Date: October 09, 2024 07:32PM

AIR., Stock mains are 3.25", to make cast crank strong enough. Kenne Bell used to turn main bearings, black for excessive surface
speeds.
Thanks, Art.
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