Modified A series 3.9 V8 Manta
Paul's Modified A series 3.9 V8 Manta
not been on the scene for a while it's nice when people drop us
a line to point out some new and unseen projects, especially the
modified cars. Paul Holtom's 3.9 litre Rover V8 powered A
series is no exception.
This 1972 Manta has been restored and modified over a 5 year period
and it's stock looks belie its street-sleeper attitude. Apart from
the obvious set of Engelmann mirrors and Commodore B GS/E Sport
5 stud wheels (in steel) this classic Opel looks just as its designer
Chuck Jordan originally intended back in 1970.
engine is a Rover 3.9 V8 with stage 1 heads, piper cams, Weber 4
barrel carburettor, Mallory Distributor and a lightened and balanced
flywheel and bottom end. A V8 of this spec must have approx 200BHP.
This is all kept cool with a Monza radiator and exhaust provided
by custom outlet manifolds to a stainless steel single pipe exhaust
The power is transferred via a Monza 5 speed gearbox, through a
modified Carlton propshaft,
to the rear axle; a narrowed Opel Commodore B GS/E unit, with LSD
& disc brakes, apparently the same as on the Manta 400.
The Commodore again provides parts for braking in the master cylinder
department with 3rd party drilled and vented discs and greenstuff
brake pads, for suspension with stock lower suspension arms and
the Commodore 5 stud hubs to which those classic wheels of steel
And did we mention; this classic early 70s sportscar also eats
Golf VR6s for breakfast :D
If you need any more information about this conversion please contact