Said by Ken to be 'easily the best example in existence' and extensively developed by him personally over a number of years, this Costello boasts every upgrade ever produced - and then some!

General specification:

- Costello alloy wishbone front suspension

- Negative camber lower front wishbones

- Costello castor correction wedges

- Costello uprated front anti roll bar

- Pro-Tech alloy adjustable front and rear dampers


- Costello 5-link, coil sprung rear suspension

- Wildcat 5.0 litre engine (Separate specification below)

- High capacity alloy radiator & twin Pacet Profans

- Costello alloy sump / remote oil filter & cooler

- Costello stainless long range injection fuel tank


- Bosch high capacity fuel pump

- Costello 4/2/1 exhaust manifolds

- Costello Stainless steel dual exhaust system

- Helix heavy duty clutch

- JE bell housing with concentric hydraulic clutch actuation


- C T S heavy duty T5 five-speed gearbox

- Heavy duty propellor shaft

- Quaife limited slip differential

- MES/DEA electric brake vacuum pump

- Brembo 305mm vented front discs


- Frontline Costello 4-piston alloy front calipers

- Costello front valance with integral brake ducts

- Costello rear disc brake conversion

- Revolution 6J x 15 centre-lock alloy wheels

- Bridgestone RE720 195/60 - 215/60 VR 15 tyres


Wildcat 5.0 litre engine - Costello specification:

Rover V8 Coscast cross-bolted block, fitted with top hat cylinder liners. Reciprocating parts fully balanced, with Wildcat steel con rods and Keith Black hyper-eutectic pistons. Wildcat low-profile injection manifold with eight throttle bodies, Wildcat stage one, 'high port' cylinder heads with stainless steel valves and tungsten valve seats. Wildcat roller rockers, Crane 248 camshaft, hollow chrome molybdenum pushrods, Wildcat solid lifters, Cloyes duplex roller timing chain, lightened steel flywheel and a Helix heavy duty clutch. Emerald K3 ECU, distributor-less ignition, Poly-V ancillary drives, heavy duty alternator and a Nippon Denso high-torque starter motor. Dynamometer tested at an effortless 345bhp and 400Nm torque @ 5750 rpm.

Ken has long been an admirer of the work of Ian Richardson of Wildcat Engineering, 'the best in the business', he says, but major engine re-working aside, our man has never really given up on trying to maximise the potential of the classic MGB. The 'bolt on' front suspension and braking set up on Roger's car exemplifies this, as the picture below shows.

An impressive sight: Roger Cook's 5000cc Wildcat engine. Note the eight-port fuel injection and the non-Rover, Wildcat-designed cylinder heads.    Front suspension & brakes (see image below).



The Costello Story

Costello Gatherings

The Cars

Technical Section

TechTalk with Ken


Lost Costellos




This ever-expanding section has now been subdivided for ease of navigation. Click on the sub-section you require. Within each of these you will currently find the following topics, listed more or less in chronological order. Some of the subjects arose as a result of your questions to the man himself and can be found in the subsequent Tech Talk With Ken section:

The Ultimate Costello V8

Technical Section

Brembo discs and four-piston alloy calipers, Costello cast alloy suspension, upright and upper wishbone, negative camber lower wishbones, Costello anti-roll bar with special mounts, rose-jointed drop links and alloy Pro-Tech adjustable tubular dampers, the latter mounted outboard of lowered, uprated (550 lbs/ft) coil springs.

The car has also been fitted with:

- Bi-xenon HID headlamps

- Electric windows

- Full leather upholstery

- Golde mohair sunroof

- Stainless mesh Costello Mk III radiator grille

- Thatcham immobiliser

- High security locks

- Uprated, 3-speed heater

- Heated windscreen

Text Box: Evolution of the Costello V8
Text Box: MGB - A Brief History
Text Box: Original Modifications
Text Box: Parts & Upgrades
Text Box: Gearboxes
Text Box: Ultimate Costello V8