Glenn Merrell's 73 Triumph Stag with Rover SD1 Engine

Glenn Merrell's 73 Triumph Stag with Rover SD1 Engine

as published in British V8 Newsletter, Volume XV Issue 3, December 2007

Owner: Glenn Merrell
BritishV8 UserID: StagByTriumph
City: Lafayette, Colorado
Model: 1973 Triumph Stag
Engine: Rover 3.5L V8

Engine: Rover SDI 3.5L V8 engine, rebuilt with Chevy HC pistons and connecting rods. Erson T020H cam with high-rev lifters. Edelbrock timing chain and gears. AC Delco 90 amp alternator.
Induction: Rover 14CUX electronic fuel injection system (circa 1993), reprogrammed. Rover "3.9L" intake manifold, plenum, throttle body, mass airflow sensor, etc.
Exhaust: block hugger headers, Jet-Hot (ceramic) coated and wrapped. Stainless steel exhaust system.
Cooling: stock radiator. 16" Permacool electric engine fan. 15" Permaflex engine fan and shroud. Undersized water pump pulley.
Transmission: 5-speed manual (Rover LT77?). 9.5" clutch.
Rear Axle: Triumph Stag 3.43:1 ratio and Phantom Grip limited slip differential.
Front Susp.: Crossmember lowering blocks, lightened springs, polyurethane bushings.
Rear Susp.: stock.
Brakes: stock discs and drums. Silicone DOT 5 fluid.
Wheels/Tires: stock 5-spoke alloy wheels. Yokohama Avid H4 195/70R14 tires.
Instruments: stock.
Body: stock, except for a TR6-style front air dam.
Interior: Blaupunct 4x50W stereo.
Performance: it'll go about 140mph... way faster than you really ought to go in a Triumph Stag!
Completed: 2003 (40K+ miles driven so far, as of Colorado Conclave meet, September 2007).
Comments: as with any conversion, many parts must be custom made. Electrical, cooling, exhaust, engine and transmission mounting, shifter location, driveline alignment, etc., all must be sorted out. These items all add up to real dollars. This was undertaken so that I could say: "Been there, done that!" I look forward to building the Triumph V8 and reinstalling it.

Rover SDI 3.5L V8 engine

Rover 14CUX electronic ignition system

master cylinders and brake booster servo

steering linkage

k&n air filter and Lucas/Hitachi mass air flow sensor

15 inch mechanical flex cooling fan

a box of lead and acid? let's put it as far forward as possible!

AC Delco 90 amp alternator

relax, it's just 16 hoses

wiper motor

remote oil filter, steering rack and anti-roll bar

MacPherson strut independent suspension

MacPherson strut front suspension

Triumph Stag rear suspension

the exhaust wraps around the differential

Triumph Stag dashboard... what is it about Triumphs and veneer?

Triumph Stag instruments

Triumph Stag seats and door panels

Yokohama Avid H4 195/70R14 tires.

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