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Ecotec TR6Catalogue

A full TR6 rebuild with a GM Ecotec 4 Cylinder

Carl Floyd's 1979 MGB with Buick 215 V8Catalogue

Carl Floyd · 1979 MGB

A V8 swap build using a 1963 Buick 215 engine with details on suspension modifications including lowered springs, a home-made Panhard rod, and lightweight wheel/tire setup with Miata seats.

Dan Masters' 1974 MGB-GT with Ford 302 V8Catalogue

Dan Masters · 1974 MGB-GT

A detailed V8 conversion of an MGB-GT, professionally built by Fast Cars Inc., covering the Ford 302 EFI engine swap, custom IFS/three-link suspension, extensive bodywork and flares, and a fully modernized interior with A/C and power accessories. Includes step-by-step 'How It Was Done' photos of bodyshell prep and engine fitment.

Don Watson's 1974 TR6 Rear Disc Brake ConversionCatalogue

Don Watson · 1974 Triumph TR6

Don Watson documents his hands-on quest to design a custom rear disc brake conversion for his TR6, starting from a failed Datsun 240Z kit adaptation and progressing to custom CAD-designed caliper brackets machined to fit Nissan Maxima calipers.

John Walsh's 1981 Triumph TR7 with Buick V6 ConversionCatalogue

John Walsh · 1981 Triumph TR7

John Walsh's TR7 build swaps in a Buick 231cid V6 backed by a Camaro T5 five-speed and a Ford 8.8 rear end, with Wilwood/SSBC brakes, upgraded suspension, Huffaker fiberglass body panels, and a custom gauge cluster.

Jay Foster's Triumph TR7 V6 conversionCatalogue

Jay Foster · Triumph TR7

A detailed spec sheet for a TR7 rebuilt with a 1990 Ford 3.8L SEFI V6 and EEC-IV engine control, paired with a Ford McPherson strut front subframe, T5 five-speed, and Ford brakes/axle. Jay explains why he redesigned the front suspension to fix the TR7/8's stock handling flaws.

Bruce Wood's 1969 Triumph TR6 with 406ci Chevy V8Catalogue

Bruce Wood · 1969 Triumph TR6

A heavily modified drag-oriented TR6 with a 535hp 406ci small-block Chevy, back-halved and tubbed chassis, narrowed Dana 44 rear end, and extensive body smoothing and channeling, running 10.70s in the quarter mile.

Van Wilder's 1971 Triumph TR6 with Ford Motorsports GT-40 V8 ConversionCatalogue

Van Wilder · 1971 Triumph TR6

Detailed spec write-up of a Ford 302 GT-40 V8 conversion into a TR6, built on a custom tubular frame from Fast Cars Inc., covering engine, suspension, brakes, and interior work, plus the car's history from a prior owner's abandoned project.

Don Watson's 1974 TR-6 with Ford 5.0 H.O. V8 ConversionCatalogue

Don Watson · 1974 Triumph TR-6

A detailed V8 swap specification listing a Ford 5.0 HO engine mated to an AOD automatic overdrive transmission, a Nissan 300Z differential, and a mix of Toyota and Nissan 240SX brake components, with frame reinforcement and a custom wiring harness.

Les Shockey's 1969 TR6 V8 conversionCatalogue

Les Shockey · 1969 TR6

A long-running TR6 V8 build featuring a Ford 351 Windsor bored and stroked to 408 cubic inches, custom tube-frame rear four-link suspension, a Tremec 5-speed with a 12-inch driveshaft, and a Ford nine-inch rear axle; on the road since 1989 with over 100,000 miles driven.

Ken Schmidt's 1969 TR6 with a Chevrolet 350 V8Catalogue

Ken Schmidt · 1969 Triumph TR6

A detailed spec sheet of a Sacramento owner's V8 conversion, covering the Chevy 350 engine setup, TH-2004R overdrive automatic, custom steering shaft solution, and brake/suspension upgrades, with notes on daily driving experience.

Ed Peppard's 1975 TR-6 Ford 302 V8 ConversionCatalogue

Ed Peppard · 1975 Triumph TR-6

Ed Peppard details his comprehensive V8 conversion of his long-time daily driver TR-6, covering the Ford 302 engine build, custom drivetrain and suspension work, chassis reinforcement, and an extensive custom walnut interior, completed after the car survived years of outdoor storage following a house fire.

Ed Olson's 1969 TR6 Pontiac V8 ConversionCatalogue

Ed Olson · 1969 Triumph TR6

A father-son home-built drag car project featuring a tube-frame TR6 stuffed with a turbocharged 487ci Pontiac V8, T400 transmission, and a 9-inch Ford rear end. The car was stretched and widened for wheel clearance, with a previous naturally-aspirated 455ci version running a 9.99 second quarter mile.

Ken Morris's 1972 TR-6 V8 conversionCatalogue

Ken Morris · 1972 Triumph TR-6

Ken Morris details his three-year Chevy 350 V8 swap into a TR-6, covering the Muncie 4-speed conversion, custom driveshaft, chassis reinforcements, and Miata seats, along with lingering issues like a stubborn cooling fan and clutch pedal resistance.

Dan Master's TR6 / Ford 302 V8 ConversionCatalogue

Dan Masters · Triumph TR6

A detailed technical account of converting a TR6 to a Ford 302 V8, including comparative analysis of engine choices (BOP/R, Chevy, Ford) by dimensions, weight, displacement and cost, plus custom mounting and installation details.

Ted Lathrop's Chevy 350 Powered 1976 TR6Catalogue

Ted Lathrop · 1976 Triumph TR-6

A detailed owner-written technical breakdown of a V8 conversion using a Chevy 350 with Corvette aluminum heads, a custom-built frame with four-link rear suspension, Ford 9-inch rear end, and extensive custom fabrication throughout drivetrain, suspension, brakes and interior.

Dale Knapke's 1972 TR-6 with 2.3L Ford SVO Turbo-4Catalogue

Dale Knapke · 1972 Triumph TR-6

A detailed technical account of swapping in a turbocharged, fuel-injected Ford 2.3L SVO four-cylinder with custom four-link rear suspension, Ford 9" axle, and extensive drivetrain/brake upgrades, achieving 11.21-second quarter miles after 60,000 miles of use.

Hank Kingon's 1974 TR6 V6 conversionCatalogue

Hank Kingon · 1974 Triumph TR6

Hank Kingon describes fitting a 1979 Buick 3.8 V6 with a 3-speed automatic into his California-registered, smog-legal TR6, and discusses plans for an overdrive or rear-end gear change to lower highway RPMs plus a future bigger radiator.

Greg Irvine's 1970 TR6 V6 ConversionCatalogue

Greg Irvine · 1970 Triumph TR-6

A detailed spec sheet of Greg Irvine's TR6, converted with a GM 3.4L V6 from an Impala, T5 five-speed manual, and mixed-brand disc brakes, plus a custom interior with Miata seats and modern electronics.

Ken Hiebert's 1972 TR-6 with LT1 5.7L EFI EngineCatalogue

Ken Hiebert · 1972 Triumph TR-6

A detailed spec sheet of a TR6 rebuilt around a complete 1994 Pontiac Trans Am LT1 EFI drivetrain, including a T56 six-speed, narrowed Ford rear axle, heavily modified frame with through-frame exhaust, and reused GM wiring/electronics for cruise control and diagnostics. Includes dyno numbers, fuel economy, a solved belt-noise problem, and later suspension, brake and interior upgrades.

Albert Gary's 1971 TR6 with Supercharged Ecotec LSJ EngineCatalogue

Albert Gary · 1971 Triumph TR-6

A detailed engine-swap spec sheet documenting the installation of a supercharged 2.0L GM Ecotec LSJ four-cylinder (from a Cobalt SS) into a TR6, including a custom T5 transmission adapter, Nissan R200 differential conversion, and suspension/brake upgrades, with dyno results of 219 rwhp.

Dan Furey's 1973 TR-6 with Ford 289 V8 EngineCatalogue

Dan Furey · 1973 Triumph TR-6

A spec sheet detailing a Ford 289 V8 swap into a TR-6, including a T5 five-speed, narrowed Ford 8" rear axle, partial tube frame, and roll bar, built by Dan Furey at Power Technologies.

Don Childs' 1976 Triumph TR6 Ford 5.0 V8 ConversionCatalogue

Don Childs · 1976 Triumph TR-6

Detailed spec sheet of a TR6 converted to a 1993 Ford 5.0 V8 with GT-40P heads, T5 five-speed, narrowed 8.8 TurboCoupe rear end, and a custom owner-built 3-link rear suspension, plus extensive body and interior modifications.

Mark K. Brown's 1974 TR6 Rover V8 ConversionCatalogue

Mark Brown · 1974 Triumph TR-6

A detailed spec sheet of a TR6 fitted with a Rover P5 3.5L V8, TR8-sourced LT77 five-speed and rear end, Edelbrock induction, custom exhaust, and reinforced frame, completed in 2011 and since driven several thousand miles.

Neil Brown's 1968 TR-250 with a Triumph Stag V8 EngineCatalogue

Neil Brown · 1968 Triumph TR250

A UK farmer swaps a Triumph Stag V8 into his TR250, explaining why he chose the Stag over the more common Rover V8 conversion and detailing the engine positioning, steering rack relocation, and cooling modifications needed to make it reliable.

Jay Smith's 1963 TR4 Ford 302 V8 ConversionCatalogue

Jay Smith · 1963 Triumph TR4

A low-budget V8 swap using a junkyard 1988 Ford Mustang 5.0L engine and T5 transmission, detailing the steering rack relocation and bump-steer fixes needed to fit the wider engine while keeping the body stock. The car runs 13.7s at 105mph in the quarter mile and includes a nitrous system.

Art Hart's 1963 TR4 Surrey Top with Ford 302 V8 Conversion

Art Hart · 1963 Triumph TR4

A detailed technical writeup of a rare Surrey-top TR4 fitted with a 350hp Ford 302 crate engine, T5 5-speed gearbox, and upgraded brakes/suspension, originally converted by a previous owner and refined by Hart with new interior, dash, and Miata seats.

Gary Stanfield's 1972 Triumph Stag / Rover 3.9L V8 ConversionCatalogue

Gary Stanfield · 1972 Triumph Stag

A detailed spec sheet and photo essay of a Stag rebuilt with a Rover 3.9L EFI V8, BMW E30 rear suspension and brakes, and reshaped, chrome-deleted bodywork with new fenders.

Barry Ricketts' 1973 Triumph Stag "Stagzilla"Catalogue

Barry Ricketts · 1973 Triumph Stag

A detailed feature on a heavily modified Triumph Stag with an upgraded 3.0L V8 (Edelbrock carb, performance cam, custom manifold), Toyota 5-speed gearbox, Nissan Sylvia R200 rear end with LSD, and extensive dechroming and bodywork including a Lexus color respray.

Glenn Merrell's 1973 Triumph Stag with Rover SD1 EngineCatalogue

Glenn Merrell · 1973 Triumph Stag

Glenn Merrell details his Stag's V8 engine swap using a rebuilt Rover SD1 3.5L V8 with reprogrammed 14CUX fuel injection, custom exhaust, and driveline modifications, achieving a top speed around 140mph. The write-up lists the specific parts and custom fabrication needed across engine, cooling, exhaust, transmission, and suspension systems.

David Graham's 1972 Triumph Stag with Ford 5.0L EngineCatalogue

David and Janet Graham · 1972 Triumph Stag

A detailed V8 engine swap converting a Triumph Stag to a Ford 5.0L GT40 crate engine with T5 five-speed, Corvette rear end, and Mustang II suspension components, including custom fabrication notes on cooling, exhaust, and chassis fitment.

Kingsley Dunstan's 1977 Triumph Stag LS1 V8 conversionCatalogue

Kingsley Dunstan · 1977 Triumph Stag

A detailed spec sheet of a Perth-based Stag converted to a Chevrolet LS1 5.7L EFI engine with MAFless tuning, paired to a TH700R4 automatic, BMW differential, and Nissan Skyline/Silvia brakes, plus custom cooling, exhaust, and mounts.

Simon Briggs' 1971 Triumph Stag V8 conversionCatalogue

Simon Briggs · 1971 Triumph Stag

Simon Briggs rescued a field-parked Stag and swapped in a small block Chevy V8 with a TH400 automatic, fabricating his own driveshaft and upgraded halfshafts along the way. The write-up details his engine and rear-end iterations, including a rebuild to a higher spec after his first donor engine underperformed, and notes on how well the stock Stag radiator coped with the V8.

Deryle Williams' 1968 Triumph GT6 with Ford GT40 EngineCatalogue

Deryle Williams · 1968 Triumph GT6

A GT6 fitted with a Ford GT40 V8 producing roughly 450 hp with aluminum heads, paired to a TCI Street Fighter C4 automatic transmission.

Gerald Kannenberg's 1972 Triumph GT6 with Ford Cosworth V6 EngineCatalogue

Gerald Kannenberg · 1972 Triumph GT6

An extensively modified GT6 that was widened 26cm via a spaceframe chassis and fitted with a 195hp Ford Cosworth V6, Porsche 928 suspension and brakes, and a Corvette C4 interior, built over two years and completed in 2005.

Carsten Ullerup's 1967 Triumph Spitfire Rover V8 ConversionCatalogue

Carsten Ullerup · 1967 Triumph Spitfire MKIII

Detailed V8 swap chronicle covering pulling and rebuilding a 1987 Rover SD1 3.5L V8, porting heads, fabricating custom headers, radiator, motor mounts, gear selector, and a solid-walnut instrument console, plus chassis and suspension refresh.

Barry's Triumph Spitfire V6 ConversionCatalogue

Barry · Triumph Spitfire

A detailed owner account of swapping a Ford 2.8L EuroFord V6 into a Triumph Spitfire, covering engine mount fabrication, bellhousing and clutch modifications, transmission adaptation, and multiple rear suspension/axle redesigns including a GT6+ independent rear end conversion.

Mike Reynolds's 1974 Spitfire - Chevy V6 ConversionCatalogue

Mike Reynolds · 1974 Triumph Spitfire

A drag-strip-focused Spitfire build with a bored-and-stroked 4.8L Chevy V6 (odd-fire conversion with billet crank), custom chassis, and full suspension/brake overhaul, running mid-11-second quarter miles and hitting 145mph.

Chris Oliver's 1970 GT6+ RoadsterCatalogue

Chris Oliver · 1970 Triumph GT6+

An account of a GT6+ fitted with a later Spitfire body/tub on the original GT6 chassis, built by Rob Stuart and later owned by Chris Oliver, detailing the driveline, rotoflex rear end, and body-swap modifications needed to mate the two platforms.

Miles Crouch's 1979 Triumph Spitfire with Ford 2.3 Turbo EngineCatalogue

Miles Crouch · 1979 Triumph Spitfire

A detailed engine-swap write-up covering a turbocharged, intercooled Ford 2.3 SVO engine built with custom air-ride suspension, a narrowed 9-inch Ford rear end, and a full rollcage, producing over 500hp at the wheels while still being driven thousands of miles on the street.

Max Brewster's 1979 Spitfire with Turbocharged 2.3L Ford Inline-FourCatalogue

Max Brewster · 1979 Triumph Spitfire

A detailed engine-swap build log covering a turbocharged Ford 2.3L four-cylinder installation with custom IRS using an RX7 differential, Mazda brake adaptation, and a GT6-Spitfire hybrid bonnet for engine clearance. Includes owner's technical reasoning on parts selection and fabrication techniques.

Larry Breitkreitz's 1973 Spitfire, with Toyota 4AGE 4-cylinderCatalogue

Larry Breitkreitz · 1973 Triumph Spitfire 1500

A detailed engine-swap write-up covering the fabrication needed to fit a Toyota 4AGE twin-cam engine and 5-speed gearbox into a Spitfire that a previous owner had botched with a failed Mazda rotary conversion, while keeping the finished car looking completely stock. Covers frame modifications, custom engine and transmission mounts, cooling system fabrication using parts from a Mazda RX-7, Pontiac

Graham Bingham's 1974 Triumph Spitfire V8 ConversionCatalogue

Graham Bingham · 1974 Triumph Spitfire Mk.IV

Graham Bingham details his long-running Spitfire project, which progressed from a straight-six 2000cc swap to a full Rover 3.5L V8 conversion with custom cooling, exhaust, and drivetrain fabrication. The write-up covers decades of restoration and engine swaps, including body-off rebuild work and ongoing suspension upgrades.

Mitchell Barrett's 1975 Triumph Spitfire V8 conversionCatalogue

Mitchell Barrett · 1975 Triumph Spitfire

Owner recounts a two-stage frame-off restoration of a Spitfire he bought in 1976 with a blown engine, first returning it to factory condition, then converting it to a turbocharged Oldsmobile 215 V8, and asks for advice on upgrading brakes and final drive ratio.

Rodney Wells' 1980 Triumph TR7 with Toyota Soarer 1UZ-FE V8 EngineCatalogue

Rodney Wells · 1980 Triumph TR7

An experienced TR7 V8 builder swaps in a Toyota Soarer 1UZ-FE 32-valve quad-cam V8 with its stock EFI and ignition, mated to a Toyota Supra W58 gearbox via a custom bellhousing, plus a TR8 rear end and mixed-brand brake components. The owner considers it his most successful and reliable TR7 V8 conversion after 20 years of building Rover and P76-engined versions.

Jason Hemphill's 1977 Triumph TR7 with Small Block Ford V8 EngineCatalogue

Jason Hemphill · 1977 Triumph TR7

A drag-oriented TR7 build with a stroked 349ci Ford small block, C-4 automatic, 9" rear end, rollcage, and a custom rear tube frame, running low 11-second quarter miles.

Rick Vandenberg's '72 TR6 with Chevy 350 and 700R4 transmissionCatalogue

Rick Vandenberg · 1972 Triumph TR6

A heavily engineered V8 swap featuring a 405ci stroked Chevy 350 making 560hp, custom-fabricated firewall, footboxes, and suspension mounts, and serious performance numbers including a 10.4 second quarter mile, all while being driven daily to work.

Christopher Trace's 1974.5 TR6 Ford 302 V8 conversionCatalogue

Christopher Trace · 1974.5 Triumph TR6

A detailed spec sheet of a TR6 rebuilt with a bored-out Ford 302 (310ci) V8, T5 5-speed manual, custom driveshaft, upgraded cooling/brakes/suspension, and a refreshed interior and paint job.

George Smathers' 1971 TR6 Ford 302 V8 ConversionCatalogue

George Smathers · 1971 Triumph TR6

A detailed spec sheet of a home-built Ford 302 V8 swap into a TR6, notable for positioning the engine further back to keep the oil drain plug above the frame rails and avoid a hood bulge, while retaining the stock crossmember and engine brace. Includes full drivetrain, suspension, brake, and interior modification details from a seventeen-month build completed in 2011.

Jim Prettyleaf's 1971 TR-6 with Buick 231 V6Catalogue

Jim Prettyleaf · 1971 Triumph TR-6

A detailed technical writeup of a three-times-rebuilt TR-6, now fitted with a hotted-up even-fire Buick 231 V6 making about 300hp, featuring extensive chassis stiffening, custom independent rear suspension with Corvette differential, and autocross-tuned suspension geometry. Includes owner's insights on TR-6 chassis flex and driveline durability issues from decades of hands-on development.

Ken Percival's 1972 TR6 V8 ConversionCatalogue

Ken Percival · 1972 Triumph TR6

A detailed technical writeup of transplanting a Ford 289 V8 (originally built for the owner's MGB) into a TR6, covering custom motor mounts, chassis strengthening, suspension tuning for negative camber, and a scratch-built fiberglass front clip. Includes owner's history with the car since 1981, a crash rebuild, and performance/handling notes from autocross experience.

Paul Overbeek's 1972 Triumph TR6 V8 ConversionCatalogue

Paul Overbeek · 1972 Triumph TR-6

A detailed spec sheet and photo tour of a TR6 rebuilt with a Ford 302 V8, custom tubular chassis, Fast Cars coilover suspension, Wilwood brakes, and a Miata-seat interior with carbon fiber trim.

Bill Llewellin's Ford 302 V8-Powered Triumph TR6Catalogue

Bill Llewellin · Triumph TR6

A detailed technical account of fitting a Ford 302cid V8 and T5 five-speed into a TR6, covering custom clutch slave/master cylinder sizing, steering column and frame crossmember modifications for oil pan clearance, engine mount fabrication, radiator relocation with custom plumbing, and a scratch-built aluminum tranny tunnel. The owner has driven the car reliably for over a decade with this convers

Larry Lambert's 1974 TR-6 with GM P3400 V6 ConversionCatalogue

Larry Lambert · 1974 Triumph TR-6

Larry Lambert details the extensive engine swap of his TR-6, replacing the stock inline-six with a compact, lighter Pontiac Aztec 3.4L V6, along with a comprehensive list of supporting drivetrain, suspension, brake, and interior upgrades performed by British Restorations.

Russ Grantham's 1969 TR6 with Ford SVO 2.3L Turbo EngineCatalogue

Russ Grantham · 1969 Triumph TR6

An owner's account of swapping a wrecked engine for a turbocharged Ford SVO 2.3L from a wrecked Mustang, including custom mounts, an intercooler, adjustable boost control, and driveline fabrication to fit the TR6 chassis.

Calvin Grannis' 1974 TR6 LS1 V8 conversionCatalogue

Calvin Grannis · 1974 Triumph TR6

Calvin Grannis built a subtle-looking but 400 bhp LS1/T56 powered TR6, blending stock-appearing exterior bodywork with a heavily built LS1 engine, Wilwood brakes, and Minilite-style wheels. The write-up details the engine build specs and Calvin's earlier TR250 hot-rodding history.

Derek Costello's 1974 TR6 Ford 302 V8 ConversionCatalogue

Derek Costello · 1974 Triumph TR-6

Detailed V8 swap documenting a rebuilt Ford 302 with Edelbrock heads, T5 five-speed, Nissan/Infiniti Q45 limited-slip rear end with CV axles, extensive frame rewelding, and custom firewall/transmission tunnel fabrication. Includes interior restoration details like refinished dash and rebuilt gauges.

John Butruce's 1972 TR6 with a Ford 302 V8Catalogue

John Butruce · 1972 Triumph TR-6

A San Jose owner's long-running Ford 302 V8 swap into a TR6, detailing the drivetrain (C4 automatic, narrowed Ford 9-inch rear end), suspension tweaks, and a timeline spanning from the 1983 conversion through a full 1987 rebuild and continued use into the 2000s.

Timothy Amey's 1974 TR-6 with Ford SVT 2.0L DOHC/16v EngineCatalogue

Timothy Amey · 1974 Triumph TR-6

An unusual engine swap replacing the TR6's six-cylinder with a supercharged Ford SVT Focus 2.0L DOHC inline-four, mated to a Borg-Warner T5 gearbox, with details on sourcing a rare donor engine and chassis modifications to fit it.

Jason Norman's 1967 TR4 with 427 Chevy V8Catalogue

Jason Norman · 1967 Triumph TR4

An owner's account of rescuing a rusted-out, Bondo-filled TR4 shell with a twisted frame and rebuilding it around a bored-out 427 Chevy V8, including a full frame and suspension rebuild, custom fabrication, a dry sump oiling system, and a homemade 3-stage paint job, documented through progression photos over several years.

Joseph Moticker's 1960 Triumph TR3 with Ford Mustang 302 EngineCatalogue

Joseph Moticker · 1960 Triumph TR3

A detailed V8 conversion swapping in a 1988 Ford Mustang 302, T5 five-speed, narrowed Ford 8.8 rear end, and custom chassis modifications including relocated firewall and pedals, with full build specs for suspension, brakes, and interior.

Mike Donovan's TR3 with Ford V8Catalogue

Mike Donovan · 1957 Triumph TR3

A detailed spec sheet of Mike Donovan's TR3 hot rod, swapped with a Ford 302 V8 and C-4 automatic from a Granada, including custom headers, widened rear fenders, and a Subaru rack-and-pinion steering conversion.

Mike D'Ambrogia's 1974.5 TR6 V8 conversion ("engine wars")Catalogue

Mike D'Ambrogia · 74.5 TR6

A forum project journal chronicling one owner's multi-year saga of swapping engines into his TR6, cycling through a Buick 455, a Toyota 1UZFE, and finally a GM 350 L05, including the brutal process of extracting the donor engine from a van.

Mike Hagadorn's 1976 TR7 5.0 V8 conversionCatalogue

Mike Hagadorn · 1976 Triumph TR7

A project thread documenting the swap of a Ford 302/5.0 V8 (built from 85 and 89 Mustang GT parts, Edelbrock intake, Holley 550 carb) into a TR7 that originally ran the stock 2.0 engine, targeting roughly 200 hp.