1971 Porsche 914/6
- Engine
- 2.2L flat-six with Mahle pistons and barrels, E cams, rebuilt Weber carburetors
- Colour
- Willow Green

A 1971 Porsche 914/6 finished in the exceptionally scarce Willow Green colour, one of only two U.S.-delivery examples recorded in this hue. Sold new in Oklahoma City, it spent much of its life with Rennsport Werkstatt founder Howard DeHaven, who carried out an extensive mechanical build-up over twelve years beginning in 1993, expanding the engine to 2.2 litres and upgrading numerous components. A subsequent cosmetic restoration included a bare-metal repaint in the original colour. The car retains its original interior and is accompanied by documentation spanning from new.
Ownership
- —Auction saleSold US$145,600
- 1971-10-01 →Private saleJerry Robertspartial documentation
First retail owner, purchased through Eckhard Porsche dealership in Oklahoma City; Roberts was based in Tulsa and had the car serviced at Rennsport Werkstatt.
- → 2009Acquisition unknownHoward DeHavenpartial documentation
Founder of Rennsport Werkstatt; held the car across multiple buy-and-resell cycles spanning roughly three decades. Initiated a thorough mechanical rebuild in 1993, expanding displacement and upgrading suspension and drivetrain, with the car kept in dry storage throughout the twelve-year project.
- 2009 →Private saleIntermediate enthusiast ownerpartial documentation
Acquired directly from DeHaven in 2009; subsequently sold to the consignor.
- Date unknownPrivate saleCurrent consignorpartial documentation
Commissioned a full bare-metal repaint in original factory color using single-stage Glasurit paint, refreshed instruments, and replaced various exterior trim pieces with new-old-stock parts while retaining the original interior.
Competition
No competition history extracted from the catalogue.
Maintenance & restoration
- 1993Engine rebuildRennsport Werkstatt
Engine displacement increased to 2.2 litres using new Mahle pistons and cylinders, revised camshafts, and rebuilt Weber carburettors; work was part of a broader multi-year mechanical overhaul.
Car had accumulated approximately 117,000 miles at the start of this project.
- 1993MechanicalRennsport Werkstatt
Suspension and braking system extensively upgraded: new Koni dampers, replacement suspension bushings, 911 S alloy cross-member, 911 S front brake calipers, and uprated rear calipers fitted.
- 1993MechanicalRennsport Werkstatt
Drivetrain overhauled and gearbox converted to side-shift linkage; wider wheels refinished externally and new tyres fitted.
Wheel refinishing carried out by Harvey Weidman. The entire mechanical programme spanned twelve years, with the car held in dry storage and not driven throughout.
- —Restoration
Full cosmetic restoration commissioned by the consignor: bare-metal repaint in original Willow Green using single-stage Glasurit paint, original interior reinstated, new Sigla windshield fitted, and numerous exterior trim pieces replaced with NOS components.
Underside was found to be in sound, dry condition requiring no significant structural work.
- —MaintenanceNorth Hollywood Speedometer
Instrument cluster refreshed and odometer reading confirmed at approximately 119,300 miles.
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