Description

The ‘Sunflash’ is a soft riding luxury runabout designed as the pinnacle of the thoroughly proven and popular Sunflash series. It ultimately served as a platform for the Greavette Montique, a luxury runabout designed by Tom Faul. Originally fitted with a 165HP inline six cylinder engine and hand built in Gravenhurst, Ontario, Canada. 



The allure of classic wooden boats lies not just in their aesthetic appeal, but also in the stories they carry across time. The 1972 Greavette Sunflash III, an 18-foot vessel crafted by Greavette Boatworks in Gravenhurst, Ontario, embodies this sentiment. With only ten models produced that year, and a mere fifty-two crafted between 1969 and 1972, it represents a rare breed of nautical history.


The heart of any vessel is its engine, and the Sunflash III is no exception. Originally equipped with a 165HP inline-six (I6) engine, many of these boats have since undergone repowering, a process of replacing the original engine with a more modern alternative. One common upgrade involves a 236HP 4.3L V6 engine. This transition not only boosts performance but also enhances the overall driving experience.


Performance metrics speak volumes about a boat's capabilities. A repowered Sunflash III can achieve a top speed of 54 mph, as measured by GPS. This figure isn't just a number; it represents the culmination of design and engineering aimed at delivering both speed and stability. The deep V hull design is crucial here, ensuring a smooth and dry ride even when slicing through choppy waters. Some owners have taken performance enhancement a step further by adding lifting strakes to the hull. These strakes reduce hydrodynamic drag, allowing the boat to plane more quickly and efficiently, thereby improving overall performance.


While the 18-foot length is a defining characteristic, precise original dimensions such as beam and draft often require deeper investigation. Original manufacturer documentation, owner records, or historical archives are invaluable resources for uncovering these details. The quest for such specifications is akin to an archaeologist piecing together fragments of the past to reveal a complete picture.


The Greavette Boat Company, based in Gravenhurst, Ontario, holds a significant place in Canadian maritime history. Founded in 1930 by Thomas Greavette, who previously honed his skills at Ditchburn Boats, the company quickly gained a reputation for quality craftsmanship. Gravenhurst itself is a town steeped in boating history, serving as the home port for the RMS Segwun, North America's oldest operating steamship. This heritage provides a fitting backdrop for the legacy of Greavette boats.


Repowering a classic boat like the Sunflash III is not merely about upgrading its mechanical components; it's about preserving a piece of history while adapting it for contemporary use. The decision to repower often involves balancing the desire for increased performance with the need to maintain the boat's original character. This is where the expertise of boat builders and restorers like Tim Butson becomes invaluable. Butson's work on classic Greavette Executives and Chris-Crafts exemplifies the dedication required to keep these vintage vessels afloat.


The enduring appeal of classic wooden boats lies in their ability to evoke a sense of nostalgia and admiration for a bygone era. The 1972 Greavette Sunflash III, with its blend of classic design and modern enhancements, stands as a testament to the enduring legacy of Greavette Boatworks and the timeless allure of wooden boats. It invites us to reflect on the craftsmanship, innovation, and passion that define the world of vintage boating.

Specifications
  • Number Of Engines 1

  • Last Modification Date 2025-09-17

  • Item Received Date 2025-08-08

  • Company Name Yacht Master Inc

  • Make String Greavette

  • Make String Exact Greavette

  • Model Year 1972

  • Sale Class Code Used

  • Model Sunflash

  • Model Exact Sunflash

  • Model No Case Alnum Only Sunflash

  • Boat Category Code Power

  • Builder Name Greavette Boats Ltd.

  • Maximum Speed Measure 46.92 kn

  • Beam Measure 7.08 ft

  • Total Engine Power Quantity 165 hp

  • Drive Type Code Stern

  • Boat Hull Material Code Wood

  • Nominal Length 18 ft

  • Length Overall 20.08 ft

  • Bcna Id 9904593

  • Yacht World Id 4390267

  • Is Available For Pls 1

  • Norm Nominal Length 5.49

  • Norm Price 15912.6

  • Boat Class Code Runabouts, Antique and Classics, Tender

  • Location Kelowna, BC, CA

Engines

#1
MakeMerCruiser
ModelNo. 21652
Drive Transmission DescriptionStern
Fuelunleaded
Engine Power165|horsepower
TypeInboard
Hours1
Boat Engine Location CodeCenter

Disclaimer

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.