 This engine had been described in the March edition as the 'Burt' engine.Grindlay-Peerless started producing a SSV Barr & Stroud engined 999cc V-twin in 1923. and later added a 499cc single SSV as well as the 350cc.Vard Wallace, known for his aftermarket forks for motorcycles, presented in 1947 drawings of a Single Cylinder, Air-Cooled, 250 cc SSV engine.