Welcome to VolspecMarine and Industrial EngineersTrading from Tollesbury since 1973, Volspec has gone from strength to strength becoming one of Volvo Penta&＃39;s principle dealers.Good reasons to contact Volspec.... Experienced staff ensure correct interpretation of your requirements. International parts service. Best competitive prices. Our reputation for attention to detail is verified by our factory trained engineers. Expertise in any situation.