Su Upper Bearing Copper Seal, H Type, Goes Between Top Jet Bearing And Main Body. (Because Of The Potential For A Problem With Ethanol We Now Offer A Complete Jet Bearing Kit With Ethanol Proof Seals, See Wzx1775)
Since 1996 the APT website has been a popular destination for British sports car enthusiasts. British Leyland (BMC) 'A' & 'B' Series, all Triumph Engines "We wrote the book on Tuning the A-Series Engine" Authored by well known engine expert David Vizard and original partner in APT. APT specializes in engine and engine parts, and most importantly over 30 years of running them on the road, the track, the dyno and the flowbench.