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Building a normally aspirated (or small turbo engine) for big revs and instant response? This ring and pinion set is the answer. Run the shortest ... more info

02J 4-Cylinder

With a big turbo you want the tallest ratio that provides full boost when you need it. With a short ratio, you're almost gauranteed to skip ... more info

Purchasing a Quaife 02M differential? You're going to need some OEM bearings because they're not included. Grab these at the same time ... more info

Our new 038 236mm diesel block conversion allows direct fitment of a modern Mk4 engine to an earlier Mk1, 2 or 3. Add an early 16-valve head (for use ... more info

Our new 038 236mm diesel block conversion allows direct fitment of a modern Mk4 engine to an earlier Mk1, 2 or 3. Add an 8-valve head from either ... more info

Ready, willing, and able to consistently dominate at the track, this is how championships are won. These blocks are align bored,  ... more info

Our new 06A/B 220mm conversion allows direct fitment of a modern Mk4 engine to an earlier Mk1, 2 or 3. Add an early 16-valve head for great breathing ... more info

Our new 06A/B 220mm conversion allows direct fitment of a modern Mk4 engine to an earlier Mk1, 2 or 3. Add an 8-valve head from either early or later ... more info

Ready, willing, and able to consistently dominate at the track, this is how championships are won. These blocks are align bored,  ... more info