Here you’ll find everything that goes inside your TR3 engine block, from essential bearings and timing chains to complete Arrow Precision rotating assemblies. 

The range addresses standard cylinder block rebuilds with correct-specification pistons, rings, and bearings, and also competition builds with forged connecting rods and billet steel crankshafts. Our internal engine block components cover standard and narrow journal sizes with matching bearings, rods, and crankshafts for each. 

These are the parts we use in our Gainsborough workshop when building TR3 engines that need to last, whether for daily driving or competition use.