For race quality chain see
2H4905EVO.
It only makes sense that if you have your engine out of the car that you replace the timing chain. The chain controls the timing of the camshaft and even a slight amount of wear or stretch can result in poor engine performance. There are several varieties of timing "chain" - single, double (2H4905) or toothed belt, check yours before ordering. For competition use see
2H4905EVO which has a link to join but is heavy duty and minimal stretch(known as non stretch type)as used by racers or anybody doing an engine rebuild for longevity. This chain has 52 links.
See also our duplex gears as
C-AJJ3323 or [linl]C-AJJ3325[/link].
Fits all A series duplex gears plus MGA/MGB