Of all engine performance parts, piston assemblies usually extract the largest bite from a Ir. Stock engine builder's budget. Of course this is not always the case. Some piston manufacturers, such as ...

Unit shown in the bottom of the photograph has been removed to show operation of the V-drive which is base of V-four engine.Ring gear shown on lower shaft of top unit is driven by a pinion mounted to ...

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When you consider the crazy monkey motion of reciprocating internal combustion engines it is remarkable they work as well as they do. You have eight pistons and connecting rods doing a “do-si-do” ...