The recent upgrades the factory have made to the new generation 4.0 and 4.6 litre engines gives even more scope and reliability to the unit. The extra stroke of the crankshaft to give the capacity of the new generation larger engines has been made possible by the enlarged main journal size to give support and a lesser web angle to the big end pin. This has also been upsized to cope with the extra power and provides a larger surface area for the oil power wave to spread around the journal, reducing wear and long term fatigue of the big end bearing. Along with the new oil pump system these important changes allows the V8 powerplant to go into the new millenium for us all to enjoy This does not mean to say that the older design engines are destined for the scrap heap, far from it, and as proof of this many very successful race and classic engines that we here at CJBS have built over the years are still running and winning today. V8 Thunder .
Nothing quite sounds the same.
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