Ford has offered their ~5 litre V8 in a number of different iterations, which even on the basic pushrod typesbill shoe wrote: ↑Fri May 05, 2017 7:58 pmClassic Ford 302 small-block V-8's had external balancers on each end of the crank. This was lighter and cheaper than fully counterweighting and balancing the crank inside the engine. Of course when you build a performance 302, you start by throwing out the stock crank and replacing it with an internally counterweighted and balanced crank.J.A.W. wrote: ↑Thu May 04, 2017 4:17 amHere is an external balance method of quelling the 'rocking couple' effects of a 120' triple crankshaft..
www.nissan-global.com/EN/TECHNOLOGY/OVE ... r12de.html
Motorcycles usually use complex & power-sapping internal balance shafts, albeit neatly hidden internally..
..but the Nissan system ought to be functional for aircraft, & snow & marine craft - which have enclosed engine units..
involved alternative firing orders, now of course they do a 'flat plane' crank in the OHC V8.
This article: www.enginelabs.com/engine-tech/cam-valv ... ur-engine/
looks at the matter..
( & while mainly V8 oriented, also appears to dismiss the 1-5-4-2-6-3 suggestion for a 90`V6, recently mooted per F1)