Antz - Sry about misspelling your name I prefer saying Antz going forward & hope its OK with you. I find all your posts to be very much valuable & way too much educative & I'm glad to learn Tks for that.

This is a news to me. Can you explain how? My understanding goes that, with a OHV, one would only need one or two timing chains, however, that's the same case with push rod's too isn't it?

More than low revving, I also have a feeling that push rods have more torquer engine. Any idea as why?

Yes, Nithin's points were excellent & great enough to understand.

The thing is tat the pushrod engine don't use a timing chain (to my knowledge).This is because the camshaft is placed below the cylinder, inside the crankcase,making it closer to the crank shaft.This enables the direct coupling of the crank and cam shafts using gears.(It's like mating the sprokets on the crank and cam shafts directly eliminating the chain.)Thus timing chain is eliminated from the system.In the animation in first page,u can see the approximate placing of the camshaft, close to crank shaft.The gears are used to couple them because the centre to centre distance of the two shafts are really small as all of them are closely packed in crankcase.

Comin to the second part.All the low revving engines bags loads of torque,not just pushrod engines. Thing is tat pushrod engines are always low revving.

Lol

Quite interesting points there. Tks

I remember about you explaining the difference during our ISG2G back in March... Good to see it recorded as a thread...

@Celebrity - That was about camshaft, tappet noise & engine configs Not about push-rod & spring-valve technology Lol!!!