Checked your timing gear?

No, from the crank gear up, the 360/318/340/273 is/could be identical. THINK abou it...........

Click to expand...

Try this for a THOUGHT........:thebirdm: Hahahaha!!! ;)

But seriously - work with me on this and tell me where Im wrong......

As a GENERALISATION (lets assume factory builds to keep this simple) ,

.......a 360 will generate greater rotational force though the crank than a 318, simply because as a general rule, the explosions in the cylinders are greater, and thus make more rotational torque.

I think Im safe in assuming that anyway.

Now - This rotational torque is tranferred through the timing chain to the cam gear and valve train.

I hope thats a correct assumption?

IF........the rotational force through the chain is greater as the engine climbs through the rpm, wouldn't that mean the chain is subject to greater stresses?

Anyhow - Thats the basis of why i was told 360s were harder on chains than 318s "as a general rule of thumb"

Make sense? - or is there a flaw in the logic?