Nissan Patrol 4x4 (Africa)

Guys, are there any high compression pistons available for the 4.8?

Why???? Did you break your motor? ??

No Tinus!!! Not yet! But if you have ever put 10.5 radio pistons in an engine you will know how it runs - like a bat out of hell!

Found these guys in my search for uprated internals for the TB45, they have a few options for the TB48 as well.

http://www.spoolimports.com/CatalogueRe ... ectType=27
http://www.spoolimports.com/CatalogueRe ... ectType=27
http://www.spoolimports.com/CatalogueRe ... ectType=27

Would this be a worthwhile mod - what power benefits could one expect?

Chris, a mate of mine had 10.5 pistons in a 145" (that's right) Land Rover with the old 3.5 engine. My oath but that thing ran.
Essentially, it seems more power for a given amount of fuel.

If impact on consumption is negligible, and power is more, why do manufacturers not do this as factory spec?

Whole lot of reasons I expect. More engine pressure = more heat and more strain on various components I imagine.

The problem is pre-ignition.
to allow the use of high compression pistons, high-octane fuel needs to be used.

Clem, from what I know of the places you travel to, I would not recommend this mod.