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As Aroogah says, there’s no replacement for displacement so that all sounds positive. I’d go for CoP if the £ is not huge, it’s a big improvement from what I hear. Also a GT 3076 (or whatever the latest version of that is) would be good on the Japanifold (I tried to get one of those BITD but people only seemed to sell cracked ones).
Dammit
NurseHolliday
In Volvo news, it is definitely a cracked block, what led to the initial breakdown is unclear at the moment, but it looks like the actual crack might have been me putting cold water in the very hot block. Which is a bit of a kick in the balls.
Any way, it's getting a 2.4 bottom end from the V70 which will give it a larger bore (2.3 up to 2.4) and longer throw. The rods and pistons are good for 700ish ft/lbs so I'll be fine there, but it will get an hone, new rings, and potentially new thrust bearings depending on how much float on the crank.
I'll keep the same head but it'll have a bit of a skim. The head is already ported and polished, upgrade to a new better flowing but still OEM manifold off a different model (Japanifold), same turbo, maybe upgrade to COPS but not sure on that at the moment.
Extra capacity should give it a bump in power, more torque and less lag.