87.5mm pistons in k20?

[Aaron1259]

Got my hands on a cheap set of k24 CP 9.0:1 87.5mm pistons, Is it safe to bore +1.5mm on stock sleeves? I'm planning to run 12psi on a k20a3 with k20a2 crank and forged rods.

Also will these pistons fit forged k20a2 rods?

[Rage King]

Safe to bore but make sure you balance the crank, rods and matching head gasket to spec of your new pistons.

Whilst your at it might aswell get high flow oil pump.

[Aaron1259]

Ok thanks, will I still need an a2 oil pump if I'm not redlining past 8k

[Rage King]

I would recommend it. U will be tempted to redline