914-6 2.7 build...Piston type?, Pistons for a weber carbed 2.7 build Options

[zfisher6164]

Engine rebuild on a 2.7 weber carbed engine and the pistons used 8 years ago are fuel injected pistons and I have gotten a few opinions of the type of piston to use by none are
definitive. Any ideas?
thanks
zac

[zfisher6164]

thanks for the replies the CIS pistons are what I found from a previous rebuild I am looking for a reliable street engine and was wondering if the nicki mahle piston and heads is needed.

[Superhawk996]

thanks for the replies the CIS pistons are what I found from a previous rebuild I am looking for a reliable street engine and was wondering if the nicki mahle piston and heads is needed.

There are other options

Nickies (brand) cylinders / Mahle pistons are top of the line. Nickes are not exactly the same thing as OEM Nikasil. Nickies are CNC from billet as just one differentiator. However the OEM 2.7L Nikasil are great cylinders and were in existence long before there were Nickies (the brand)

JE makes 90mm pistons that you should be able to use if your existing OEM Nikasil cylinders are in good shape.

The 2.7l heads pose some challenges for an acceptable compression ratio perspective but I’d assume JE has that worked out with their dome and valve relief. I haven’t researched the 2.7l pistons much so I’m not an expert. I only know enough about 2.7s to be dangerous. Any info I know is from the Bruce Anderson book and what I found as I was going back and forth on 2.4l vs 2.7. I went 2.4l - part of that being that the 2.7l is somewhat unloved for a multitude of reasons one being the lack of clarity on good, affordable, buildable 2.7l variations.

Keep digging. You’ve got homework to do!

https://auto.jepistons.com/pistons-381250s