Author Topic: g40 pistons  (Read 84 times)

Offline gxk69

  • Posts: 1
g40 pistons
« on: April 19, 2022, 02:50:13 pm »
Hi all,

Need some advice, my block are damage need to bore, whats pistons can i use? Can i use de AEX 77mm pistons? the car are now with stock head G60 injectors, intake GT and Eaton m45.

Offline rchez96

  • Posts: 1
Re: g40 pistons
« Reply #1 on: April 26, 2022, 10:32:02 am »
I believe the AEX pistons have a smaller diameter wrist pin so are instantly a no go.
If you are going to the effort of a rebore, I'd definitely look into getting some forged pistons.

Give Omega/Accralite a call - super helpful guys and a year or 2 ago they still had some G40 pistons on the shelf which they were looking to get shifted... to give you an idea on price they were about 1/2 to 2/3 of the price of the other forged options when I purchased a set.

Rod bolts can be had from Rottele racing in Germany - well worth replacing if you're going to the effort of the rest of the work.