FTO Piston Differences

General Questions and comments

Moderators: IMC, Club Staff

Post Reply
User avatar
spetz
Oldtimer
Posts: 2915
jedwabna poszewka promocja
Joined: Wed Mar 03, 2004 6:00 pm

FTO Piston Differences

Post by spetz »

Hi guys,

Going through amayama and it seems each bank has different part numbers.
What would this be for?
I found it pretty odd as I really expected all 6 pistons to be identical.

Additionally, I've seen most other engines have aftermarket oversized cast pistons for a rebuild but have never seen them for an FTO.
Anyone know where there are some, if at all?
silverGPX
9.5"
Posts: 6793
Joined: Tue Oct 13, 2009 5:00 pm

Re: FTO Piston Differences

Post by silverGPX »

Cut outs for valves maybe


Sent from my iPhone using Tapatalk
User avatar
bjk
Totes
Posts: 5746
Joined: Tue Oct 04, 2011 1:34 pm
Location: Adelaide

Re: FTO Piston Differences

Post by bjk »

I know that RPW lists the CP ones for oversized values of 0.5, 0.75 and 1.00mm; but they're 8.5:1 compression and are expensive because forged.
POWERED BY #TIMKNOTTMOTORSPORT: 2013-2016
Image Image Image Image
User avatar
spetz
Oldtimer
Posts: 2915
Joined: Wed Mar 03, 2004 6:00 pm

Re: FTO Piston Differences

Post by spetz »

The valve cutouts seem the same but this would make sense as the intake and exhaust valves would be on different sides of the pistons depending on the bank they are in.

As for replacement pistons, I meant replacement OE pistons that are cast for near stock motors
Post Reply