Piston Identification
05-17-2016, 10:47 AM
Post: #1
Piston Identification
Can anyone identify this piston? I'm sure it's a 9.4:1 as it was out of an early Corolla

[Image: AEU86 AE86 - Piston Identification]
[Image: AEU86 AE86 - Piston Identification]
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05-17-2016, 11:47 AM (This post was last modified: 05-17-2016 11:52 AM by Ivan141.)
Post: #2
Piston Identification
My educated guess would be that it's a euro-spec 10.1 piston.
A low-comp 9.4 piston would be dished, not domed, and the 10.3 redtop pistons
have a slightly more pronounced dome and some circular cutouts at the bottom of the skirt.
Furthermore the 10.3 piston would have a 20mm full float wrist pin, not 18mm press-fit.

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05-17-2016, 12:20 PM
Post: #3
Piston Identification
As Ivan said these should be 10.1 Bigport pistons.

Daily Beater: Civic EG5
Work in progress Car: AE86
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05-17-2016, 12:47 PM
Post: #4
Piston Identification
hmmm that puts a different perspective on my future engine build.

Thought I had 9.4:1 so was going to splurge a load on some CP or Wossner pistons - no need to now really...

Thanks guys.
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