Piston identification !

[Jim Hunter]

Could anyone please shed some light regarding to what comp. ratio is the following piston ? Is from a European SC but not sure about the year.
Inside the piston markings : MAHLE, +93L7, CO11
Cylinder markings : MAHLE m, 95zn1w1






TIA,

Jim

[tom1394racing]

Jim

93L7 is the standard 8.5 CR Mahle Nikasil piston.

I have a box full of these with matching cylinders if you need a few.

[tom1394racing]

Jim

The 93L7 is the Mahle 8.5 CR piston for the 3.0 SC

For reference, the Mahle 9.3 CR for the 3.0 SC is - 95L67

The Mahle 9.8 CR for the 3.0 SC is - 95L70.

Here's some pics:

8.5 CR - 93L7


9.3 CR - 95L67


9.8 CR - 95L70

[laughac]

I'm told these will fit into my 2.7 block even though they came from 3.0.

Can anyone help confirm this?

Cylinders have "MAHLE G**" cast on one side & "95ZN1W4" on the otherside, 11 fins.

On the inside of the pistons, "Mahle" "93L7" "++" "CO11"

[Flat6pac]

Will not fit

[Eagledriver]

The headstuds are farther apart on the 3.0 and up.

[laughac]

Thank you.
Somebody confused me with a big bore kit they said would fit the 2.7 crankcase.

[Flat6pac]

Big bore kits for the 2.7 is the 92mm 2.8 and I think there was 2.9 also but the walls have to get pretty thin. I ve never seen a 2.9 but heard of them.
Bruce