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hipdoc 08-30-2017 10:05 PM
JE pistons
 
I had bought these JE pistons for my 2.7L engine years ago but forgot what the compression ratio was. Does anyone have a good guess. I don't see any markings to say except 89m on the inside.

hipdoc 08-30-2017 10:09 PM
Quote:
Originally Posted by hipdoc (Post 9721179)
I had bought these JE pistons for my 2.7L engine years ago but forgot what the compression ratio was. Does anyone have a good guess. I don't see any markings to say except 89m on the inside.
Here's some photos of the Pistons.

Steve@Rennsport 08-31-2017 07:19 AM
Measure the compression height and dome height, then call JE and someone may be able to help.

hipdoc 08-31-2017 02:06 PM
Steve,
How do you measure the compression height?

'76 911S 3.0 08-31-2017 03:26 PM
Have a look at JE's custom piston ordering form:

http://www.jepistons.com/PDFs/OrderInfo/custompistons-orderform.pdf

They provide images on how to measure what Steve mentioned.


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