piston help

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DBo
Posts: 95
Joined: Sun Jul 08, 2007 4:50 pm
Car: 1993 240sx Sr20det

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ok so im installin my pistons tomorrow. i have CP pistons and i see no where on any of the pistons some sort of markin telling me which way the should face. the machinist who did my block looked at all of them and said he didnt see any markings also and that since their was no markings or valve relief indentions(not sure if thats the correct word) that it shouldnt matter which way they should be put in.

so im askin yall for help has anyone had this problem before? they are 86.5mm 9:1 Cp pistons. let me know if their is a certain way to put them in

thanks


DBo
Posts: 95
Joined: Sun Jul 08, 2007 4:50 pm
Car: 1993 240sx Sr20det

Post

anyone?

User avatar
boro drift
Posts: 2316
Joined: Thu Aug 14, 2008 4:26 pm
Car: '87 Supra, '92 240 with SR20 and '98 12 valve Cummins

Post

Post some good pics of the piston's dome,(top).

DBo
Posts: 95
Joined: Sun Jul 08, 2007 4:50 pm
Car: 1993 240sx Sr20det

Post

called CP and asked about them guy said their uni-fit. doesnt matter which way its facin

thanks

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the converted
Posts: 2767
Joined: Wed Feb 21, 2007 7:14 am
Car: '99 BMW M3 6.0
'88 Toyota Celica All-Trac (somewhere in Cali)
'20 Toyota Tacoma
Location: Boston

Post

Check for a cut out in the skirt for the oil squirters. If that's not there and there's nothing else that looks different, I wouldn't worry about it.


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