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Pistons 040?

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Old

Oct 10, 2010 | 02:23 PM

#1

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Joined: Jun 2010

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From: Hamilton, NJ

Car: 1986 Pontiac Firebird

Engine: 357ci 400hp 4BBL

Transmission: 700r4

Pistons 040?

I was reringing pistons on a chevy 350 that I bought and while cleaning the piston I found the numbers " 040 " stamped on the from of the piston. Does 040 mean that the piston is for a .04" over bore size?

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Oct 10, 2010 | 03:46 PM

#2

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From: Canada

Car: 1979 Malibu

Engine: Blown LSx

Transmission: T56 Magnum

Axle/Gears: 9"/wavetrac/35's/3.70

Re: Pistons 040?

Quote:

Originally Posted by MikeSammy

I was reringing pistons on a chevy 350 that I bought and while cleaning the piston I found the numbers " 040 " stamped on the from of the piston. Does 040 mean that the piston is for a .04" over bore size?

Most likely yes, A quick way to verify to to measure the bore with dial caliper.

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