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Piston ID
#94806 12/03/18 06:40 PM
Joined: Jan 2010
Posts: 349
Milton, Ontario, CANADA
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dodgycanuck Offline OP
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dodgycanuck
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Joined: Jan 2010
Posts: 349
Milton, Ontario, CANADA
Hey everyone!
I’ve got a set of pistons I’m trying to find if they will work for my 250 build @ 15 psi...
They are stamped L2396 on top... what are they?
Older TRW forged?
There is a large chamfer on top.

Please help!

I have not been able to find anything on google.
Re: Piston ID
dodgycanuck #94810 12/03/18 11:14 PM
Joined: Nov 2013
Posts: 482
chillicothe ohio
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intergrated j 78 Offline
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intergrated j 78
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chillicothe ohio
A picture would help a lot. Jay
Re: Piston ID
dodgycanuck #94815 12/04/18 12:53 AM
Joined: Jan 2010
Posts: 349
Milton, Ontario, CANADA
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dodgycanuck Offline OP
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Sorry, to can’t add pictures to the message.
Re: Piston ID
dodgycanuck #94829 12/04/18 08:37 PM
Joined: Jul 2004
Posts: 365
Vernon, CT
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Armond, II#298 Offline
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Vernon, CT
This is the best I can do:
STOCK TRW FORGED PISTONS
PART NUMBER L2396F
250 CHEVY ENGINES
75 THRU 84
1.655 COMPRESSION DISTANCE
.073 DISH, CHAMPFER
5/64 5/64 3/16 RING LANDS

Last edited by Armond, II#298; 12/04/18 08:39 PM.
Re: Piston ID
Armond, II#298 #94830 12/04/18 09:55 PM
Joined: Nov 2013
Posts: 482
chillicothe ohio
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intergrated j 78 Offline
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intergrated j 78
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Posts: 482
chillicothe ohio
From my LIMITED piston knowledge and research, that is the stock factory pin height and the dish is about right. I have read about stock replacement pistons being anywhere from .060 to .115 dish. Using these will give a compression ratio in the low 8s. Member TLowe would be able to give a lot more accurate information. Jay

Last edited by intergrated j 78; 12/04/18 09:56 PM.

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