Moparts

Anyone remember the TRW L2380P advertised compression ratio?

Posted By: mopar346

Anyone remember the TRW L2380P advertised compression ratio? - 04/19/17 02:34 AM

I am looking for a good piston for a 360 to put it in the 9-9.5:1 compression ratio and ran across a set of TRW L2380Ps and was just wondering what the advertised ratio was. I know there are many factors involved in figuring the exact ratio but since it is not critical that is be exact I just want enough compression to be effective and have no trouble with pump gas. I have a set of uncut J heads with 1.88s and the deck is stock height.

Thanks in advance, Kevin
Posted By: perfmachst

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/19/17 05:34 PM

the number 2380 is for AMC 401 engine. 2386 is for 360 mopar. CR, frm 9.23 to 8.59 depending on chamber volume. it is a flat top piston.
Posted By: mopar346

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/20/17 03:44 AM

Thank you.
Posted By: 70AARcuda

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/20/17 04:35 AM

http://www.ebay.com/itm/360-Chrysler-Mop...526.m2548.l4275

Use trw 2380 piston in a mopar 360 back in the 80s...
Posted By: mopar346

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/20/17 12:23 PM

That is what prompted the question but after looking at them on the zoom I see a few things I don't like not to mention that he list them as forged and I thought all their forged pistons ended with an F not a P.
Posted By: dogdays

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/20/17 06:01 PM

They are forged.
L2386P

R.
Posted By: Porter67

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/20/17 08:28 PM

If this has been balanced it might not be a bad deal for someone.

http://www.ebay.com/itm/Chrysler-360-Rotating-Assembly-/162443760128?hash=item25d2671200:g:GdAAAOSwWxNY1YNv&vxp=mtr
Posted By: mopar346

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/21/17 01:42 AM

www.ebay.com/itm/Chrysler-360-Rotating-Assembly-/162443760128
Posted By: mopar346

Re: Anyone remember the TRW L2380P advertised compression ratio? - 04/21/17 01:45 AM

Originally Posted By dogdays
They are forged.
L2386P

R.


Looking at the pictures, pretty sure it's 2380. Might still be forged though.
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