Moparts
Old TRW forged 340 piston #2332P
Posted By: Moparnut426
Old TRW forged 340 piston #2332P - 07/12/10 01:20 AM
Is this a good piston? 2332P?
They seem a little heavy, but theya re brand new, and were FREE. For my father in laws 340 for the Cuda. .030 over and the block is already a fresh .030 for a forged set up.
Kasey
Posted By: MR_P_BODY
Re: Old TRW forged 340 piston #2332P - 07/12/10 01:42 AM
They were anchors... if its a street car they will
work... for a bracket/race engine I would use a KB
before them... JMO
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 07/12/10 01:52 AM
Strictly a street engine. Might get beat on a little bit, but we arent worried about bob weight. I did order the scat I beam rod, so Im sure its gonna need some meet taken outa the pistons, and some added to the crank.
Kasey
Posted By: Baxter61
Re: Old TRW forged 340 piston #2332P - 07/12/10 05:07 AM
Is that the 2 or 4 valve relief ones? Had a buddy running a nitrous 340 in with the 2 valve relief running 11.60's. Raced that car every weekend during the summer for 5 years on 340 rods with milodin bolts. never had an issue.
Posted By: theclutcher
Re: Old TRW forged 340 piston #2332P - 07/12/10 03:16 PM
for free you could afford some lightening, for street, cut off domes and get liter pins.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 08:54 PM
Does anyone know the compression these pistons will yield? I have been told 10:1, but I did get a set of EDDY heads for the 340, and am just curious.
Kasey
Posted By: 70AARcuda
Re: Old TRW forged 340 piston #2332P - 08/09/11 09:16 PM
Quote:
Is this a good piston? 2332P?
They seem a little heavy, but theya re brand new, and were FREE. For my father in laws 340 for the Cuda. .030 over and the block is already a fresh .030 for a forged set up.
Kasey
Those should have a large dome unless they have been milled off..
with the large dome and 64 cc head..they were a 12.5 to 1 piston.....and they will not work with a close chamber head......
I have an old set of .060 with MP part number on them...and another set still in a 340 with the domes partially cut off..
also the Speed Pro piston 7035P is the same piston.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 09:41 PM
Are you sure??
These are brand new, have 2 valve reliefs in them, and have never been milled off. they have p2332 .030 on them. They have a slight chamfer on the edges of the top, and they dont look too bad at all. The similar piston for a 273 or 318 says 9:1 but I cant find anything on these.
I have a set of the 12.5 to 1 pistons in a dirt track 360 Hermaphrodite engine we ran for a while and those were milled off so they were legal. This piston looks nothing like any mill marks on it, and is tas a funky center hole in it that from what Dan at performance only and I can tell was used as a centering device to chuck the pistons up with.
kasey
Posted By: 70AARcuda
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:00 PM
ok...did a little research ...those are seal power pistons...they are the same as a trw 2316...
they are a 10.5 piston flat top...
Posted By: sshemi
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:01 PM
sounds like an old number for the trw L2316.
I actually measured the volume for one of those some time ago but i cant remeber what i came up with.
Think that the small flat dome took out the valve reliefs so they where +-0cc.
Posted By: sshemi
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:02 PM
Quote:
ok...did a little research ...those are seal prower pistons...they are the same as a trw 2316...
they are a 10.5 piston flat top...
you beat me to it lol.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:04 PM
Hope the chambers on the eddy heads dont make the compression too high for a street car.
I guess I can get a thicker head gasket from Mopar Performance or something.
Kasey
Posted By: 70AARcuda
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:07 PM
those pistons "might" have a positive deck height...
put the fel pro 5335 head which is .053 thick should help ya out..
Posted By: sshemi
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:08 PM
Quote:
Hope the chambers on the eddy heads dont make the compression too high for a street car.
I guess I can get a thicker head gasket from Mopar Performance or something.
Kasey
I dont think so because thats the way i ran mine.
You do have the heads made for a 340 with 65cc chambers?
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:10 PM
Im sure I do, do ya have the part number?? I ordered these from Dan so Im sure they are correct. They are for a 340 specifically.
Kasey
Posted By: sshemi
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:16 PM
p nr 60179.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:19 PM
I believe thats the set I have.
Posted By: sshemi
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:19 PM
a better idea would be to send the heads back and get the "closed" chamber modell and then mill the pistons to get 0 deck height.
That way if you want to build anything else in the future it will be easy to get pistons witch is not the case with the your heads.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:33 PM
This engine is as basic of a rebuild as you can get. My dad-in-law is not like me, once its built, its done, and hell just drive it.
No racing at all for him, just wnats to enjoy his car.
Kasey
Posted By: Performance Only
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:34 PM
Quote:
a better idea would be to send the heads back and get the "closed" chamber modell and then mill the pistons to get 0 deck height.
That way if you want to build anything else in the future it will be easy to get pistons witch is not the case with the your heads.
he already has the closed chamber heads, not the open chamber.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:52 PM
Hey Dan,
Got them pistons figured out. Do ya think ill be too high on Compression? and I have read the thicker head gasket that felpro 5335 is not one to have due to failures on higher compression engines. What would you do?
Thanks
kasey
Posted By: Performance Only
Re: Old TRW forged 340 piston #2332P - 08/09/11 10:58 PM
if thesmall dome just cancels out the cc's of the valve reliefs, you should be at 10.6-1 c/r
with the right cam and timing curve you should be able to run on pump gas without any problem.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 11:02 PM
Thanks Dan!!
Kasey
Posted By: S/ST 3040
Re: Old TRW forged 340 piston #2332P - 08/09/11 11:03 PM
I think you are thinking Fel-Pro 8553PT
It comes in the regular old Fel-Pro gasket kit.
I've run them on 13.1:1 +.030" 340 without issues.
.054" thick, 12.13 cc gasket volume.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 11:11 PM
thats the one.
Kasey
Posted By: S/ST 3040
Re: Old TRW forged 340 piston #2332P - 08/09/11 11:21 PM
1008 gasket is better suited to aluminum heads though.
You know the piston is going to weigh more than the rod, don't you?
That's not even counting the wrist pin you could knock a bull down with.
Posted By: Moparnut426
Re: Old TRW forged 340 piston #2332P - 08/09/11 11:24 PM
Oh I know, Im just using what we have. and its gonna run fine. Pluss its a stick car so Its gonna have plenty or "mass" for torque LOL
Kasey
Posted By: sshemi
Re: Old TRW forged 340 piston #2332P - 08/10/11 08:12 AM
Quote:
Quote:
a better idea would be to send the heads back and get the "closed" chamber modell and then mill the pistons to get 0 deck height.
That way if you want to build anything else in the future it will be easy to get pistons witch is not the case with the your heads.
he already has the closed chamber heads, not the open chamber.
Then the pistons wont fit.
They go above the deck.
Posted By: Chargervic
Re: Old TRW forged 340 piston #2332P - 03/28/20 07:38 PM
Re: Sealed Power 2332P and TRW L2316F pistons for Mopar 340 engines.
I just took the time to measure the valve relief volume (including the centering hole) in these pistons. This value is 5.1 cc.
Next I measured and calculated the volume of the dome at 0.018” deck height above the block, allowing for the chamfer at the edge, volume = 3.464 cc
The net volume of the valve relief is 1.636cc.
So, the net of the dome and valve relief is the equivalent of a full flat top piston with a deck height of 0.008” down the hole, for calculation purposes.
With a combustion chamber volume of 72 cc and a standard Fel Pro compostion gasket thickness of 0.039”, the actual top of the piston at 0.018” above the block. the C.R. is 9.604:1.
This should work fine with premium pump gas.
The 340 I'm doing right now is for a restoration engine, built to factory specs as much as possible.
Posted By: 500ciDuster
Re: Old TRW forged 340 piston #2332P - 03/28/20 07:52 PM
Hopefully you end up getting zero deck w/those pistons which would be great since the fel-pro's are close to .040 thick and w/closed chambers it will have perfect quench
Posted By: mopar dave
Re: Old TRW forged 340 piston #2332P - 03/28/20 08:28 PM
Yes they are clunkers, but I had those in my 340. Ran it to 7200 many times with stock rods. Never had an issue with them and mine were .060 over.
Posted By: dOc !
Re: Old TRW forged 340 piston #2332P - 03/29/20 02:41 AM
Yes they are clunkers, but I had those in my 340. Ran it to 7200 many times with stock rods. Never had an issue with them and mine were .060 over.
Clunkers you say ? ... spinning em UP to 7200
... gotta admit that they aren’t a Diamond piece ... but give those 2315s A BREAK !
A story about the L2315Fs .. years ago .... anyone remember Buckeye Sales ? ... my GRANDFATHER told me this story
He was buying from BUGeye at jobber price and WD on others. The sales guy calls HIM up and gives him a SUPER DEAL on several lines but especially TRW .....
HE bought A TON of pistons ! and most of those were the 2315s ....
If HIS memory serves ... something like 7 beans EACH !
Posted By: hemi-itis
Re: Old TRW forged 340 piston #2332P - 03/29/20 03:30 AM
Yes they are clunkers, but I had those in my 340. Ran it to 7200 many times with stock rods. Never had an issue with them and mine were .060 over.
Clunkers you say ? ... spinning em UP to 7200
... gotta admit that they aren’t a Diamond piece ... but give those 2315s A BREAK !
A story about the L2315Fs .. years ago .... anyone remember Buckeye Sales ? ... my GRANDFATHER told me this story
He was buying from BUGeye at jobber price and WD on others. The sales guy calls HIM up and gives him a SUPER DEAL on several lines but especially TRW .....
HE bought A TON of pistons ! and most of those were the 2315s ....
If HIS memory serves ... something like 7 beans EACH !
Your grandpappy died after the uNciViL war
Did you sell them all or leave them in a building in Meeeeeeeecheeegan??
Posted By: dOc !
Re: Old TRW forged 340 piston #2332P - 03/29/20 03:49 AM
My grandfather WILLED those to me back when .....I still had maybe 4 sets left but they were taken from the barn in northern Michigan ....
Posted By: mr_340
Re: Old TRW forged 340 piston #2332P - 03/29/20 05:31 AM
The TRW L2316Fs I had were very thick at the top, about 1/2". You could mill them down to a 0 deck height. You could mill out the bottom of the tops and take some weight off them as well.
Posted By: mopar dave
Re: Old TRW forged 340 piston #2332P - 03/29/20 06:36 PM
Very thick and heavy piston. I machined a wide path thru the center of the dome for better flame travel and rebuilt the engine with these pistons. I sold the engine to build my past 408, so don't know the out come. The 340 wanted 38* timing with that big dome in the way.