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Re: 440 PISTONS
[Re: AB&E]
#952611
03/17/11 04:25 PM
03/17/11 04:25 PM
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Joined: Nov 2010
Posts: 204
washington
AB&E
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Quote:
Can anyone tell me what compression specs are for a trw piston #2292 it has been discontinued 
thanks
I have tried all other resources & dead end 
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Re: 440 PISTONS
[Re: AB&E]
#952612
03/17/11 05:40 PM
03/17/11 05:40 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
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master
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NE Oklahoma
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Are you sure of the 2292 number? 2292s appear to be Ford 390 pistons??
Last edited by Von; 03/17/11 05:41 PM.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: 440 PISTONS
[Re: Von]
#952614
03/17/11 06:12 PM
03/17/11 06:12 PM
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Quote:
Are you sure of the 2292 number? 2292s appear to be Ford 390 pistons??
motor is at machine shop & I am 99% sure that is the #. I came up with same thing ford. I guess I will have to wait untill the machine shop tells all. I am not one to wait 
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Re: 440 PISTONS
[Re: AB&E]
#952615
03/17/11 06:13 PM
03/17/11 06:13 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
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master
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Any chance they are 2295s? 2295s are a dome piston. Not sure off hand how big of a dome, probably .100 or so.
Last edited by Von; 03/17/11 06:14 PM.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: 440 PISTONS
[Re: JohnRR]
#952617
03/17/11 07:00 PM
03/17/11 07:00 PM
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Hey John I was hoping you would chim in  I do not know much about engine internalls.  But I am pretty sure these are flat tops they have a indent in the middle of piston & they look the same as the ones in my 383 on the floor. so if they are the correct #s & they are flat tops what would they be on compression 
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Re: 440 PISTONS
[Re: JohnRR]
#952618
03/17/11 08:42 PM
03/17/11 08:42 PM
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Quote:
is it a flat top piston or does it have a dome ? 2295 is a 440 dome piston , should be 12.0
John where did ya go 
I rechecked pistons & they are trw #2292p & they are for sure flat tops
thanks
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Re: 440 PISTONS
[Re: AB&E]
#952619
03/18/11 09:19 AM
03/18/11 09:19 AM
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Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR
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Quote:
Quote:
is it a flat top piston or does it have a dome ? 2295 is a 440 dome piston , should be 12.0
John where did ya go
I rechecked pistons & they are trw #2292p & they are for sure flat tops
thanks
No idea then , but it should be easy to figure out , find out the bore size and how far in the hole , or out , the piston sticks , does it have valve reliefs ? I've never seen a dish piston in a 440 , even the low compression pig motors .
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Re: 440 PISTONS
[Re: GomangoCuda]
#952621
03/18/11 02:20 PM
03/18/11 02:20 PM
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Joined: Jan 2003
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U.S.S.A.
JohnRR
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I Win
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Quote:
Quote:
Hey John
I was hoping you would chim in
I do not know much about engine internalls.
But I am pretty sure these are flat tops they have a indent in the middle of piston & they look the same as the ones in my 383 on the floor. so if they are the correct #s & they are flat tops what would they be on compression
Since that is a 390 Ford piston not a 440 piston, bore size is more than 1/4" too small and the compression distance is more than 1/4" too low. 
The compression would be ZERO. 
....
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Re: 440 PISTONS
[Re: JohnRR]
#952622
03/18/11 04:14 PM
03/18/11 04:14 PM
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I get the picture  But that is the # on piston. So I will just wait untill machine shop gets to me & see what I got.  thanks
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Re: 440 PISTONS
[Re: JohnRR]
#952624
03/18/11 04:51 PM
03/18/11 04:51 PM
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John John I said I was not real keen on engine internalls. But I am not a complete idiot  So no reason for going that direction  again I was just looking for help. thanks
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Re: 440 PISTONS
[Re: AB&E]
#952625
03/18/11 04:55 PM
03/18/11 04:55 PM
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Joined: Jan 2003
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U.S.S.A.
JohnRR
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Quote:
John John
I said I was not real keen on engine internalls. But I am not a complete idiot So no reason for going that direction again I was just looking for help.
thanks
Well you have been told by a number of different people that the number is a FORD 390 piston, all i picture is you doing this ... la la la la la la ... I can't hear you  ... without actually SEEING what you are talking about a person can only GUESS , and that doesn't seem good enough for you.
I never said you were an idiot , but if the number is for a 390 piston there can ONLY be two answers ....
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Re: 440 PISTONS
[Re: GTXX]
#952629
03/19/11 02:33 AM
03/19/11 02:33 AM
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Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
mike s
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Mi,U.S.A.
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TRW pistons should have a number starting with L. Sealed Power/Speed Pro pistons should start with a P. Sealed power/Speed Pro forged pistons were TRW pistons with a number change.
Leave the gun.......take the Cannoli's....Mike
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My machine shop has a 1977 book not there either 
