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12-29-2011, 06:12 AM
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Help to ID TRW PISTONS Part#
Hey guys,I have set of trw pistons but no idea what the fit.Here are the numbers I found.On the top 7051 P .030 .On the inside it says,TRW 202 98
Thanxs,for any help.stefanP 
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12-29-2011, 06:44 AM
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350
350 CHEVY, .030 over, dome piston.
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12-29-2011, 06:49 AM
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OLNOLAN,Thanxs man
 You have just made my day.Now to get my brother to work with me in the garage  stefanP
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12-29-2011, 06:51 AM
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cool
No problem Man.
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12-29-2011, 06:55 AM
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forgot
Crosses to a L2304F 30 in todays Sealed Power #'s(Speed Pro) these were the older ones that TRW made for them before it all became one company.
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12-29-2011, 11:51 AM
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Compression guess??
Here's a picture of the piston,
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12-30-2011, 08:13 AM
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Cr
Book info;
chamber cc = compression ratio 58= 11.40 64= 10.63 68= 10.15 72= 9.71 76= 9.31
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06-26-2012, 05:09 PM
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i was wondering where you found the info ? or do you have an older TRW catalog?
i have a dodge '74 360 , the pistons have TRW inside on one side, 463-99 on the other, trying to figure compression ratio / and how large a cam it can handle ,to finish my cam selection,lol any help is greatly appreciated, i will post this in a tread also . thanks
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