WebJul 25, 2003 · As far as forged pistons that GM used in high performance motors they were made by TRW and do not have the vertical ribs inside the skirts. TRW replacements have these. Supposedly they are stronger with the extra material. There are sometime other differences as well. For example 69 Z28 forged pistons carrying the part number 3927172. WebDec 23, 2000 · The piston you have is a Federal-Mogul piston. Now before I go into details about the L2311 piston, let me give a little bit of information about Federal-Mogul. About 6 years ago Federal-Mogul merged with TRW engine parts. So really the L2311 is a TRW forged piston. Now on to the L2311 30. The last two numbers 30 mean the piston is +.030".
TRW piston info Hot Rod Forum
WebFeb 24, 2024 · People dont realize that a lot of the old TRW / Sealed Power forged pistons that were the same as the factory pistons all ran very tight clearances. I have three … WebSpeed Pro/TRW Ford 289 302/5.0 Forged Coated Flat Top Pistons+MOLY Rings Kit. My Account Customer Service. Buy Direct And Save 601.696.2161. Engine Parts Center. ... iron hops brewery
trw piston question. forged or cast? Team Chevelle
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