Mel Posted February 18, 2004 Report Share Posted February 18, 2004 I have a question for you motor heads out there! I was in the garage and found an old set of TRW pistons part #L2417F. They should be for a 350 Chevy, but I'm not sure. I'm having a hard time finding any spec's on TRW pistons. Any of you machinist have some old books with TRW pistons in it? At best guess these are from around 94 or 95... maybe. Just wanted to know what they are b4 I trash them. Thanks in advance, Mel Krauss Link to comment Share on other sites More sharing options...
txtom Posted February 18, 2004 Report Share Posted February 18, 2004 Mel, They are listed as 350 pistons, and they'll get ya about 9.9 -1 compression on a 64cc head, and about 8.8 on a 76cc head. Varies slightly with deck, gasket, etc. One of the engine builders on this forum can get a lot more technical than I can about these, but I found you the basics. How's the new car coming along? Link to comment Share on other sites More sharing options...
ups88john Posted February 18, 2004 Report Share Posted February 18, 2004 they have been discontinued, and i believe trw is now speed pro. by the way, they are a forged piston. big john Link to comment Share on other sites More sharing options...
matt5858 Posted February 18, 2004 Report Share Posted February 18, 2004 I belive Probe Industries took over TRW John. Mel, put the pistons in the classifieds and see if you can get some beer money out of them . Link to comment Share on other sites More sharing options...
racerjim2 Posted February 19, 2004 Report Share Posted February 19, 2004 Two Valve reliefs per piston with a floting rist pin? Link to comment Share on other sites More sharing options...
Mel Posted February 19, 2004 Author Report Share Posted February 19, 2004 Tom, Thanks for info, I think they weighed about 650 grams or so... man heavy for todays pistons! The frame is close to complete, working on the cage now. Maybe after Easter or so. We're not gonna hurry it. Jim, They have 1 long valve relief. Heck this might have been what I ran back when u were in the street stocks! Thanks for all the info. Mel Krauss Link to comment Share on other sites More sharing options...
racerjim2 Posted February 19, 2004 Report Share Posted February 19, 2004 Wow,sell'em as antiques if they are that old LOL Link to comment Share on other sites More sharing options...
racerjim2 Posted February 19, 2004 Report Share Posted February 19, 2004 here is a picture from a long long time ago Link to comment Share on other sites More sharing options...
lmracer Posted February 19, 2004 Report Share Posted February 19, 2004 Mel, That was one of the required pistons in the Street Stock class of SAS in the early to mid 90's. It was one of three pistons that you could legally run. One long valve relief, floating pins, and yes, heavy by today's standards. I want to say it was 657 grams in .30 over. If you have a whole set you might have something worth selling though. Link to comment Share on other sites More sharing options...
Truck99 Posted February 19, 2004 Report Share Posted February 19, 2004 Dang Jim, that car is torn up! Ours looked like that once last season. Finished the race without the nose piece and right rear quarter panel. Link to comment Share on other sites More sharing options...
RodneyRodriguez Posted February 19, 2004 Report Share Posted February 19, 2004 I remember that car Jim , I too have a camaro that still looks like that !!!! Link to comment Share on other sites More sharing options...
racerjim2 Posted February 20, 2004 Report Share Posted February 20, 2004 heres how it looked at the finish took 4th place that night Link to comment Share on other sites More sharing options...
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