I am looking for specs on TRW pistons and am running into dead ends everywhere. they are L3027F, bore .30 over, on a 454 BB. Can anyone help me with this are at least send me off in the right direction? Thanks in advance!!

I looked everywhere I could think of and no luck. sorry.
Summitracing may have an old trw book they could look in.
Other than that I really don't have a clue.

You could try www.racingengines.com He is very knowledgable.

I had the same problem,this is what I found.TRW Pistons are now Speed Pro Pistons.The part # at summit for your pistons is STL-H661P30.Not sure why that happened because my part # was same as TRW's.couldn't find any info on yours but give em a call they should have all the data.Hope that helped.