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Thread: Federal-Mogul lightweight pistons questions and specs

  1. #1

    Federal-Mogul lightweight pistons questions and specs

    hello all, i have a nos set of discontinued lightweight federal mogul pistons with the part numbers of lw5020f and lw5021f. they are small block chevy pistons for a 383 stroker . i have little info other than the weight (448 grams), compression ( 10.5-1) and that they are 2618 alloy. if someone has an an old F-M catalog i could use some info like valve relief cc's,piston to cylinder clearance, compression height etc. i am building a new motor for next season and could use the info. thanks in advance for any info. gary

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Dec 2003
    Post that info on ST if no one can help you here..

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