While the bore didn't change, the 4.0L pistons did in '97. So did the rings. Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 From: adh@xxxxxxxxxxxxxxxxx (Sandwich Maker) Subject: Re: [Amc-list] AMC 304 Stroker build (some thoughts) To: amc-list@xxxxxxxxxxxx Message-ID: <200802181613.m1IGDha25543@xxxxxxxxxxxxxxxxx> " From: russ hathaway <russh97309@xxxxxxxxx> " " Andrew; read the thing about the 290 with 242 slugs. " What year 242 works best, any mods needed to the 290 " block and what size did it end up as......Russ i recall him saying 309, so that would be std bore 242s. i don't recall asking him if they were oem or aftermkt slugs or which brand, or if i did he didn't know. that aside, i'm under the impression all 242s are alike, though not all brands. the block was sonic checked to ensure adequate wall thickness [plenty] and other mods but none related to the slugs. +0.060" 242s would net 319 cubes on a 290 crank. i wonder if you could use a 290 crank and narrowed 4.0 rods [6.125"] in a 304 block? ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _________________________________________________________________ Climb to the top of the charts! Play the word scramble challenge with star power. http://club.live.com/star_shuffle.aspx?icid=starshuffle_wlmailtextlink_jan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://splatter.wps.com/pipermail/amc-list/attachments/20080218/b7e677f7/attachment.htm _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list