" From: Davis <martin-davis@xxxxxxxxxxxxx> " " Yes from 1972 up the AMC 6 and 8 share the same bell pattern. And yes " the raised # under the motor mount bracket is the CID. 1967 to 71 the " deck height was lower on the v-8 and the bell on the 6 was different. " Davis " " " On Apr 2, 2011, at 12:41 PM, Lynn Howell <lynnhowlyn@xxxxxxx> wrote: " " > Do I understand correctly that essentially ALL of the AMC V8's (304, " > 360 and 401) share a common bellhousing pattern and that they all " > have the same physical dimensions? " > " > And that the V8 bellhousing pattern is the same as a 258? " > " > Meaning it's safe to assume any bellhousing (or auto trans) that'll " > bolt to a 258 will "bolt on" to a 304, 360 or 401? " > " > Any variations to the above in "some" years engines .... 258's or V8's? nb. on the 258s - 1st year was '71, with the small bellhousing [which dated back to the 172/184/196 with prewar origins] for 1 year only. they're rare, but they're the caveat on -any- 258. the jeep 4.0, being a development of the amc i6, also has the i6/v8 bellhousing, but theirs have a cutout for their efi's cps. nb. the cps can be moved to the crank balancer, with a kit. " > Also that an easy way to determine displacement for any given block " > is to look for (look at) the raised numbers cast into the block .... " > e.g. a 304 will have "304", cast into the block, a 360 will have " > "360" and so on. yes, amc essentially made only 1 block, with internal displacement variations, and they are usually marked as stated - but [rare again] there are service blocks which lack marking. they have the extra strength of 401 blocks but are often bored only to 360. bellhousing pattern is the same from the mid-'66 290 up through the 401. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com