" From: "Thomas Garner" <Tgarner@xxxxxxxxxxxxxx> " " It's funny you mentioned oil going up through the pushrods, cause I " noticed that mine does too. I suppose my engine may have been replaced " at some point with an early 70's engine OR maybe it has a 4.0 head " already. IDK. I also noticed the head bolt modification had not been " performed as explained on Matt's site. I was preparing to do that, but " was a bit confused about the pushrods bring oil up. Since this appears " to be a later model engine than I expect, (probably early to mid 70's " I guess)I probably don't need to do the bolt mod right? if your rockers are shaft mounted - '64-'74 - they're lubed via the gallery and may need the bolt mod. if they're in bridged pairs - '72-up, and yes there's overlap - they're oiled through the pushrods and the bolt mod is irrelevant. if your engine's been rebuilt in the past, it could have the late-style oiling lifters and pushrods even though the original head doesn't need them. you might have a '72-up head but it's less likely you have an entire '72-up engine, as the bellhousing pattern was changed at that time to the larger '67-up v8. it could be adapted with a '67-'74 v8 bellhousing, but that's more work... major spotting feature: early block - starter under manifolds; late style - starter over by dist. afaik no 4.0 heads have tin valve covers. ________________________________________________________________________ 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