Re: 258 cam

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: <mail@xxxxxxxxxxxx>
" 
" I'll second that a 4.0L cam would likely be an excellent cam to drop in a 232.
" Make sure you spec a 99 or earlier Cam though as they changed the Timing chain
" setup in 2,000. If the parts books list any difference in years I would get
" one for a 1987-1990 4.0L.
" 
"    Originally there was a rumour that these cams had a slightly different ramp
" profile and are a little better than the 1990 up cams. Now It seem that either
" this was never or true or misinformation, or they have replaced the early
" cams numbers with the later cams as there is very little difference. I thought
" the ramp angle was changed slightly to help quiet the cam and help them pass
" emissions without air pumps, but this is all unfounded ramblings of a mad man
" at this point.

have you seen http://www.angelfire.com/my/fan/Jeep4.0Camshafts.htm ?
this is part of dino savva's site and he generally knows what he's
talking about.  i will say i think his pre-'80 cam info isn't clear or
complete.

perhaps the rumors you're thinking of were that the '91-5 ho cam was
retarded a few degrees from the '87-'90 renix setup.  this is still
murky to me.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought