i may have a set from long ago . not sure of size ( overbore) will look
why do you need new ? are you overboring it ?
As you know , my feeling is unless something is really really wrong ,
old and go . Have done that 5-6 times in life no problems . “ expert “ will always say rebore, way it is .
(Sell up , best dentures)
so three jeep 4.0 done that way two i personally drove both to 300 k , zero
oil use , 318 also went 300k in 57 plymouth ..all old parts no machine work .
key is really good moly rings
be sure you know forged or cast pistons when comparing , both work but forged a lot stronger .
changing pistons gets into balancing . Any screw up boring wrecks rare 300G block I had a 327 chev ruined by “ pro machine shop “ just trying to remove ridge , a chip “fell down “ caught into guide roller deep scratch in wall . had that happen on small kohler engine too .
i did not remove ridge on jeeps could not feel any with finger tip , yes took a chance . It depends — your mileage may vary but if a teal ridge should be removed
02 jeep year had junk cast mopar pistons , skirts broke off , other one (98) had antifreeze leak into oil used those over again . third one had been run out of oil (ex wife)!
i bought the jeep pistons from silv -o- lite , a branch of keith black racing engines . 120$ for 6. 150 k miles ago ,,had machine shop do exchange on rod , press fit into rod like mopar . used as they came compared weights to old seemed ok
there are specs in fsm on taper etc measure block for yourself . ridge too
Even if pushing upper limit on wear it will work fine . Most of the time hardly worn at all !!
my 02 , I know . My cynicism results from 260 ford rebuilt for my dad with all new ovetbore etc burned so much oil had to be rebuilt agaiin 30000 later .
Shop kept saying it will wear in . I was left with thin wallet mad dad , and junk motor made of all new parts
As far as real wear many in club have gone 300k on hemi , Jerry Kocur went 300 k and 400k
is barely broken in , . I know , opinion , but backed by 5-6 examples .
on other hand if damage have to do it
On Jan 10, 2024, at 8:28 PM, Jean-Yves Chouinard <jymopar@xxxxxxxxxxx> wrote:
