prototype head gasket installed
#53
06-06-2011, 02:28 AM
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the arp 2000s are the arp 425s, there really not 425s there 2000s but most people call them 425s, but they are much better then stock, here is a list of the order in strength
stock
allen head bolts (12.9) like what mightey diesel sales
arp 425's(2000's)
ats headstuds or a1 h-11 same thing
arp 625
then not sure on 14mm different brands and sizes. There is also another company out there that makes studs for most of the big tractor sled pullers, they makes studs for a cummins but not sure on strength and to were they would compare to the others. I have been meaning to call them up, but here is the site. index
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Titanium retainers for the valve springs? and what type of keepers? I myself am running just the ARP $450.00 12MM head studs I would recommend RE boreing block with my Toruqeplate I make If you go bigger than 12mm the cyl can pull upto .004 out of round when tightend I have not put a lot of time into the research but have been thinking of adding a screw machine to my shop and making a five gallon buckets full of each size needed for 5.9 12v and 24v
Last edited by kmkdiesel; 06-06-2011 at 02:28 AM. Reason: Automerged Doublepost
#55
06-06-2011, 09:33 PM
Diesel Bomber
i have springs not sure on the keepers or the retainers i think we changed them to and we did change pushrods and i did see someone had a ecm for the 6.7 that was hitting 5k rpms they said safely i dont think i would want mine to rap that tight cant remember who it was i think it was a company in cali. but i did see they had the ecm
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and thanks for letting me know about the studs
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and thanks for letting me know about the studs
Last edited by coors_man_2005; 06-06-2011 at 09:33 PM. Reason: Automerged Doublepost
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