Zcardiesel Posted July 30, 2017 Share Posted July 30, 2017 Hi, I am wanting to know if the head studs for the L24-L28 gas engine will work on the LD28 diesel? Or if not is there a difference in diameter size between the head bolts on both engines? Looking to build a diesel and would prefer to run studs. Also, anyone ever get a price on studs to be made for the diesel through ARP? Thanks. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted July 31, 2017 Share Posted July 31, 2017 I will try to check what I have and compare the head bolts when I have time. I do know that some people have had rod bolts break or back off resulting in a ruined engine but again......will have to check diameter as compared to L28. Quote Link to comment Share on other sites More sharing options...
Zcardiesel Posted July 31, 2017 Author Share Posted July 31, 2017 Thanks for your answer and doing the little bit of leg work to find out. If they are the same I would like to buy a set for a build. Quote Link to comment Share on other sites More sharing options...
Zcardiesel Posted August 6, 2017 Author Share Posted August 6, 2017 Howler, did you find anything out with the L28 head studs and do you know if an L28 head gasket can be used on an LD28? Apparently diesel head gaskets are no longer available... Quote Link to comment Share on other sites More sharing options...
TimZ Posted August 6, 2017 Share Posted August 6, 2017 Howler, did you find anything out with the L28 head studs and do you know if an L28 head gasket can be used on an LD28? Apparently diesel head gaskets are no longer available... L28 head studs are 10mm - I thought the diesel was 12mm. Quote Link to comment Share on other sites More sharing options...
1969honda Posted August 6, 2017 Share Posted August 6, 2017 (edited) If the LD28 is not readily listed by ARP, you can send them a single LD28 stud or bolt and they will measure it and compare it to all of their currently made studs to find a match. I had a friend recently do this and they figured out the VK56 in the Nissan Titan uses the same rod bolts as a BMW street bike. The Nissan vk56 isn't listed as having an off the shelf bolts, so he was expecting to pay a lot for custom bolts but instead he saved several hundred dollars and bought two packs of the BMW bolts. *Edited to fix grammar Edited August 6, 2017 by 1969honda Quote Link to comment Share on other sites More sharing options...
Zcardiesel Posted August 6, 2017 Author Share Posted August 6, 2017 I was expecting to have to put in a request on this engine, but luckily you are right with them being able to cross reference another application. I will look into this and thanks for the advice. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted August 6, 2017 Share Posted August 6, 2017 (edited) Here is a link to the nissan diesel guys. They may even know where to source the proper thickness head gasket. http://nissandiesel.dyndns.org/viewtopic.php?f=2&t=3513&sid=b31391d8d27f0b9d29784c4151866d4f I did look at a Ld28 head I have and the holes are much larger than the ones for the head bolts on a l28. I am having trouble finding the head bolts for this one. Edited August 6, 2017 by HowlerMonkey Quote Link to comment Share on other sites More sharing options...
Zcardiesel Posted August 6, 2017 Author Share Posted August 6, 2017 I actually am a member over there already. Been a member of that forum for over a decade, but traffic is slower over there so getting a response is harder. I did place an order last weekend through Nissan Parts Deal and even though it showed the diesel head gaskets as available on the parts callout screen after I ordered the gasket I got an email the next Monday saying the gaskets are no longer available. I emailed Cometic to see if the could make an LD28 head gasket seeing as they sell two different thickness gaskets for L-gas engines. Quote Link to comment Share on other sites More sharing options...
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