jacob80 Posted November 10, 2009 Share Posted November 10, 2009 What's the difference here? Is there any way to distinguish between the two? Also, are there any differences between the washers? Thanks Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 11, 2009 Share Posted November 11, 2009 What's the difference here? Is there any way to distinguish between the two? Also, are there any differences between the washers? Thanks Supposedly the turbo ones are stronger or something. There isn't a way to check either, they both have the same length and number of bolts. Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted November 11, 2009 Share Posted November 11, 2009 I believe the turbo bolts have a shoulder on them before the head on the bolt IIRC. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted November 11, 2009 Author Share Posted November 11, 2009 Actually they look identical to my L24 ones And strangely, one of my L24 head bolts seems to only have one thread, as in you could only turn it 360 degrees at max, kind of strange if you ask me.... Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 11, 2009 Share Posted November 11, 2009 Depending on your application, if you feel that it is absolutely necesary to have an accurate torque reading then buy some ARP studs. Its $100-something for them. Otherwise you can get a new set of bolts for $70 I think I saw, or just buy used. Perhaps I'm just going a little crazy because its so late. I use my old L24 bolts to hold our datsun motors on the engine stand. Once we are ready to add a crank and stuff to them we move the engine over to a stand where it mount from the side rather than from the rear, this way its more stable and it won't topple over so easily. Plus the side mount stand has the nice rotate thing on it. Quote Link to comment Share on other sites More sharing options...
woldson Posted November 11, 2009 Share Posted November 11, 2009 You will have to search, however, I believe the LD bolts are rated stronger and fit. Quote Link to comment Share on other sites More sharing options...
Xnke Posted November 11, 2009 Share Posted November 11, 2009 Not the headbolts for the LD28, as they are 12mm instead of 10mm. You are probably thinking about the main bearing cap bolts, which do fit, and are stronger. Headbolts from the ZX turbo are a little stronger, but look identical to the original Z and ZX-non turbo headbolts. There are no distinguishing characteristics that could be seen with the eye. Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 11, 2009 Share Posted November 11, 2009 I had an old L24 block and when I went to take it apart I broke a hex socket or whatever you want to call it, just trying to get the head bolts out. Quote Link to comment Share on other sites More sharing options...
Pyro Posted November 11, 2009 Share Posted November 11, 2009 I believe there is a thin ring (groove) around the top of the turbo head bolt. I hear it is a stronger bolt but don't know for sure. I have used both with equal success on my turbo engines. Quote Link to comment Share on other sites More sharing options...
junglist Posted November 11, 2009 Share Posted November 11, 2009 Not the headbolts for the LD28, as they are 12mm instead of 10mm. You are probably thinking about the main bearing cap bolts, which do fit, and are stronger. This is correct. I have the LD28 main bearing cap bolts on my L28ET, they take more torque than the regular bolts. Quote Link to comment Share on other sites More sharing options...
josh817 Posted November 12, 2009 Share Posted November 12, 2009 How much is more? Standard is... 60-70 ftlbs or is it 30-40 ftlbs. I get my rods and mains mixed up without the book. Quote Link to comment Share on other sites More sharing options...
ZIPPY Posted November 12, 2009 Share Posted November 12, 2009 ....and strangely, one of my L24 head bolts seems to only have one thread, as in you could only turn it 360 degrees at max, kind of strange if you ask me.... Sounds like you have a broken head bolt... Have you checked your block? Quote Link to comment Share on other sites More sharing options...
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