Are you guys using anything special for intake/exhaust fasteners? I’m using a Datsun Motorsport header that has been on my car since the 70’s and a non-EGR L28 intake that has been extrudehone’d. The EFI will be controlled by a Haltech Elite 2500. 
I was going to just order some new fasteners from the ZStore but I thought I’d ask here first...

I run OEM studs . I’ve used the SS stud kit from ZCD - I believe - also . I have also used there copper flanged nuts - and they do stay tight . Tight enough to bring the stud out sometimes . But no washers to fiddle with . 

Steve, I have a new set of OEM studs in the E31 head. Help me though, ZCD?

I’m going to guess, “z car depot”? 

On 7/9/2020 at 1:11 AM, conedodger said:

Steve, I have a new set of OEM studs in the E31 head. Help me though, ZCD?

Z car depot is correct . So you have the studs and you just need nuts . I like the copper ones ZCD sells . Or some good ole nut and washers 

https://www.belmetric.com/hex-with-flange-c-3_51_53/ncf8x10w-copper-flange-nut-wide-flange-p-10435.html?zenid=sahrhmsei24sc6bg2gtlshqhn1

And these babies have 10mm heads! For those tight places around headers and such

or at the very least

 https://www.belmetric.com/jis-small-wrench-c-3_58_2280/nj8x12ylw-jis-nut-yellow-zinc-p-205.html?zenid=sahrhmsei24sc6bg2gtlshqhn1

I also like these studs they have. Easy to insert and remove. 

https://www.belmetric.com/m8x125-coarse-thread-c-9_71_1840/s8x45fylw-allen-drive-stud-yellow-zinc-p-15201.html?zenid=sahrhmsei24sc6bg2gtlshqhn1

Edited July 11, 20204 yr by zKars

Do you not need to run lock washers with those copper nuts?

22 minutes ago, heyitsrama said:

Do you not need to run lock washers with those copper nuts?

No, they are deformed so that installation causes them to lock on like a stover nut. Adding a lock washer would not be harmful if you would like but it would defeat the purpose of that nice large flange I think.

Edited July 12, 20204 yr by zKars

On 7/11/2020 at 3:00 PM, zKars said:

https://www.belmetric.com/hex-with-flange-c-3_51_53/ncf8x10w-copper-flange-nut-wide-flange-p-10435.html?zenid=sahrhmsei24sc6bg2gtlshqhn1

And these babies have 10mm heads! For those tight places around headers and such

or at the very least

 https://www.belmetric.com/jis-small-wrench-c-3_58_2280/nj8x12ylw-jis-nut-yellow-zinc-p-205.html?zenid=sahrhmsei24sc6bg2gtlshqhn1

I also like these studs they have. Easy to insert and remove. 

https://www.belmetric.com/m8x125-coarse-thread-c-9_71_1840/s8x45fylw-allen-drive-stud-yellow-zinc-p-15201.html?zenid=sahrhmsei24sc6bg2gtlshqhn1

Ordered, thx!

 

 

I just used red threadlock on my copper nuts - it hurt, but after a while they recovered - and the ones on the header have never come unstuck either. In fact taking one off to replace the washer with a different one, resulted in the nut pulling the stud out with it!!

 

 

Ouch! I use that newer blue gel on the treads. So far, so good. Positive review from this user.

 

 

 

 

 

I agree with the blue (as opposed) to the red lock-tite. Belmetric is my go-to place but then they're located 15 minutes from my house. Great people.