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Author Topic: ARP Head Studs Mazda Miata 1.6  (Read 5458 times)

Vanishing Point

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ARP Head Studs Mazda Miata 1.6
« on: November 09, 2014, 01:47:41 AM »

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mitch1204

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #1 on: November 10, 2014, 05:28:50 AM »

Hard to tell when they don't give the dimensions. They are about 5" long. I would be leery over a stud since they are a bolt. Notice the stud is skinnier in the middle where as the bolt is as wide as the threads.

I wonder why they include lubricant as it will change the real torque value if you use it.

I had success reusing my old bolts. Maintain bolt orientation and go to max torque.

I started a thread with the same questions. I special ordered some from AAP and they were too short. After a dead end search and someone else explaining you can get away with reusing the old ones I gave it a try. So far about 500 miles and no problems. I'll torque in about another 500 miles just to be sure.
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Sceeter

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #2 on: November 10, 2014, 09:42:18 AM »

They send the lube to put on the treads to get the true torque, any friction throws the torque numbers off. 
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Rocketman

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #3 on: November 10, 2014, 03:31:01 PM »

Yes the ARP head studs for the 1.6 Miata will work, it's exactly the same engine block & head
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Vanishing Point

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #4 on: November 10, 2014, 05:02:17 PM »

Thank you for all of your answers, I think I will order the set.
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mitch1204

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #5 on: November 10, 2014, 07:08:20 PM »

They send the lube to put on the treads to get the true torque, any friction throws the torque numbers off.

Yes and no, it's a debated topic. Basically I go by the manufacturer's manual. Some will say use a few drops of oil, some will say nothing. It's just like torque sequence, go by the book.

A general rule of thumb is to chase your threads and use new bolts. Friction then should be at a minimum. Along the same thoughts lubricant can reduce friction torquing it can also reduce holding friction.

Let us know how your order goes. Advance sure has it wrong. I crossed referenced it with a Miata and they list the same wrong bolts. I believe they were Victor Reinz. If it's another brand then you stand a good chance of them being correct.
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Rocketman

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #6 on: November 10, 2014, 08:05:32 PM »

ARP has very specific instructions for their bolts. They're very different than stock head bolts. Studs respond quite differently - so their instructions reflect that. The pattern is the same, but torque #'s and steps through the pattern are different
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mitch1204

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #7 on: November 13, 2014, 10:36:41 AM »

You're very knowledgeable Rocket. Thanks for the insight on these problem areas.
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jaxchecker

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #8 on: June 18, 2021, 08:43:02 PM »

So what I get from all this, any of these head bolts would be fine to use on my 91 capri?

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Rocketman

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #9 on: June 21, 2021, 10:01:53 PM »

You need a set for the 1.6L, 1994 miata used the 1.8L.
Though they may be the same between the two, stick with the listing for the 1.6L (89-93 IIRC)
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jaxchecker

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #10 on: June 26, 2021, 11:19:15 PM »

Thanks for getting back to me about the bolts. So what your saying is that I need the  1991 MAZDA MX-5 MIATA 1.6L L4 Head Bolts.
Seem the part number is B66010135A either way.



I'm curious though, what would you use in your engine? Studs or bolts?
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Aus Capri

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #11 on: July 01, 2021, 06:41:39 AM »

The studs are obviously stronger and do a good job, but unless your gonna be running a lot of boost and making heaps more than stock power I would not bother.  I have the arp studs in my motor but it's got a giant turbo and sees up to 30psi of boost. Stock or close to stock upgrades definitely don't need em.
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WashiestSnake

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #12 on: July 12, 2021, 01:32:23 PM »

You need a set for the 1.6L, 1994 miata used the 1.8L.
Though they may be the same between the two, stick with the listing for the 1.6L (89-93 IIRC)

Can confirm that the head studs are the same.
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EShepherd

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Re: ARP Head Studs Mazda Miata 1.6
« Reply #13 on: July 20, 2021, 07:49:17 AM »

Late to the party here, but I got a set of the ARP studs that Flyin' Miata makes for the 1.6L Miata. They weren't super back-ordered like all the other ARP fasteners. A little pricier, but not too much. They'll work, too, if you're looking for something a little stronger than a head bolt.
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