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OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs. |
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#1
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coil rail bracket for 630 head
i replaced my 0331 head with a 630 head a couple of weeks ago. After being out of town for a week, i finally had enough day light to get the brackets done, and i promised some picutres. My brackets are not as pretty as some of the others i have seen, but they were easy, cheap, and are ROCK SOLID.
I started with some sandard 1/4" 90 degree angle irons and then "opened" them up. The brackets fit onto the 1/4" valve cover studs perfectly. I had to drill a 3/8" hole on one arm between the 'factory holes' for the 5/16" bolt to go through. 'Original' 90 degree bend on top and 'custom' bend on the bottom. ![]() I tried to use the original bolts, but they need an 8mm nut. My lowes had no metric stuff, so i just switched to 5/16". I also bought grade 5 bolts. I didnt use a washer, because the bracket acted as one. Here is the new vs. the old ![]() I also used grade 5 'flared' nuts. This way i didnt have to strugle with a washer on the bottom side. ![]() They went on real easy. Didnt even need a wrench on the bottom nuts, just held them with my fingers, while i ratcheted on top. I'll check them in 100 miles or so to make sure they are still snug. And like i said above, it is rock solid. This rail isnt going anywhere. I used 3 brackets in total. 2 in the back and one near the front. ![]() ![]() ![]() I got everything at my local lowes. Cost was about $6. Enjoy the holidays. ixj |
#2
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Re: coil rail bracket for 630 head
Nice! this is something I'll probably have to use someday!
You should paint them black to match ![]() One of the best ways i've seen to spend $6! |
#3
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Re: coil rail bracket for 630 head
here is the best pic I could find of mine:
![]() Its a piece of aluminum 1/8" bar I had laying around. It has the bend that you see at the top of the coil rail and another 90* that goes under the rail. |
#4
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Re: coil rail bracket for 630 head
wow that's a lot easier than i envisioned, thanks for the pics, it makes it alot easier for me to comprehend now.
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#5
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Re: coil rail bracket for 630 head
Thanks for the pics Talyn. PRETTY! And the valve cover too! If it's warm enough, maybe I'll paint mine red. Aluminum (like you used) or maybe stainless would be better than steel.
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#6
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Re: coil rail bracket for 630 head
I just finished my swap here are my brackets. I also went with a ground strap on the rear bolt.
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#7
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Re: coil rail bracket for 630 head
Pretty work!
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#8
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Re: coil rail bracket for 630 head
I know this thread is as old as father time but I'm researching and need clarification on how to do this. Did you guys have to cut down the mounting bolt holes in the back of the coil or did you guys get it to fit with the longer bolts as is?
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#9
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Re: coil rail bracket for 630 head
I'll try to post this pic for clarification. I'm a noob so hopefully it works. |
#10
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Re: coil rail bracket for 630 head
Why not just upgrade to spark plug wires?
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#11
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Re: coil rail bracket for 630 head
How much does this cost and what is it mounting to?
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#12
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Re: coil rail bracket for 630 head
In my case it's bolted to the head with a Screamin Demon coil.
https://www.naxja.org/forum/showthread.php?t=1148702 But K Fab sells this kit that mounts on the wheel well or anywhere else. https://www.ksuspensionfab.com/store...sic_Kit.html#/ |
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