Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
|
10-27-2023, 02:54 PM | #1 |
Registered User
Join Date: Jun 2019
Location: Chehalis, WA
Posts: 81
|
Spark plug wires over or under?
350, Hooker headers. How are people running their HEI spark plug wires? I don't like looms, so the question is do I go UP over the valve covers or DOWN below the headers and then up to the HEI?
|
10-27-2023, 03:20 PM | #2 |
Registered User
Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,392
|
Re: Spark plug wires over or under?
Have you ever tried to get regular sized wires into the original guide’s much less 8mm wires. Looms are your friends.
__________________
71 C-20 07 Magnum RT AWD |
10-27-2023, 03:22 PM | #3 |
Senior Member
Join Date: Dec 2009
Location: TN.
Posts: 8,429
|
Re: Spark plug wires over or under?
If you decide to go over the headers,
I have always used this type of holder in link below. There are many different brands and price ranges of these. Link: https://www.jegs.com/i/Spectre/865/18483/10002/-1 Also, these work well with the holders. Link: https://www.jegs.com/i/Spectre/865/4245/10002/-1
__________________
________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
10-27-2023, 07:15 PM | #4 | |
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,226
|
Re: Spark plug wires over or under?
Quote:
While I like the look of the wires rising up from below rather than above, I've never tried it. I've seen many examples out there...some better than others. I have to agree with Getter-Done on that style of wire management. The wires can be controlled well with these...think twisting the wire to make it go where you want and then locking in that slight twist. There's also those ceramic boots that look good and perform! -klb
__________________
67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
|
10-27-2023, 09:41 PM | #5 |
Registered User
Join Date: Sep 2016
Location: Ozark, MO
Posts: 573
|
Re: Spark plug wires over or under?
For me, I would pick the route that keeps the wires farther away from the exhaust. In general, with headers, that tends to be over the valve covers.
|
10-27-2023, 06:53 PM | #6 |
Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,299
|
Re: Spark plug wires over or under?
One option is to purchase the "Corvette wires" for a 1975. They have the correct ends, for the HEI, and will go under like the factory wires.
|
10-28-2023, 11:30 AM | #7 |
Registered User
Join Date: Mar 2014
Location: Pekin, Illinois
Posts: 442
|
Re: Spark plug wires over or under?
This is what I did. And I purchased the wire retainers for a Corvette as well. They come with one that attaches to a oil pan bolt for the front two wires.
__________________
Harley 1969 Chevy C-10 Long Bed, 350cid, 700R4 |
10-28-2023, 01:44 PM | #8 |
Registered User
Join Date: Sep 2016
Location: Ozark, MO
Posts: 573
|
Re: Spark plug wires over or under?
Zip ties work great for wire looms and are dirt cheap. As seen on roadkill and you tube.
|
10-27-2023, 09:42 PM | #9 |
Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
|
Re: Spark plug wires over or under?
__________________
1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
10-28-2023, 11:24 AM | #10 |
Registered User
Join Date: Jun 2019
Location: Chehalis, WA
Posts: 81
|
Re: Spark plug wires over or under?
Thank you for all the ideas and the pics.
The Hookers kinda suck in that they have a few really close-fitting spots for the plugs. I thought even about using the Accel shorty plugs. I just don't like the standard loom thing. I'm going to try both routings today and see what works. Not like my truck is a showpiece I think they're probably not long enough for the way under routing like the stock HEI 'Vette wires, but we'll see. |
Bookmarks |
|
|