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#1 |
Active Member
![]() Join Date: Jan 2025
Location: Clarkdale, Arizona in a van down by the river
Posts: 191
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Which spark plugs and wires to buy?
I want to change out the spark plugs and wires so which set to get? I am thinking of the wire set with the ceramic boots on them to help with heat unless there is a reason against them or they are poor quality.
Oh also, is it ok to use anti-seize on the plugs?
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'72 C10 / 402 ___________________________________________ Freedom isn't safe, it requires you to take responsibility for your own life, your own safety, and your own success. It carries with it the possibility of failure and the understanding that you're working without out a safety net. If you give the state the responsibility for any of these you also give up the freedom that accompanies the responsibility. |
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#2 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,854
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Re: Which spark plugs and wires to buy?
No need for anti-seize in a steel head . I just use the AC delco plugs recommended for the engine . Does your truck have HEI ?
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#3 |
All stock and staying that way
![]() ![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 2,012
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Don't bother with the latest AC Delco plugs. If you want lasting quality, pick up some NOS green stripe AC plugs from EBAY. Same with the other tune up related parts. Most of the stuff now is questionable quality.
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1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#4 |
Registered User
Join Date: Oct 2008
Location: Austin, TX
Posts: 90
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Re: Which spark plugs and wires to buy?
I typically run autolite 24, msd streetfire wires (the cut to fit ones, msd 5553 is what I used on my 70 with hei), ac delco cap & rotor
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#5 |
Registered User
Join Date: Jun 2019
Location: Chehalis, WA
Posts: 117
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Re: Which spark plugs and wires to buy?
For ignition stuff, I don't use anything other than MSD. For a stocker, you don't need anything extreme.
It's fine to use anti-seize as long as none of it protrudes into the chamber, but it's not needed on steel-to-steel. I still stick with Champion plugs and have no issues at all, even in high-performance engines. |
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#6 |
Registered User
Join Date: Sep 2012
Location: Idaho
Posts: 746
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Re: Which spark plugs and wires to buy?
Right now I gotz some standard style Taylor plug wires from summit and delco plugs.
Any one know the cross reference for NGK plugs and 1970 #186 heads with the old washer type plug
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'81 K20 Silverado , '99 Dodge Cummins 4x4, '05 Dodge Cummins 4x4, Pinstriping-Lettering-Specialty Painting |
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#7 |
Registered User
Join Date: Apr 2014
Location: California
Posts: 993
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Re: Which spark plugs and wires to buy?
If you want something easy and affordable and usable out of the box, that doesn't need to be assembled, you can't beat NGK plugs and wire sets.
The wires are bright blue with orange boots, and might put some folks off. You can find them at Rockauto.com typically. |
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#8 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,650
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Re: Which spark plugs and wires to buy?
I like Taylor Spiro-Pro cut-to-fit wires because I prefer their terminals over MSD.
If your engine has stock exhaust manifolds, pre-cut sets will sorta work. I've found there's always one or two wires that are bit too long or too short. Make sure you get the correct terminals -- straight, right angle, HEI, non-HEI, etc. As for plugs, you can't go wrong with NGK or Bosch. Their platinum plugs will outlast many of us! I also like the suggestion above by member jumpsoffrock.
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Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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#9 |
Senior Member
![]() ![]() Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,374
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Re: Which spark plugs and wires to buy?
I installed Taylor Pro Series, pre-made for a BBC. They fit nicely, and there's no contact with anything short clips, cap and plugs. In my case, installed w/o wire heat shields. It's cooled with Cerakote finished exhaust manifolds & stove/pipe, FWW.
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly guide (kit) for restoring this truck from the ground up, complete with details including full hardware descriptions. Much of the info. applies to all 67-72 GM. My build thread, with some info. about the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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#10 |
Registered User
Join Date: Dec 2014
Location: Tucson, AZ
Posts: 775
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Re: Which spark plugs and wires to buy?
For wires, you can do the Taylor 10.5's....
![]() I called their tech line (way back), and told them my wants for a premade set, and the tech asked what kind of badassery I was running to need 10.5? I told him it's almost stock, I just think that they look cool.... ![]()
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1987 V20 farm-hand rescue 1998 C2500 lot-rot rescue |
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#11 |
Registered User
Join Date: Jul 2022
Location: Rockford, Mi
Posts: 79
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Re: Which spark plugs and wires to buy?
Accel Super Stock black wire kit from mid 70's corvette routed down the back of heads and side of the block under the manifolds, thru the motor mounts for a clean look.
Champion copper core spark plugs. |
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#12 |
Senior Member
![]() Join Date: Jun 2022
Location: San Ramon,CA
Posts: 676
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Re: Which spark plugs and wires to buy?
Not sure what kind o' tech work you do, but if you already own a ratchet crimper you only need a set of jaws to crimp your own. I paid $16 IIRC
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1970 C10 Custom longbed 350/350 Code:
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