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06-11-2004, 01:36 PM
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#1 |
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Registered User
Join Date: Jun 2003
Location: Hickory, North Carolina
Posts: 340
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spark plugs??
what is the best plug to use in my 350, and what gap should they be set at?
btw: it is just a regular 350 with headers.
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1972 k10 4x4 LWB (Sold in 2005  )
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06-11-2004, 01:43 PM
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#2 |
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Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,928
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I am glad you asked this again. I was searching for this earlier and didnt find the info from the past. I will assume this has an HEI.
I will watch this too. Dave
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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06-11-2004, 01:43 PM
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#3 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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points distrib or hei???
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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06-11-2004, 01:48 PM
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#4 |
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Registered User
Join Date: Jun 2003
Location: Hickory, North Carolina
Posts: 340
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it is points
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1972 k10 4x4 LWB (Sold in 2005 )
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06-11-2004, 03:37 PM
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#5 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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r44ts at 0.35
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06-11-2004, 03:41 PM
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#6 |
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Registered User
Join Date: Feb 2002
Location: Vacaville, CA
Posts: 2,746
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Champion RJ12YC .035 points, .045+ HEI.
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 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI |
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06-11-2004, 03:56 PM
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#7 |
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Registered User
Join Date: May 2000
Location: Flin Flon, Manitoba, Canada
Posts: 8,855
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hmm maybe thats why my new egine runs a bit rough?? I gapped my plugs to .035 but i have an HEI. Should it be .045 for all hei's in 350's??
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My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795 |
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06-11-2004, 04:09 PM
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#8 |
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Howzit?!?
Join Date: Jan 2003
Location: Maryville, TN
Posts: 1,266
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I think so Doob
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Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold |
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06-11-2004, 04:26 PM
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#9 |
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Registered User
Join Date: Feb 2002
Location: Vacaville, CA
Posts: 2,746
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At least .045, if you want to experiment or have a hotter coil I would try .050 or more.
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70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI |
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06-11-2004, 04:54 PM
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#10 | |
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Led Sled! Discs R 4 ME!
 
Join Date: Jan 2001
Location: Toms River, NJ, USA (Transplanted Hoosier)
Posts: 7,327
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Quote:
Sorry I cant give you a plug number but a plug set up to run a larger gap is better because the electrode will be perpendicular to the plug. A plug set up for a smaller gap will have an odd angle when gapped to .050-.060 and causes an uneven spark. Will it work - Yes Will it work to it best potential - no |
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06-11-2004, 05:16 PM
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#11 |
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Senior Member
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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I gap my plugs at .45 and I'm still running points. I get pretty good performance too.
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
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06-11-2004, 11:45 PM
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#12 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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I run R45ts on HEI's there a hotter plug You can go up a few ranges like r43 is colder than r44s and r45s are hotter than r44s not sure if they have r46ts and r47ts never checked lol.
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06-13-2004, 01:07 PM
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#13 |
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Its Magically Delicious
Join Date: Jan 2003
Location: oregon
Posts: 2,398
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what kind of plug would recommend with a stock 350, pertronix igniter under the cap... and a crane adjustable vacuum advance .... r45ts or something different ???
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71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee. |
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06-13-2004, 03:12 PM
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#14 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Id just run plain Ac Delco R45TS gapped at 0.45
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