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#1 |
Senior Member
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Location: Spokane , Wash.
Posts: 790
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Spark plugs
Need to change plugs in the 68 , what brand / part nbr are y'all using ? It's a stock 396 .
Thanks ........................................ 409 ![]()
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Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD) |
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#2 |
Registered User
Join Date: Feb 2006
Location: Birmingham,Alabama
Posts: 260
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Re: Spark plugs
just use stock ac delco copper plugs.
I doubt they would use like a cr45ts but something along those linex
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1969 c10 stepside 250 inline six, 4speed granny tranny, 4.11 posi rear end |
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#3 | |
Registered User
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,368
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Re: Spark plugs
Quote:
Use a NGK BCPR6ES, they will fit your head, and have the smaller 5/8 wrench flat making it easier to work with, a gift if you run headers.
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Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs |
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#4 |
Woof?
Join Date: Jun 2005
Location: Raleigh, NC
Posts: 276
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Re: Spark plugs
NGK's are .. ironically .. a good plug for Chev small blocks. I don't think they'd be any different in a big block. Some LT-1 guys I know swear by them, and I've gotten good service out of multiple sets in my 480,000 mile 350 powered Caprice.
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1968 LWB CST BB 2004 Avalanche Z71 LT3. 2003 S-10 ZR2 (hers). 1997 Astro 1992 Caprice wagon, 500k stock miles. Nursing wounds after a bad wreck. 1997 Saturn - need gas mileage from something! |
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#5 |
Registered User
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,368
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Re: Spark plugs
I run them in my BB.
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Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs |
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#6 |
Senior Member
![]() Join Date: Nov 2005
Location: Spokane , Wash.
Posts: 790
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Re: Spark plugs
I used to run AC , but there hard to find and exspensive so i switched to Autolite , but they don't seem to last very long , i'll try the NGK , i run them in just about everything else anyway . Looks like we get one more race day this Sunday , so a new set of plugs is in order . Supposed to be sunny and cool , last chance to run a 14.25 , lol.
Later ......................................... 409.
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Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD) |
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#7 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Spark plugs
I've been running them in my Z71 and 67. They are cheap as dirt and work great. A lot of the fellers over at Gm-trucks.com swear by them and Taylor wires. So far they've performed well in my trucks.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#8 |
Senior Member
![]() Join Date: Jul 2006
Location: Leander, Texas
Posts: 850
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Re: Spark plugs
NGK is a great plug. AC and Autolite are also decent plugs. I think aside from picking a good brand, getting the correct heat range is as important.
My .02 cents.... B |
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#9 |
Senior Member
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Location: Leander, Texas
Posts: 850
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Re: Spark plugs
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#10 |
Registered User
Join Date: Apr 2006
Location: oklahoma
Posts: 10,670
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Re: Spark plugs
Me personally, ac delco exclusive. But autolites are pretty good. But what ever you do stay away from BASH ( exscuse me bosh). Me and mechanic friend where always asked what we thought of bosh and we always replied bash. They would ask us what do you mean by that. And we said that the only good thing bosh was good for was to throw them at a brick wall adn watch them bash! Sorry just had to get that out.
Aaron |
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#11 |
Senior Member
![]() Join Date: Nov 2005
Location: Spokane , Wash.
Posts: 790
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Re: Spark plugs
O.K. all you plug experts , my owners manual says to use AC 43-N , i've been using Autolite 403 . I couldn't find any NGK instock in town , so i went over to the AC Delco distributor , he sold me R43XLS , said there a direct cross over cuz 43-N doesn't exist any longer . The R43XLS appear to be longer than the Autolite 403 , did i get the right plugs ? Sorry for rambling .
Comments anyone ? Tks ....................................... 409 ![]()
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Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD) |
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#12 |
Senior Member
![]() Join Date: Jul 2006
Location: Leander, Texas
Posts: 850
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Re: Spark plugs
The longer the plug the cooler heat range of the plug. The AC Delco 43 sounds like the right plug. The 44 is common but if you have a little more umph in the motor it should be fine. I wouldn't go any hotter though unless you're going to be standing on all the time.
B-dub |
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#13 |
Woof?
Join Date: Jun 2005
Location: Raleigh, NC
Posts: 276
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Re: Spark plugs
You can probably get away with running a touch more timing with the 43. I think I got those in my Caprice, one of the few plugs I've put in that hasn't caused the car to ping... and it's been pinging for 250k miles despite the plug type. Too bad one of the 43's has been missing randomly at idle since I put them in. :P Best luck I had was an NGK plug that was one heat range colder than what the car called for. Electrodes stuck out a bit farther, but it didn't affect anything.
I wish they still made the AC Rapidfires. Those plugs were kickass when they first came out. Then they changed them, and they kind of sucked, and then they cancelled them. Make sure that gap is right, too! I heard from somebody that Bosch work well in Chryslers and some foreign cars, like Mercedes. I put a set in the Voyager, and yeah, they seem to be working well. Anything is better than the Champion platinums that were in it, though. As for GM's, Bosch does SUCK ASS in them. Speaking of which, NEVER, NEVER, NEVER BUY CHAMPIONS. Apparently, forever ago, they were the best. All my dad would ever buy. But since I started changing plugs almost 20 years ago, they've always sucked.
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1968 LWB CST BB 2004 Avalanche Z71 LT3. 2003 S-10 ZR2 (hers). 1997 Astro 1992 Caprice wagon, 500k stock miles. Nursing wounds after a bad wreck. 1997 Saturn - need gas mileage from something! |
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#14 |
Senior Member
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Location: Spokane , Wash.
Posts: 790
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Re: Spark plugs
What should the gap be ?? Stock point distributor w/ blaster coil .
Tks..................................... 409.
__________________
Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD) |
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#15 |
Woof?
Join Date: Jun 2005
Location: Raleigh, NC
Posts: 276
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Re: Spark plugs
Most older V8's I've come across take a .035 gap. Then again, most took the R-45 plug. Should be listed with the plug type, wherever you found that.
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1968 LWB CST BB 2004 Avalanche Z71 LT3. 2003 S-10 ZR2 (hers). 1997 Astro 1992 Caprice wagon, 500k stock miles. Nursing wounds after a bad wreck. 1997 Saturn - need gas mileage from something! |
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#16 |
Senior Member
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Location: Spokane , Wash.
Posts: 790
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Re: Spark plugs
Drag race only , 43's , 44's or 45's ??
I'm not good on decision's , lol.
__________________
Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD) |
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#17 |
Registered User
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,368
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Re: Spark plugs
I'll try to get you the number of the A/C plugs in my 396 tonight. I think they are 45's.
__________________
Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs |
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#18 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: Spark plugs
i only run ac delco or ngk i ran a set of of motor craft the last time in my f-150 the autolites never ran good in any of my trucks thats when i started running ac delco even in my ford lol
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#19 |
Senior Member
Join Date: Jan 2005
Location: SUNNY WARM BIKE RIDING COTTONWOOD ARIZONA
Posts: 2,097
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Re: Spark plugs
NGK in EVERYTHING i own. need to do that this week to be exact since emissions is this month. gotta install my small cats to.
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#20 |
Woof?
Join Date: Jun 2005
Location: Raleigh, NC
Posts: 276
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Re: Spark plugs
Advance Auto's website says R43XLS @ .035" gap. I still *highly* recommend the NGK V-power, plug number GR5, also @ .035" gap. It's also listed on the site, with a barrage of other plugs, of course.
__________________
1968 LWB CST BB 2004 Avalanche Z71 LT3. 2003 S-10 ZR2 (hers). 1997 Astro 1992 Caprice wagon, 500k stock miles. Nursing wounds after a bad wreck. 1997 Saturn - need gas mileage from something! |
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#21 |
Senior Member
![]() Join Date: Nov 2005
Location: Spokane , Wash.
Posts: 790
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Re: Spark plugs
Thanks everyone . I ended up installing the AC 43's @ .035 . I couldn't find the NGK's but i'll order some shortly . This sunday is the last race day here , winters coming . On monday we're diving into the spare 396 , it's a 67 Camaro 325 horse , 98cc closed chamber engine , don't know much more than that , hopefully it has some nice internals . That will be my engine for next year . I'm going to try and run Super street , high 12's / low 13's . That's about all i can afford with kids in college , lol.
Later ......................................... 409. ![]()
__________________
Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD) |
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