What spark plugs do you run? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TX_Mudder · 02-02-2003, 10:58 PM

I use AC R45TS.
Just wondering what everyone else uses. Not so much asking which brand but rather what heat range.
I'm asking since I've just continued to use the 45 heat range since that's what was in my truck ever since I bought it years ago.
-- Mike

Prerunner1982 · 02-02-2003, 11:08 PM

i run NGKs, not sure on what heat range though.... sorry.

79BIG10 · 02-03-2003, 12:55 AM

Also NGK here. Not sure either on heat range but they're the ones that are the HD style.

PHOENIX · 02-03-2003, 01:50 AM

I also use the ac delco's.

ironwood · 02-03-2003, 01:53 AM

I know when I went to buy plugs my father-in-law got the 44's
that is all I know. That must be what he runs in his 71Chev 4x4

bigd65 · 02-03-2003, 09:24 AM

i run AUTOLITES 26, i have tried all the others and have went back to autolites (NGK AC etc...)

TC70C10 · 02-03-2003, 01:54 PM

AC's R45TS. Try to use AC filters when I can find them

TODDS 72 · 02-03-2003, 07:01 PM

ac R44T

**MJN** · 02-03-2003, 10:25 PM

R44T in the blazer and R45TS in everything else.

Low83 · 02-04-2003, 01:36 AM

AC RAPIDFIRES.

TX_Mudder · 02-04-2003, 08:03 AM

Why r44 in the blazer but r45ts otherwise?
Just wondering. The 44 are one range cooler, I think. I forget what the S is...
-- Mike

**68 Stepside** · 02-04-2003, 09:52 AM

Bosch Platinum +4's here. My truck doesn't get to run very often

, so I was having problems with plugs fouling out here and there. I switched to the Bosch Platinum +4's, and haven't had one foul since. They're the equivalent of R45TS AC's as far as heat range, and are in the 73 406 4 bolt in my 68 C10

ElGracho · 02-05-2003, 01:13 AM

Spark plugs, I don't need no steenking spark plugs (I've been driving my 87 recently)

On my 84 and 86 with Vortec heads, I run R44LTS plugs, you need the longer thread to actually get the electrode in the chamber.

*mike reeh* · 02-05-2003, 03:09 PM

I run delco R44T's in my 77 K25. Thats what is stock and what Ive always run..

I never did understand the whole heat range thing. Care to clue me in?

mike

**MJN** · 02-05-2003, 10:46 PM

R44T for the Blazer because thats just what I recently tuned it up with, other wise I run R45TS. I don't think the heat range really makes a difference unless you're burning oil. I had to get hotter plugs for my tractor, it quit fouling out plugs now.

arveetek · 02-06-2003, 12:41 AM

I'm with Joe....I don't use spark plugs anymore! I did away with engines that use spark plugs, wires, and ignition coils!

love it loud · 02-06-2003, 01:03 AM

diesels are great and all but hard as he!! to start when it's 30 below! (celsius)

ElGracho · 02-06-2003, 01:36 AM

Two words: block heater.
Even better, one word: garage.

love it loud · 02-06-2003, 01:40 AM

true, true.. but there's no garages or electrical outlets to plug in the block heater when you're miles back in the bush in a winter cut..

ElGracho · 02-06-2003, 01:41 AM

Then don't shut it down.

love it loud · 02-06-2003, 01:42 AM

ohhh! like let it run all night and over the weekend? hmm.. good idea..

ElGracho · 02-06-2003, 01:46 AM

Well, ok. I was being crass, I concede your point. I do really like that I can get 25mpg in a truck that I can actually use, rather than having to drive a little mini truck or small car. I have my gas trucks too!

love it loud · 02-06-2003, 01:48 AM

with un-matched torque to boot!

02-02-2003, 10:58 PM	#1
TX_Mudder Registered User Join Date: Jun 2001 Location: Houston, TX Posts: 126	What spark plugs do you run? I use AC R45TS. Just wondering what everyone else uses. Not so much asking which brand but rather what heat range. I'm asking since I've just continued to use the 45 heat range since that's what was in my truck ever since I bought it years ago. -- Mike __________________ http://home.houston.rr.com/chevy73/

02-02-2003, 11:08 PM	#2
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	i run NGKs, not sure on what heat range though.... sorry. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

02-03-2003, 12:55 AM	#3
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	Also NGK here. Not sure either on heat range but they're the ones that are the HD style. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

02-03-2003, 01:50 AM	#4
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	I also use the ac delco's. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

02-03-2003, 01:53 AM	#5
ironwood $640 truck// doesn't run Join Date: Jan 2003 Location: Buckley,Wa Posts: 122	I know when I went to buy plugs my father-in-law got the 44's that is all I know. That must be what he runs in his 71Chev 4x4 __________________ 74 C-20 LWB camper special stock350/350 53 Chevy 1/2 ton- in California, where the rust is not. Ready for some LOVE!!!

02-03-2003, 09:24 AM	#6
bigd65 Registered User Join Date: Mar 2000 Location: Clute, TX. Posts: 1,935	i run AUTOLITES 26, i have tried all the others and have went back to autolites (NGK AC etc...) __________________ 2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe

02-03-2003, 01:54 PM	#7
TC70C10 Registered User Join Date: Nov 2001 Location: Harvest, AL 35749 Posts: 337	AC's R45TS. Try to use AC filters when I can find them __________________ 1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch 1995 T10 Blazer 4.3L 4x4 (Son's) 2004 GMC Envoy 4.2L 2WD 2005 GMC Sierra Crew Cab Z71 4x4 5.3L 240 Fun Finder Travel Trailer Harvest, AL 35749

02-03-2003, 07:01 PM	#8
TODDS 72 Not the nightly winner Join Date: Jul 2002 Location: CHARLEMONT MA.USA Posts: 763	ac R44T __________________ 72C10SWB BLUE 350/350 86K10LWB BLUE 5.7 700r4 7.5' fisher plow 93S10XCAB4X4 BLUE 4.3 4L60e 69gmc c10 v8 3 on the tree yellow 72k10 swb 350 3 on the tree green 86k15 swb5.0L 4spd brown

02-03-2003, 10:25 PM	#9
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	R44T in the blazer and R45TS in everything else.

02-04-2003, 01:36 AM	#10
Low83 Registered User Join Date: Aug 2002 Location: Porterville,Ca. Posts: 118	AC RAPIDFIRES.

02-04-2003, 08:03 AM	#11
TX_Mudder Registered User Join Date: Jun 2001 Location: Houston, TX Posts: 126	Why r44 in the blazer but r45ts otherwise? Just wondering. The 44 are one range cooler, I think. I forget what the S is... -- Mike __________________ http://home.houston.rr.com/chevy73/

02-04-2003, 09:52 AM	#12
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,690	Bosch Platinum +4's here. My truck doesn't get to run very often , so I was having problems with plugs fouling out here and there. I switched to the Bosch Platinum +4's, and haven't had one foul since. They're the equivalent of R45TS AC's as far as heat range, and are in the 73 406 4 bolt in my 68 C10 __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

02-05-2003, 01:13 AM	#13
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Spark plugs, I don't need no steenking spark plugs (I've been driving my 87 recently) On my 84 and 86 with Vortec heads, I run R44LTS plugs, you need the longer thread to actually get the electrode in the chamber. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed Last edited by ElGracho; 02-06-2003 at 12:43 AM.

02-05-2003, 03:09 PM	#14
mike reeh 5 day ban, learn to behave. Join Date: Nov 2002 Location: san diego, ca Posts: 683	I run delco R44T's in my 77 K25. Thats what is stock and what Ive always run.. I never did understand the whole heat range thing. Care to clue me in? mike

02-05-2003, 10:46 PM	#15
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	R44T for the Blazer because thats just what I recently tuned it up with, other wise I run R45TS. I don't think the heat range really makes a difference unless you're burning oil. I had to get hotter plugs for my tractor, it quit fouling out plugs now.



Register or Log In To remove these advertisements.

02-06-2003, 12:41 AM	#16
arveetek Ultimate Diesel Dude Join Date: Oct 2002 Location: Southwest Missouri Posts: 328	I'm with Joe....I don't use spark plugs anymore! I did away with engines that use spark plugs, wires, and ignition coils! __________________ Project truck: '81 C/20 converted to 6.2L TURBO DIESEL bored .040", gear drive, 6.5L injectors/pump, custom pistons, custom 4" exhaust, 700R4, 4.10's Daily Driver: '95 K1500 Tahoe, 6.5L TURBO DIESEL, NP241, 4L80E, 3.42's

02-06-2003, 01:03 AM	#17
love it loud Calibration Engineer Join Date: Oct 2002 Location: Windsor, Ontario, Canada Posts: 361	diesels are great and all but hard as he!! to start when it's 30 below! (celsius) __________________ CANADIAN CONNECTION

02-06-2003, 01:36 AM	#18
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Two words: block heater. Even better, one word: garage. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

02-06-2003, 01:40 AM	#19
love it loud Calibration Engineer Join Date: Oct 2002 Location: Windsor, Ontario, Canada Posts: 361	true, true.. but there's no garages or electrical outlets to plug in the block heater when you're miles back in the bush in a winter cut.. __________________ CANADIAN CONNECTION

02-06-2003, 01:41 AM	#20
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Then don't shut it down. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

02-06-2003, 01:42 AM	#21
love it loud Calibration Engineer Join Date: Oct 2002 Location: Windsor, Ontario, Canada Posts: 361	ohhh! like let it run all night and over the weekend? hmm.. good idea.. __________________ CANADIAN CONNECTION

02-06-2003, 01:46 AM	#22
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Well, ok. I was being crass, I concede your point. I do really like that I can get 25mpg in a truck that I can actually use, rather than having to drive a little mini truck or small car. I have my gas trucks too! __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

02-06-2003, 01:48 AM	#23
love it loud Calibration Engineer Join Date: Oct 2002 Location: Windsor, Ontario, Canada Posts: 361	with un-matched torque to boot! __________________ CANADIAN CONNECTION

Register or Log In To remove these advertisements.