Spark plug recomendations? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bluex · 09-14-2004, 04:17 PM

Looking to see what you guys would run with this combo.

.060 over 350, flat tops 4 valve reliefs, moly rings
882 heads, stock rework
Summit k-1104 cam 224/224 @ .050
Edel performer rpm and 600 cfm 4 barrel
3/4 "shortie" headers and flow exhaust dumped at the axle

The reason I ask is I'm running R43TS's right now, a few of them worked loose and caused me to burn the plug wires up. I tightened them up, got new wires and now it wont start. I think I need new plugs and was going to go up to the R45TS's b/c these are really black and dark colored on the electrode. That means its too rich right? I've always ran a TS plug on the old engine, but it had 305 heads on it? Do the 882's require a different plug??

Thanks
Paul

gchemist · 09-15-2004, 12:04 AM

NGK!!! Nothing else in my trucks.

Tom · 09-15-2004, 02:37 AM

The heads take the same type of plugs as the 305 heads, I would run a 44 instead of jumping from the 43 to a 45, unless there is no R44TS.

79BIG10 · 09-15-2004, 12:05 PM

I agree NGK!!

bluex · 09-15-2004, 03:52 PM

I'm glad you guys like NGK plugs. Personally I use AC's, so if you can help me out with some numbers that would be great! I can cross them, so it dosent matter what brand, I just want to know what other people are using sucessfully.

Thanks
Paul

cliffsta · 09-15-2004, 05:47 PM

AC Delco!! Nothing beats quality Declo GM replacements!!

lol well, AC Delco are the only plugs that ever do good on ol red; my dad has tried every stinking expensive spark plug that exists, and none work as well as AC Delco. Just one of the odd nuances of Ol Red...

flip66 · 09-15-2004, 06:21 PM

I had kind of the same set up in an 88 monte carlo with 10:1 compretion had the same problem you are and the only thing that would last were AC R45TS, Accel, and the Champion truck plugs. I like AC because the were cheaper. I tried them all NGK, Bosh, split fire, even the AC rapid fire and none would last as long.

Tom · 09-15-2004, 06:47 PM

FYI, looking around at plugs at work the other day, some a/c delco's had "NGK" stamped on them

Yup, they are made by NGK.

*1972C10* · 09-15-2004, 06:55 PM

R45TS AC Delco are the only plugs i run in my vehicles and i prefer the R45 Unless your running Nitrous There plenty hot.

bigd65 · 09-16-2004, 08:56 AM

I use to be stuck on AUTOLITES and I do still like them, but last time, I put AC in my truck and its been fine, I dont think you will see much difference in plugs. I just used the ones that book callled for on my truck, I dont remember the size. If yours are showing rich, you may need to look into CARB adjustments and not the plugs.
Just my opinion

Greenlee · 09-16-2004, 09:52 AM

Quote:

Originally Posted by bigd65

I dont think you will see much difference in plugs. Just my opinion

I used to feel the same way, but after using different plugs I found that my truck seems to run better using AC Delco R45TS plugs.

09-14-2004, 04:17 PM	#1
bluex Registered User Join Date: Jun 2004 Location: Spartanburg, SC Posts: 1,963	Spark plug recomendations? Looking to see what you guys would run with this combo. .060 over 350, flat tops 4 valve reliefs, moly rings 882 heads, stock rework Summit k-1104 cam 224/224 @ .050 Edel performer rpm and 600 cfm 4 barrel 3/4 "shortie" headers and flow exhaust dumped at the axle The reason I ask is I'm running R43TS's right now, a few of them worked loose and caused me to burn the plug wires up. I tightened them up, got new wires and now it wont start. I think I need new plugs and was going to go up to the R45TS's b/c these are really black and dark colored on the electrode. That means its too rich right? I've always ran a TS plug on the old engine, but it had 305 heads on it? Do the 882's require a different plug?? Thanks Paul __________________ Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded '03 burb. Family cruiser http://upstategmtrucks.com/

09-15-2004, 12:04 AM	#2
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	NGK!!! Nothing else in my trucks. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

09-15-2004, 02:37 AM	#3
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	The heads take the same type of plugs as the 305 heads, I would run a 44 instead of jumping from the 43 to a 45, unless there is no R44TS. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

09-15-2004, 12:05 PM	#4
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	I agree NGK!! __________________ 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

09-15-2004, 03:52 PM	#5
bluex Registered User Join Date: Jun 2004 Location: Spartanburg, SC Posts: 1,963	I'm glad you guys like NGK plugs. Personally I use AC's, so if you can help me out with some numbers that would be great! I can cross them, so it dosent matter what brand, I just want to know what other people are using sucessfully. Thanks Paul __________________ Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded '03 burb. Family cruiser http://upstategmtrucks.com/

09-15-2004, 05:47 PM	#6
cliffsta Stepsides RULE Join Date: Jul 2004 Location: Pineville, LA Posts: 1,921	AC Delco!! Nothing beats quality Declo GM replacements!! lol well, AC Delco are the only plugs that ever do good on ol red; my dad has tried every stinking expensive spark plug that exists, and none work as well as AC Delco. Just one of the odd nuances of Ol Red... __________________ 1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord

09-15-2004, 06:21 PM	#7
flip66 Registered User Join Date: Jan 2004 Location: Garland TX Dallas area Posts: 658	I had kind of the same set up in an 88 monte carlo with 10:1 compretion had the same problem you are and the only thing that would last were AC R45TS, Accel, and the Champion truck plugs. I like AC because the were cheaper. I tried them all NGK, Bosh, split fire, even the AC rapid fire and none would last as long.

09-15-2004, 06:47 PM	#8
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	FYI, looking around at plugs at work the other day, some a/c delco's had "NGK" stamped on them Yup, they are made by NGK. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

09-15-2004, 06:55 PM	#9
1972C10 Account Suspended Join Date: Dec 2003 Location: Texas Posts: 2,686	R45TS AC Delco are the only plugs i run in my vehicles and i prefer the R45 Unless your running Nitrous There plenty hot.

09-16-2004, 08:56 AM	#10
bigd65 Registered User Join Date: Mar 2000 Location: Clute, TX. Posts: 1,935	I use to be stuck on AUTOLITES and I do still like them, but last time, I put AC in my truck and its been fine, I dont think you will see much difference in plugs. I just used the ones that book callled for on my truck, I dont remember the size. If yours are showing rich, you may need to look into CARB adjustments and not the plugs. Just my opinion __________________ 2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe

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