short spark plugs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fdbdw · 06-26-2009, 06:33 PM

#5 plug boot resting on header, looking at all options to work this one out and was wondering if anyone has opinions on short spark plugs and wich one to use, 71 c10, 350, eps man, 1406 carb, hedmans, HEI, pulling my hair out all sugestions are appreciated

bac1755 · 06-26-2009, 06:47 PM

ACCEL Shorty Plug For Headers. you can get then at any parts store, about $30. Im using a set on my truck. they seem to work really well.

fdbdw · 06-26-2009, 06:49 PM

is the gap the same

bac1755 · 06-26-2009, 06:58 PM

Quote:

Originally Posted by fdbdw

is the gap the same

Yeah same gap. I thin .045???

Quote:

Originally Posted by mbgmike

We sell them $16.00 plus 4.50 shipping for 8

number 8199

Thats a hell of alot cheaper, I know where I'll get mine now.

big_al_71 · 06-26-2009, 07:08 PM

Had similar issue and the accel shorties solved the problem

mbgmike · 06-26-2009, 06:50 PM

We sell them $16.00 plus 4.50 shipping for 8

number 8199

piecesparts · 06-26-2009, 10:05 PM

Quote:

Originally Posted by bac1755

ACCEL Shorty Plug For Headers. you can get then at any parts store, about $30. Im using a set on my truck. they seem to work really well.

AGREE

big mike71 · 06-26-2009, 09:31 PM

If you have vortec heads they won't work.

bac1755 · 06-26-2009, 09:34 PM

Quote:

Originally Posted by big mike71

If you have vortec heads they won't work.

they work on mine just fine man.

bac1755 · 06-27-2009, 06:05 PM

Quote:

Originally Posted by big mike71

If you have vortec heads they won't work.

I was wrong when I said I use them with no problem.

Did some digging on the net. plugs that work in older heads pre 1996 wont work in vortec. vortec heads need a plug with a longer reach, not shorter. A plug with a short reach will burn up the threads the plugs screw into. causing head failure.

At least this is what I have read.

bac1755 · 06-26-2009, 09:41 PM

Is there a reason they wont work? will they mess up a head or what?

big mike71 · 06-26-2009, 09:46 PM

The only ones I could find to fit mine were 15 bucks apiece, all the ones at local auto parts set to deep

bac1755 · 06-26-2009, 09:52 PM

Quote:

Originally Posted by big mike71

The only ones I could find to fit mine were 15 bucks apiece, all the ones at local auto parts set to deep

Ok got what your saying.

gcburdic · 06-27-2009, 10:29 AM

Been reading a bit on the accel shorty plugs.....lots of people say they foul out ALOT!!!....
has anyone used these?

Champion Spark Plug numbers: RV91MC and RV92YC

They are the same length, just better from what I read!!!.....

Arad68 · 06-27-2009, 11:29 AM

I am posting this at the risk of getting flamed, like I did last time.

This is a copy of a PM I got from another member concerning spark plugs.
I have used it with great success.

This site is also a source of good info.

www.sparkplugs.com

My only problems with Champion and ACCEL, were the insulators cracking during installation.

"Did you get angled or straight plugs? That is the main deciding factor.

I use Autolite 3924's based on Edelbrock recommendations. (I've always had good luck with autolite plugs, so I stick with them) If you have the angled plug heads, you'll probably have to use a shorty plug.

Here is the recommendations from edelbrock. I believe the plug seats are flat, so you should use the washers (if they are tapered seats, you don't use the washer...)

Under 9.5 to 1 Compression

Champion ---------- RC12YC / 2071
NGK --------------- FR 4 / 5155 OR BCPR5ES / 6130
Autolite ------------ 3926
Motorcraft --------- AGSFP52
Accel Shorty ------- 0416S

Up to 10.5 to 1 Compression

Champion ----------- RC9YC / 2075
Autolite -------------- 3924
NGK ----------------- FR 5 / 7373 OR BCPR7ES / 3330
Accel Shorty -------- 0414S

11 to 1 Compression

Champion ------------ C63YC / 796
NGK ------------------ R5672A-8 / 7173

12 to 1 Compression

Champion ------------- C61YC / 785
NGK ------------------- R5672A-9 / 7405 "
__________________

piecesparts · 06-27-2009, 02:56 PM

I have been running the Accel shorty plugs in my 383 stroker motor and my son's 350 motor for years. It may be true that some people have had fouling problems with their plugs, I have NOT had that happen YET. (Knock on Wood---I guess). I have put many miles on my engine and it does have a larger cam than most stock engines. So, a fouling issue would be noticeable if it happened.

57larry · 06-27-2009, 05:01 PM

I use Accel #8199 shorty header plugs

06-26-2009, 06:33 PM	#1
fdbdw Registered User Join Date: Jan 2009 Location: colorado springs Posts: 479	short spark plugs #5 plug boot resting on header, looking at all options to work this one out and was wondering if anyone has opinions on short spark plugs and wich one to use, 71 c10, 350, eps man, 1406 carb, hedmans, HEI, pulling my hair out all sugestions are appreciated

06-26-2009, 06:47 PM	#2
bac1755 Registered User Join Date: Jan 2009 Location: Denison, Texas Posts: 245	Re: short spark plugs ACCEL Shorty Plug For Headers. you can get then at any parts store, about $30. Im using a set on my truck. they seem to work really well. __________________ 1971 GMC 1972 Small Blocked DATSUN 240Z Dads old car

06-26-2009, 06:49 PM	#3
fdbdw Registered User Join Date: Jan 2009 Location: colorado springs Posts: 479	Re: short spark plugs is the gap the same

06-26-2009, 06:50 PM	#6
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: short spark plugs We sell them $16.00 plus 4.50 shipping for 8 number 8199 Last edited by mbgmike; 06-26-2009 at 06:51 PM.

06-26-2009, 09:41 PM	#11
bac1755 Registered User Join Date: Jan 2009 Location: Denison, Texas Posts: 245	Re: short spark plugs Is there a reason they wont work? will they mess up a head or what? __________________ 1971 GMC 1972 Small Blocked DATSUN 240Z Dads old car

06-26-2009, 07:08 PM	#5
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: short spark plugs Had similar issue and the accel shorties solved the problem __________________ Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild

06-26-2009, 09:31 PM	#8
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: short spark plugs If you have vortec heads they won't work.

06-26-2009, 09:46 PM	#12
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: short spark plugs The only ones I could find to fit mine were 15 bucks apiece, all the ones at local auto parts set to deep

06-27-2009, 10:29 AM	#14
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: short spark plugs Been reading a bit on the accel shorty plugs.....lots of people say they foul out ALOT!!!.... has anyone used these? Champion Spark Plug numbers: RV91MC and RV92YC They are the same length, just better from what I read!!!..... __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present Last edited by gcburdic; 06-27-2009 at 10:30 AM.

06-27-2009, 11:29 AM	#15
Arad68 Trucks N Tranzams Join Date: Dec 2002 Location: North Las Vegas, Nevada Posts: 816	Re: short spark plugs I am posting this at the risk of getting flamed, like I did last time. This is a copy of a PM I got from another member concerning spark plugs. I have used it with great success. This site is also a source of good info. www.sparkplugs.com My only problems with Champion and ACCEL, were the insulators cracking during installation. "Did you get angled or straight plugs? That is the main deciding factor. I use Autolite 3924's based on Edelbrock recommendations. (I've always had good luck with autolite plugs, so I stick with them) If you have the angled plug heads, you'll probably have to use a shorty plug. Here is the recommendations from edelbrock. I believe the plug seats are flat, so you should use the washers (if they are tapered seats, you don't use the washer...) Under 9.5 to 1 Compression Champion ---------- RC12YC / 2071 NGK --------------- FR 4 / 5155 OR BCPR5ES / 6130 Autolite ------------ 3926 Motorcraft --------- AGSFP52 Accel Shorty ------- 0416S Up to 10.5 to 1 Compression Champion ----------- RC9YC / 2075 Autolite -------------- 3924 NGK ----------------- FR 5 / 7373 OR BCPR7ES / 3330 Accel Shorty -------- 0414S 11 to 1 Compression Champion ------------ C63YC / 796 NGK ------------------ R5672A-8 / 7173 12 to 1 Compression Champion ------------- C61YC / 785 NGK ------------------- R5672A-9 / 7405 " __________________ __________________ Don '68 Chevy LB 383 TH400/GV/373 posi '56 Chevy 4WD SWB '64 Chevy short stepside '79 Trans Am 455/TH2004R/12blt/4whldisc 95 Kia (Wifes car) 2002 S-10 extended cab pickup "God punishes small sins immediately"

06-27-2009, 02:56 PM	#16
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: short spark plugs I have been running the Accel shorty plugs in my 383 stroker motor and my son's 350 motor for years. It may be true that some people have had fouling problems with their plugs, I have NOT had that happen YET. (Knock on Wood---I guess). I have put many miles on my engine and it does have a larger cam than most stock engines. So, a fouling issue would be noticeable if it happened.

06-27-2009, 05:01 PM	#17
57larry Registered User Join Date: Nov 2007 Location: Indianapolis Posts: 1,161	Re: short spark plugs I use Accel #8199 shorty header plugs



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.