Spark plugs for vortec heads
#1
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Spark plugs for vortec heads
What spark plugs go in a 906 vortec head I want the original ones that came in the vortec heads from a 5.7 350 (1998-2000)
#2
Supreme Member
iTrader: (1)
Join Date: Dec 2006
Location: ms. gulf coast
Posts: 2,403
Likes: 0
Received 4 Likes
on
4 Posts
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Spark plugs for vortec heads
they "are" slightly longer than the ones on earlier 350's . I don't recall the number but I got AC delco's for a 3/4 ton G.M. P/U . have been fine for me . good luck ...
#3
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Spark plugs for vortec heads
Will these plugs work with shorty headers or will they cause clearance problems like rubbing on the headers ???? When u hook the wire up to it
#4
Supreme Member
iTrader: (13)
Join Date: Dec 2002
Location: Bowdon, GA.
Posts: 2,535
Likes: 0
Received 16 Likes
on
14 Posts
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Spark plugs for vortec heads
AC delco 41-942 was factory IIRC
AC delco R44LTS6 is the std vortec plug
Auto lite 605
NGK V power 3951
AC delco R44LTS6 is the std vortec plug
Auto lite 605
NGK V power 3951
#5
Supreme Member
iTrader: (1)
Join Date: Dec 2006
Location: ms. gulf coast
Posts: 2,403
Likes: 0
Received 4 Likes
on
4 Posts
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Spark plugs for vortec heads
I have hedman shorty's #68478 on my car , no problems . I also have custom made right angle (90 degree) 8.5 plug wires . good luck ...
#6
Supreme Member
iTrader: (9)
Re: Spark plugs for vortec heads
I pulled the # from a 97 truck, then had the guy at the counter bring me each of the available plugs. Champion was the shortest on the insulator side. Ive ran them for years now without burning a boot.
I can try and get the number this evening. Got the box in the garage.
I can try and get the number this evening. Got the box in the garage.
The following users liked this post:
Lwoodard44 (06-24-2022)
#7
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Spark plugs for vortec heads
Yea I wish I had hedmen shorties but the car when I bought had flowtech shorties and y pipe already on so I'm not gonna swap out a 350+ dollar exhaust just to swap to hedmen which would be about the same price but I'll buy one of the vortec plug and test fit if not I'll have to get those accel shorty plugs which I really don't wanna use
Trending Topics
#8
Member
iTrader: (1)
Join Date: Oct 2013
Location: Florida
Posts: 316
Likes: 0
Received 7 Likes
on
6 Posts
Car: 1987 Trans am
Engine: 350 Vortec Stealth Ram
Transmission: T-5
Axle/Gears: 02 SS Torsen Zexel 3.42
Re: Spark plugs for vortec heads
What flowtech headers you have? I just put a set on my vortec 350 and the plug clearance is the absolute best I've seen so far coming from 2 sets of longtube headers.
I have the autolite ap 104 plugs.
I have the autolite ap 104 plugs.
#9
Supreme Member
iTrader: (9)
Re: Spark plugs for vortec heads
Rs 14yc. Champions is the ones I'm running I think. Empty box in my camaro stuff. I'd have to google the number to make sure if the right reach. Do not waste your time with accel shorties. They don't last. Went through 2 sets before I learned
#10
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Spark plugs for vortec heads
yea the accel are the ones im using now the only reason why im using these is because I pretty sure the standard size plug will hit on the headers and burn up plug wires which I don't want to happen
#11
Supreme Member
iTrader: (9)
Re: Spark plugs for vortec heads
I understand, that's why I ran them too. I just couldn't get any life out of them. But the champion is very short as well and I haven't had any issue with burning the plug wires on my headers. I will try and get a comparison pic if I can. Im fixing to order a new set.
#12
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Spark plugs for vortec heads
I understand, that's why I ran them too. I just couldn't get any life out of them. But the champion is very short as well and I haven't had any issue with burning the plug wires on my headers. I will try and get a comparison pic if I can. Im fixing to order a new set.
#14
Supreme Member
iTrader: (10)
Join Date: Sep 2000
Location: Moorpark, CA
Posts: 2,426
Likes: 0
Received 165 Likes
on
119 Posts
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Spark plugs for vortec heads
I'm using NGK TR55's with my Vortec heads and Edelbrock headers.
#15
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Spark plugs for vortec heads
Ok everyone so I did some test fitting today and it seems like a normal lenght plug will clear just fine with the flowtech shorty headers looks like I'll be picking up a full set of vortec plugs hopefully this weekend I'll keep everyone posted on how it turns out hopefully the car will run now with these instead of those crappy accel ones
#17
Supreme Member
iTrader: (13)
Join Date: Dec 2002
Location: Bowdon, GA.
Posts: 2,535
Likes: 0
Received 16 Likes
on
14 Posts
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Spark plugs for vortec heads
Nice.. Looks like the champion might be 1/16" to 1/8" longer. Not bad at all
#18
Senior Member
Thread Starter
Join Date: May 2011
Location: New Bedford MA
Posts: 855
Likes: 0
Received 1 Like
on
1 Post
Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Spark plugs for vortec heads
Yea I installed my vortec plugs a couple of days and the car still doesn't want to run I think it's something wrong with the tuning file I'm using I don't know what else it could be
Thread
Thread Starter
Forum
Replies
Last Post
mrestrictrplate
Engine/Drivetrain/Suspension Wanted
4
12-14-2015 11:43 AM