bonz

This my be a dumb question but would the spark plugs for vortec heads be different than what are used on stock L98 heads. I didnt think about maybe needing different plugs until today.

THANKS

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Mods. GMPP Vortec heads, Comp Cams XR269HR, Crane Gold Rockers, Hooker headers, SDPC intake manifold, free flow exhaust, Air Foil, De-screened MAF, TB Bypass, K&N filter, MSD Coil. To be installed, Edelbrock runners, BBK AFPR, SFC.

Kevin91Z

iTrader: (1)

Yes they are different; the Vortec heads use longer plugs. You should get plugs for a 1996-1998 350 Chevy truck, as they came with the Vortec heads.

bonz

THANKS for the help. Could it cause damage or performance loss by using the other plugs. Either way tomrrow I will get the right ones but was just wondering. THANKS again.
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Mods. GMPP Vortec heads, Comp Cams XR269HR, Crane Gold Rockers, Hooker headers, SDPC intake manifold, free flow exhaust, Air Foil, De-screened MAF, TB Bypass, K&N filter, MSD Coil. To be installed, Edelbrock runners, BBK AFPR, SFC.

3.8TransAM

Mr43 off the top of my head, think thats right.

All the truck plugs are platinum and last I checked (multiple yrs ago) they didnt have a non plat equivelant in delco(sure thats changed)

I know they are extended reach plugs(long snout) and the MR was marine plug all the vortec crate engines use.

later
Jeremy

rik89gta

I was kinda wondering the same thing. Because my L98 plugs thread nowhere near towards the combustion chamber on my Vortec heads. I've heard that a specific Ac Delco plug will actually work. I don't remember the part number though. Maybe someone could enlighten the community.....

rgarcia63

NGK TR5

3.8TransAM

If u actually search I've posted the exact plug a couple times.

I'm not at home with the car(at school), so do some searching under my name and you should find the delco number.

later
Jeremy

bonz

I got the plugs today and will get them in and hopefully have it going by this weekend. I was told they are gapped at .60 and thats what is recommended. I have a MSD coil so that should help out with that big of a gap but just that that was a lot. Is that right. I didnt plan on spending $7 a plug but hopefully it helps out.

THANKS AGAIN
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Mods. GMPP Vortec heads, Comp Cams XR269HR, Crane Gold Rockers, Hooker headers, SDPC intake manifold, free flow exhaust, Air Foil, De-screened MAF, TB Bypass, K&N filter, MSD Coil. To be installed, Edelbrock runners, BBK AFPR, SFC.