Spark Plug decision
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Joined: Oct 2001
Posts: 134
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From: Broken Arrow, OK (Tulsa)
Car: 1990 Iroc-Z
Engine: 350 L31 Vortec
Transmission: 700R4
Spark Plug decision
What spark plugs to use with my engine combo.
L31 vortec 350
stock iron vortec heads
TPI vortec basplate
ZZ-4 cam
What part number is what i am lookin for..
maybe a ac delco or autolite plug.. not platinum is what was so far suggested.
L31 vortec 350
stock iron vortec heads
TPI vortec basplate
ZZ-4 cam
What part number is what i am lookin for..
maybe a ac delco or autolite plug.. not platinum is what was so far suggested.
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Joined: Oct 2002
Posts: 1,042
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From: Oklahoma City, OK
Car: 92 Z28
Engine: 357 TPI (L98)
Transmission: 700R4
A lot of guys will tell you to use simple AC Delco rapidfires. I don't know if that would work with your heads/headers (I don't have that kind of experience yet), but I'm assuming it would work. These are the plugs I use, as do a lot of guys, and they're just solid all around. Recommended.
As for part number, just tell them you want rapidfires for like a 90 Z28 with a 350. This is only if it will work in your heads though. Somebody else can probably tell you if it will fit or not, but I can tell you they're good plugs!
As for part number, just tell them you want rapidfires for like a 90 Z28 with a 350. This is only if it will work in your heads though. Somebody else can probably tell you if it will fit or not, but I can tell you they're good plugs!
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