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Lifetime Member
Send PMLanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 2191
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
i know this is going to be basically a personnal choice but what is the
best brand of plug to put in a 75- 350? right now PO had autolites put
in. i myself have never had luck with champions although that was years
ago. is there a brand that is used that generally has good performance?
thanks for any input
LIFETIME MEMBER #97
THE DYNAMIC DUO
THE DYNAMIC DUO
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I'm assuming the engine is still stock.
I would try out the AC Delco Rapid Fire plugs P/N- AC 10.
That would be a direct replacement for the AC Delco R44TX spark plug.
I've had good luck with these plugs.
And that's my .02 cents.
GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
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Lifetime Member
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Send PMModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22720
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
I'm partial to AC plugs, myself. Been working just fine in all my GM products for many years.
Autolite plugs are good for certain high rpm situations, but not as good as AC stuff for every day driving. My .02
Autolite plugs are good for certain high rpm situations, but not as good as AC stuff for every day driving. My .02
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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R
I always use A.C.s in all my vehicles,your engine was designed to run with them,
C3VR Lifetime Member #93
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Send PMWillow Grove, PA - USA
Joined: 10/27/2006
Posts: 232
Vette(s): 1974 Stingray Coupe LS4 454 Dark Brown Metallic with Deluxe Saddle interior
Keep your GM car all GM
If Chuck Yeager uses them, thats good enough for me!
AC Delco!
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Ditto on Delco.
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e
Lifetime Member
Send PMLanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 2191
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
guess my personnal choice is going to be the ac's. as it is unanimous, i guess there isn't a better choice. thanks
LIFETIME MEMBER #97
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L
Sorry guys I run Champions in everything. Never had any problems at all. I had a 400 small block I'm my 71 Camaro it turned 7500 RPM on the street never skipped a beat. In my motorcycle turns 10,500 Red line on Champion Plugs. All tho in the spring I plan to try E3 Spark Plugs in the Vette and see how they work, if they don't work out I'll go back to Champions
Dave
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in Forum: C3 Engines, Driveline and Handling
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