Which Spark Plugs To Use On Tfs 170 Heads?

BKM48198 · Mar 19, 2016

What are the best plugs to use when going to a set of aluminum TFS Twisted Wedge heads? I know there was a difference from stock heads and gt40 heads and now I'm going to a set of TFS 170's and want to know which plugs work best with them on a stock bottom end.

Grn92LX · Mar 19, 2016

autolite 3924's

chizler · Mar 19, 2016

+1 on the autolites, thats what im running in mine.

90sickfox · Mar 19, 2016

+2 autolite 3924's

mikestang63 · Mar 19, 2016

put antiieze on any plug going into an aluminum head

BKM48198 · Mar 19, 2016

Looking at them I see a few different Autolite 3924's....

Autolite Racing Copper Core Non-Resistor Spark Plug
Part No: AR3924

Autolite Copper Core Resistor Spark Plug
Part No: 3924

Autolite Double Platinum Spark Plug
Part No: APP3924
and

Hover over the image to zoom in

Autolite XS3924DP Xtreme Sport Spark Plug

Part No. XS3924DP
So which one of these ?

mikestang63 · Mar 19, 2016

plain copper 3924

90sickfox · Mar 19, 2016

Plain copper cheapie 3924s here, too. Our cars don't like platinums, iridium's, or any of that other crap.

BKM48198 · Mar 20, 2016

Thanks ..........I'll go get a set and hopefully if I can take a little vacation time this week I will pull the engine apart and swap out the cam and heads for my Easter present. LOL

Which Spark Plugs To Use On Tfs 170 Heads?

BKM48198

Grn92LX

Fidanza Man!

chizler

Active Member

90sickfox

Wasn't a pretty sight...and I've got big hands

mikestang63

BKM48198

mikestang63

90sickfox

Wasn't a pretty sight...and I've got big hands

BKM48198

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Which Spark Plugs To Use On Tfs 170 Heads?

Fidanza Man!

Active Member

Wasn't a pretty sight...and I've got big hands

Wasn't a pretty sight...and I've got big hands

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