5.0 Aluminum Cylinder Head Spark Plugs AUTOLITE 3924

AUTOLITE 3924 Small Block Ford Aluminum Cylinder Head Copper Core Spark Plug Set

These are the correct plugs for most aftermarket aluminum cylinder head applications (Edelbrock,TFS,AFR,etc.)

Includes seat crush washer

Guaranteed to deliver quick starts, good fuel economy and smooth acceleration.

Autolite Copper Core plugs are the industry standard

Multi-rib insulator reduces danger of "flash-over"

One-piece terminal post adds strength

Resistor reduces radio frequency interference (RFI) and electrode erosion

Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)

Cold-formed steel shell precision rolled threads

Full copper core electrode provides better performance in all conditions

Great for street, strip and road race

List $ 30.16

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