ACCEL - 14mm Thread, .750 in Reach - Gasket (flat) Seat - ISO Standard - 4 Pack 2A/5 - Double Layer -

2A/5 - Double Layer - Aramid / Nomex - Black / Red - 2X-Large/3X-Large - Each

Fitting - Adapter - Straight - 3 AN Female Swivel to 1/8 in NPT Male - Aluminum - Blue Anodized - Each

557 in - Duration 270 / 286 - 112 LSA - 1600 / 5800 RPM - Big Block Ford - Each

75 in Deep - Oil Pre-Heaters Included - Steel - Black Powder Coat - Big Block Chevy - Kit

Comes in pairs

ACCEL - 14mm Thread, .750 in Reach - Gasket (flat) Seat - ISO Standard - 4 Pack 2A/5 - Double Layer -ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost