ACCEL 8198 U-Groove Spark Plug Header Plug

Spark PlugU-Groove Spark Plug Header PlugU-Groove Spark Plug Header Plug; 14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0574S-4]; 8 Pack;SPECIFICATIONS: Assembly Method: Tapered Color: White Gap Size: 0.035 in. Hex Size: 0.625 in. Package Quantity: 8 Projected Tip: Yes Reach: 0.460 in. Resistor: Yes Thread Size: 14mm WARNING CA Proposition 65: No FEATURES: Shorty Spark Plugs For Tubular Exhaust Headers Eliminates Dimpling Headers For Added Clearance Shorter Overall Plug Length Vs. OE Style Plug Copper Core Center Electrode Projected Tip Helps Eliminate Burned Spark Plug Boots Shorty Header Spark Plug ACCEL U-groove performance spark plugs produce a larger spark for more power at high RPMs. Improves throttle response and fuel economy, less fouling. Purified alumina insulator prevents arcing. Machine rolled threads protect heads.For more than 40 years, ACCEL has been a leader in performance fuel and ignition systems, proving itself on the racetrac