* This product is part of the HolleyDays Promotion, 10% has been taken off of the normal price and the promotion price is shown above. This price is valid until December 29th. *
DescriptionU-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;
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.
Features & Benefits
- 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
Specifications:
Color: |
White |
Hex Size: |
0.625 in. |
Package Quantity: |
8 |
Part Type: |
Spark Plug |
Thread Size: |
14mm |