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![SPW300-NS-421 Super Mag Non-Sleeved Spark Plug Wire Set for Small Block Chevy, Over Valve Cover [Straight Plug Boot]](https://www.jegs.com/images/mini_750/400/491/491-300ns421.jpg)
Vehicle Info NeededSCOTT PERFORMANCE WIREPART NUMBER: 491-300NS421
SPW300-NS-421 Super Mag Non-Sleeved Spark Plug Wire Set for Small Block Chevy, Over Valve Cover [Straight Plug Boot]
$7964
Ships on 09/14/2026
Lowest Price GuaranteeSmall Block Chevy
Super Mag Non-Sleeved Spark Plug Wire SetSmall Block Chevy Over Valve Cover 300 Ohm 8.5 mm Straight Plug Boot 90-Degree Cap Coil Boot/HEI 24 in. Coil Wire
Scott Performance Wire SPW300-NS-421 Features:
- Robust .065 in. conductor with 125 tpi of .006 copper alloy wire
- 8.5 mm suppression core to effectively manage EMI/RFI noise
- 300 Ohms resistance to ensure consistent performance
- Engineered, hand-built, and hand-tested in the USA
High-Temperature Non-Sleeved Sleeved Spark Plug Wires
Scott Performance Non-Sleeved SPW300 Spark Plug Wires are engineered, hand-built, and hand-tested for unparalleled quality. Choose between different sleeving options and multiple colors.
Part TypeSpark Plug Wire
Product LineScott Performance Non-Sleeved SPW300 Spark Plug Wires
BrandSCOTT PERFORMANCE WIRE
Package Height3.0
Package Width9.0
Package Length12.0
Weight2.8 PG
Part CategoryPerformance Parts
Part FitmentDirect Fit
Vendor Part NumberSPW300-NS-421
Package Qty1
Package TypeEA
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