Description
SPARK PLUGS 235 L6 3.8
Center electrode core material: Copper
Tip material: Nickel alloy
Ground electrode: Standard nickel-chrome
Heat range: 3 (a fairly cold plug)
Reach (thread length): 0.372 in (9.398 mm)
Thread diameter: 14 mm (0.551 in)
Insulator height: 2.324 in (59.03 mm)
Pre‑gap: 0.034 in (0.86 mm)
Hex size: 13/16 i
Copper‑core enhances heat transfer and resists low-speed carbon fouling
Hot‑tip insulator provides quicker heating for reliable ignition
Nickel‑chrome alloy tip resists spark erosion and chamber corrosion
Resistor built in to help suppress ignition noise
Vehicle Applications
According to Newparts, the R43 is compatible with various classic GM V8 models from around 1970 that use the 5.7 L (350 cu in) engine:
Chevrolet Blazer 5.7 V8 (1970)
Chevrolet C10 Pickup 5.7 V8 (1970)
Chevrolet C20 Pickup 5.7 V8 (1970)
Chevrolet El Camino 5.7 V8 (1970)
Chevrolet K10 Pickup 5.7 V8 (1970)
GMC C15/C1500 Pickup 5.7 V8 (1970)
GMC K15/K1500 Pickup 5.7 V8 (1970)
GMC Jimmy 5.7 V8 (1970)
GMC C25/C2500 Pickup 5.7 V8 (1970)
GMC K25/K2500 Pickup 5.7 V8 (1970)
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