Indmar 5.7L Vortec(Non-Cat) Spark Plug

ACDelco spark plug kit featuring two blue and white product boxes labeled in English and French, with a single spark plug displayed in front.
Indmar 5.7L Vortec spark plug designed for optimal performance in marine engines, ensuring reliable ignition and efficiency.
SKU: 556035

Indmar 5.7L Vortec(Non-Cat) Spark Plug

$5.35 $42.80
Save $37.45

Gap specs. Comes pre-gapped to .045, so if you have a 5.7L carb engine, you will need to adjust to the below range.

5.7 Vortec CARB- 0.030 in. (.76mm)
5.7 LT1/LTR- 0.045 in. (1.1mm)
5.7 Vortec EFI (No CAT)- 0.045 in. (1.1mm)

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This plug is specific to any Indmar small block engine with Vortec heads W(long reach plug) in a NON-CATALYZED EXHAUST. These were typically used in Malibu motors from 1998 to 2003

For spark plug wires to match, click on one of the following that matches your engine:

-5.7 Vortec Carb/5.7 Vortec EFI(Non-Cat): 756002

-5.7 LT1/LTR: 556010K

For Spark plugs for 5.7L Vortec with Cat, please click here: 491009 

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