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Derrick Villarreal photo
United Kingdom, Belfast
1 Level
678 Review
55 Karma

Review on High-Quality JEM&JULES Spark Plug Wire Set for Mercruiser V8 Thunderbolt or Delco EST - Replaces 84-816608Q61 by Derrick Villarreal

Revainrating 4 out of 5

Barely fits my 350 V8

The third longest wire barely reaches the third longest spark plug. I arranged them lengthwise to stretch from furthest distance to shortest. Although they are said to fit 7.4 liter engines I don't think all the cables will fit. The materials used look good and my engine ran without any problems. The 2nd wire only had a little slack while the others had a lot of slack.

Pros
  • Spares
Cons
  • Not bad