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Review on πŸ”§ Optimized Sierra 18-5273 Tune Up Kit for GM V-8 Engines featuring Thunderbolt IV & V HEI Ignitions by Loren Schmidt

Revainrating 1 out of 5

Not impressed with this Sierra Dist cap

firstly the cap vent was not screwed in. I had to drive the thread with a tap. Then the bolts that came with the kit went in tighter than usual, while the old Mercruiser bolts went right in. The distributor cap itself is very tight and requires screws to attach. It had very sharp edges in the cap where it fits over the distributor body. I'm just not impressed with the fit of this product. If you can buy Mercury parts from the start.

Pros
  • delivery was very quick
Cons
  • old