Review on Enhance Performance with Sierra International 18-5274 Tune Up Kit for Mercury Thunderbolt HEI V-6 (Display Package) by Mark Lowery

Name: Enhance Performance with Sierra International 18-5274 Tune Up Kit for Mercury Thunderbolt HEI V-6 (Display Package)
Item: Enhance Performance with Sierra International 18-5274 Tune Up Kit for Mercury Thunderbolt HEI V-6 (Display Package)
Rating: 2

September 02, 2022

The rotor fitted and works well, but the protective cover didn't work.

The rotor fits and works well but the spacer cap does not fit and the pinch bolts have very thin grooves. You will need a very thin screwdriver for installation. I reused my old cap and threw this one away!

Pros