BRAND NEW.
Increased strength head studs (CPR Performance). Designed for extreme racing engines.
Pack of 4pcs - full set
If you're having head gasket issues due to increased compression on your GX390 or clone or Predator 420cc, this is what you need.
FITS: GX390 and Predator 440
Lubricate all studs before fitment using engine oil or WD40. Install nuts & washers, torque to 20ft lbs.
New.
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