Wheels 2021 Category Banner
  See all Engine products

Clevite .025mm H Series Main Bearing Set - Triarmor Coated Chevrolet Pass|Truck 1967-1994



Model #MS909HK1

Help me decide

Shopper Award

Look inside most winning Indy cars and NASCAR vehicles and you'll find Clevite engine bearings. Since the development of the first precision insert-type bearing in 1929, Clevite bearings set the pace for engineering quality, and today they exceed industry standards for strength and durability. Most Clevite performance bearings use a special TriMetal design, first developed 50 years ago and perfected over time. A copper-lead alloy is added to a steel back, which is then electroplated with a white metal surface layer which produces an ideal degree of conformability, embedability, slipperiness, and fatigue resistance. Summit Racing also has other Clevite engine components like pistons, rings, and cam lifters, all manufactured to the same high.

Clevite coated H-Series main bearings were developed primarily for NASCAR racing, but are also well-suited to other types of competition engines. They are especially good for engines that run at medium-to-high revs. They have steel backings with carefully selected overlays and a high crush factor, plus a medium level of eccentricity. These H-Series bearings feature Clevite's exclusive TriArmor coating, the industry's only moly/graphite treatment. The sophisticated blend, in a low-friction PTFE polymer base, offers extraordinary protection and lubricity. Clevite's H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating. They're also available with either 180 degree or 360 degree oil grooves, as well as an extra 0.001 in. of clearance.

Sold as a set of 5


  • Chevrolet Pass & Trk 262 267 302 305 307 327 350 V8 1967-1994
  • Picture are for representation only. Actual product may vary

Other Part Numbers:
Clevite #cleMS909HK1

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm