What is the purpose of the Tri Armor coating?

The Tri Armor coating on these Clevite bearings is designed to provide a durable surface for consistent contact with the crankshaft. This helps ensure proper lubrication and reduces wear during engine operation.

When should I use H-Series bearings like these?

H-Series bearings are recommended when your engine's crankshaft has oversize fillets and is expected to run in the medium to high RPM range. The medium eccentricity and high crush design helps them seat properly in these conditions.

Does this main bearing set include all necessary components for installation?

This set includes the main bearings themselves. It's always a good idea to consult your vehicle's service manual for a complete list of recommended parts and procedures, as other seals or gaskets may be needed for a full engine rebuild.

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Trusted Since 1957

Est. 1957

Specifications

Brand: Clevite
Part #: MS1038HC10
UPC: 639789292452

Clevite Tri Armor GMC Pass & Trk 400 6.6L 1970-80 Main Bearing Set

Name: Clevite Tri Armor GMC Pass & Trk 400 6.6L 1970-80 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-tri-armor-gmc-pass-trk-400-6-6l-1970-80-main-bearing-set-t14-483866
Price: 188.20 USD
Availability: BackOrder

$188.20

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Clevite Tri Armor main bearing set for 1970-1980 GMC and Chevrolet 400ci (6.6L) engines.

Key Features

Fits 1970-1980 Chevrolet and GMC vehicles with the 400ci (6.6L) engine.
H-Series bearings offer medium eccentricity and high crush for improved seating.
Hardened steel back and thin overlay construction.
Made without flash plating for better crankshaft contact.
Designed for engines operating in the medium to high RPM range.
Features Tri Armor coating for durability.

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

These Clevite H-Series main bearings feature a medium level of eccentricity and high crush, designed to work with crankshafts that have oversize fillets. The hardened steel back and thin overlay construction, combined with the absence of flash plating, helps ensure better seating against the crankshaft. This setup is particularly beneficial for engines that operate in the medium to high RPM range.

This set is built for a wide range of classic Chevrolet and GMC trucks and passenger cars from 1970 to 1980, specifically those equipped with the 400 cubic inch (6.6L) V8 engine. You'll find these bearings commonly used in applications like the Chevrolet C10, GMC C1500, and Chevrolet Impala from those years. The Tri Armor coating offers a durable surface for consistent performance.