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MICHIGAN 77 CB758P30 Connecting Rod Bearing Undersize Pontiac - 0.030 V8

Part of: MICHIGAN 77 Connecting Rod Bearing Undersize

Other options in this family: MICHIGAN 77 CB527P20 MICHIGAN 77 CB527P10 MICHIGAN 77 CB831P10 MICHIGAN 77 CB758P20 MICHIGAN 77 CB481P20

Manufacturer

Picture for manufacturer MICHIGAN 77

Part Number

CB758P30
5 reviews
Sale Price

$14.15

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The MICHIGAN 77 CB758P30 is a high-quality connecting rod bearing designed for Pontiac V8 engines from 1956-1979. This bearing features a -0.030" undersize specification for use with reground crankshafts, making it ideal for engine rebuilds and restoration projects.

Tri-Metal Construction:

  • Steel backing provides exceptional strength and durability
  • Intermediate copper-lead alloy layer offers superior load capacity
  • Electroplated lead-tin-copper overlay (babbitt) delivers critical surface characteristics including excellent conformability and low friction
  • Tri-metal design exceeds many OEM bearing specifications

P-Series Features:

  • Engineered for high-revving engines where rod bore distortion occurs at elevated RPM
  • Higher eccentricity and crush factor compensate for bore narrowing under load
  • Hardened steel backing with extra-thin overlay for durability
  • Suitable for heavy-duty, motorsports, and street performance applications

Technical Specifications:

  • Standard shaft diameter: 2.3982" - 2.3992"
  • Bearing O.D. (housing bore): 2.5246" - 2.5256"
  • Recommended oil clearance: 0.0014" - 0.0044"
  • Undersize: -0.030" (for crankshaft journals ground 0.030" under standard size)

Applications: Compatible with Pontiac V8 engines including 316, 326, 347, 350, 370, 389, 400, 403, 421, 428, and 455 cubic inch displacements. Fits popular models such as GTO, Firebird, Trans Am, Grand Prix, Bonneville, Catalina, Tempest, and LeMans from 1956-1979.

MICHIGAN 77 bearings (now manufactured by Clevite MAHLE) represent over 100 years of bearing engineering excellence. These P-Series bearings are the most versatile replacement option, suitable for both OEM applications and upgraded performance builds. The tri-metal construction provides a significant upgrade path from standard bi-metal bearings.

Note: Sold individually (one bearing half). Eight bearings required per V8 engine for a complete connecting rod bearing set.

A+shipping was quick, communications were quick

Best prices online! Ordered a JBA performance exhaust and Airaid intake system for my 06 F-150. Was hesitant at first because I never heard of them but ordering was a breeze and saved me over $100 total for two items compared to anywhere else. Had package at my door in about 24 hours and even selected normal UPS ground shipping. Very satisfied and will definitely return!

Autoplicity was plenty cheaper than competitors for the springs I needed. I was shopping around and left the website after beginning a transaction and they sent me a coupon for 25% off shipping if I would return and purchase from them, which was cool. Unfortunately the coupon code didn't change the price and I didn't receive 25% off, but it was still cheaper than others.

Fast

Great selection and easy checkout! The only thing is I didnt get an email confirmation as soon as I order which made me wonder is the transaction went through. I did get an email once the items were shipped though.

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