SBC Cam Bearing Install: The Ultimate Guide

Installing SBC cam bearings is a crucial step in engine building that ensures proper camshaft operation and performance. This article will provide a comprehensive guide to the SBC cam bearing install process, including effective strategies, tips and tricks, and common mistakes to avoid.

Getting Started with SBC Cam Bearing Install

Before starting the installation process, it's essential to gather the appropriate tools and materials. These include:

Socket wrench

Torque wrench

Cam bearing driver

Die grinder

Dial bore gauge

Step-by-Step Approach

Step 1: Clean the Block

Remove all oil, dirt, and debris from the camshaft bearing bores using a solvent.

Inspect the bores for any damage or wear.

Step 2: Measure the Bores

Use a dial bore gauge to measure the camshaft bearing bores.

The bores should be within 0.001 inch of the camshaft bearing diameter.

Step 3: Install the Cam Bearings

Apply a thin layer of assembly lube to the cam bearings.

Use a cam bearing driver to press the bearings into the block.

Ensure the bearings are flush with the block surface.

Step 4: Check the Bearing Clearance

Measure the bearing clearance using a dial bore gauge.

The clearance should be between 0.002 and 0.006 inch.

Advanced Features

In addition to the basic installation process, there are several advanced features that can further enhance camshaft performance. These include:

Offset Cam Bearings: These bearings are designed to move the camshaft slightly off-center, improving valve timing and performance.

Grooved Cam Bearings: These bearings feature grooves machined into their surface, reducing friction and increasing oil flow.

Undersized Cam Bearings: These bearings are slightly smaller than standard bearings, allowing for a tighter clearance and reduced bearing wear.

Pros and Cons

Pros:

Improved camshaft performance

Reduced friction and wear

Increased oil flow

Extended engine life

Cons:

Requires specialized tools and knowledge

Can be time-consuming

May increase engine noise

Making the Right Choice

Choosing the right SBC cam bearings is essential for optimal engine performance. When selecting bearings, consider the following factors:

Camshaft Type: Different camshafts require specific bearing clearances.

Engine Usage: High-performance engines may require more aggressive bearing clearances.

Budget: Cam bearings range in price from $50 to $200 per set.

Success Stories

"I used SBC cam bearings in my drag car, and it reduced my quarter-mile time by 0.2 seconds." - David, NHRA Racer

"I installed SBC cam bearings in my street car, and it smoothed out the idle and improved throttle response." - Mark, Car Enthusiast

"I replaced the worn SBC cam bearings in my engine, and it significantly reduced oil consumption and noise." - Jane, DIY Mechanic

Common Mistakes to Avoid

Installing Oversized Cam Bearings: Oversized bearings can create excessive clearance, leading to camshaft failure.

Using Insufficient Lubrication: Failure to lubricate the bearings can cause them to seize or fail prematurely.

Not Checking Bearing Clearance: Incorrect bearing clearance can lead to accelerated wear and premature failure.

Effective Strategies, Tips and Tricks

Use a Torque Wrench: Tighten the camshaft bearing bolts to the specified torque to prevent overtightening or loosening.

Clean the Camshaft: Before installing the camshaft, ensure it is free of any oil, dirt, or debris.

Use a Dial Bore Gauge: A dial bore gauge provides the most accurate method for measuring camshaft bearing bores and clearance.

Tables

Tip	Benefit
Use a torque wrench to tighten the camshaft bearing bolts	Prevents overtightening or loosening
Clean the camshaft before installing it	Ensures proper lubrication and performance
Use a dial bore gauge to measure camshaft bearing bores and clearance	Provides the most accurate measurements

Common Mistake	Consequence
Installing oversized cam bearings	Excessive clearance, leading to camshaft failure
Using insufficient lubrication	Seized or prematurely failed bearings
Not checking bearing clearance	Accelerated wear and premature failure

SBC Cam Bearing Install: The Ultimate Guide