Subject: Crankcase Breather Assembly (Cap)
Model and Year: 1956 Corvette and High Performance Passenger Cars
Source: Chevrolet Technical Service Bulletin
Bulletin No: DR #263
Section: VI
Date: September 28, 1956
TO: ALL CHEVROLET DEALERS
In cases where problems due to inadequate crankcase breaking is experienced on early 1956 Corvettes and High Performance Passenger Cars, the late type Crankcase Breather Assembly (Cap) should be installed.
The new Breather Assembly, with breather holes and gauze element, is the same as used in current passenger cars except that it is cadmium plated.
New Breather Assembly is now being used in production.
The early type (closed cap) is designed for reducing oil pull-over on units used for racing purposes.
PARTS DATA
| DESCRIPTION | TYPE | PART NO. |
| Crankcase Breather (Cap) | Open Breather Holes |
* 1552940 |
| Crankcase Breather (Cap) | Closed Breather Holes |
1552719 |
* Nonpublished part - must be ordered on Special Order through your Zone Parts and Accessory Department.
Article ID: 974
Created: October 25, 2014
Last Updated: October 25, 2014
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/1956-corvette-service-bulletin-crankcase-breather-assembly-cap-974.html