Product Description
Vacuum Advance Fits 6 Cylinder Applications Natural Finish If your 1939-1952 Chevy just doesn't get the performance you expect from your original 6 cylinder engine maybe the vacuum advance is bad! The original vacuum advance has a rubber internal diaphragm that can dry rot and crack after 50 plus years of use. A defective vacuum advance will prevent the timing from advancing properly and will cause sluggish throttle response. Pep up your classic's performance with one of our new vacuum advances. Our vacuum advance fits 1939-1952 Chevrolet with 6 cylinder engines.
