FREE SHIPPING & HANDLING!*
Order by 11 PM EST
for Same Day Shipping!
B&B Blow-By Gauge
Product images may differ from actual product appearance.
Measure while engine is running B&B's Blow-By Meter is the only effective way to measure piston ring sealing with the engine running. Blow-by is the pressure that builds up inside the engine crankcase and escapes though the breather valve cover. That is actually combustion gases that get out down the cylinder walls past the piston rings. Obviously, the more blow-by that comes out of the valve covers, the more problems that exist with the rings. This easy to read meter can be handheld to check the blow-by while the engines is in a car, boat, ect., or mounted directly in a dyno cell.
Over 50 years of experience delivering the best in High Performance Auto parts. JEGS has the knowledge and technical support staff along with 100% satisfaction guarantee. Our warehouse is filled with millions of name brand parts ready for same day shipping.
What You Want - When You Want It - At the Price You Want to Pay