Engine Valve Cover Wing Nuts Steel Black Bowtie Logo 1/4-20 Thread 4 Pack Red Bowtie Chevrolet Performance Parts Pipe Plug Removal Tool and the right gauge records

and the right gauge records individual cylinder pressure - and the difference is you leakdown

put it in the vise and start testing

For Small Block and Big Block Chevy Engines

The thread-in probe can be installed directly into the water jacket of the intake manifold

Engine Valve Cover Wing Nuts Steel Black Bowtie Logo 1/4-20 Thread 4 Pack Red Bowtie Chevrolet Performance Parts Pipe Plug Removal Tool and the right gauge recordsPremium Chrome Wing Nuts. Chevrolet Bowtie Emblem is cut sharply into the top of each wing nut. The lower ends of the shafts are manufactured with wide shoulders for broad load distribution, and each wing nut is supplied with a separate stud which permits precise gasket positioning on the head prior to mounting the valve covers. Fits Chevrolet small and big block, and V6. 1 4in x 20 thread. Officially Licensed Chevrolet Performance Product. Sold as