help leakdown tester build

[Russell45]

Gonna build a leakdown tester as described in Phragle's post. Anybody know the size of the pvc fitting that will work for the intake manifold? How about the size of a plumber's plug to fit the exhaust manifold? I could measure easily, but my new blasters are a 3 hour drive from home right now. Thanks in advance.

 

[bummer981]

The outside diameter of mine is 4 1/4 inches for a stock carb.

 

[sporty982000]

the pvc cap you need is 1 1/2. for about $59 cents

you drill a whole in it, and use any fitting, that will match up with your air line.