Yes. But it also fits 273, 318, 340, 360, 3.9, 5.2, 5.9 and any Poly that uses the same timing chain cover. All these engines have a longer timing chain.

Years ago there was a video where someone put a camera in the fuel pump hole. You could see the new timing chain dancing real bad. Those harmonics were also shown at the timing mark.

Put the mag pickup of your timing light on the coil wire and watch the timing marks dance around. My harmonic balancer has marks every 90 degrees and you can see the distortion effect.
Install this tensioner and rock steady timing marks.