Ford Racing M8510C351 Crank Pulley Spacer， 4 Bolt Pattern<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Fit 1980 - 2004， 302/351W/351 engines</li><li>Use with 0.917" crankshaft sprocket</li><li>Spacer is 0.875" thick</li><li>4-bolt pattern</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ECHCS22DL.jpg" noproxy>