ARP 1343609 Sb Chevy Ls1 Rod Bolt<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>MPORTANT NOTE: MUST HAVE 2 different length primary head bolts plus a third smaller bolt.</li><li>There is a Mid-Year split on the head bolts， If you have ALL SAME Size head bolts this kit is NOT for YOU， see part 134-3610.</li><li>DO NOT BUY THIS KIT until you have pulled the head and verified the size.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41xZqI8rEXL.jpg" noproxy>