Pirate Mfg Hot Rod SB Chevy Chrome Valve Cover Hold Down Spreader Bars SBC 283-400 Brand New Chrome Steel 8 Pc Valve Cover Spreader Bar Kit Designed to add strength to your valve cover and stop those pesky oil leaks This kit includes (8) 4-3/4" long Chrome Spreader Bars Fits all Small Block Chevy motors 1955-1986 283 305 307 327 350 400 Engines