ARP 100-1203 Header Bolt & Stud Kit for CHEVROLET Small Block. 0.750? UHL. drilled ymm_9 With a specially developed and

With a specially developed and tuned sound

AEM Lifetime Limited Warranty

S-BM/T/17H and E-BM/SS/8 must be ordered for cars without otto / gasoline particulate filter

It’s an inexpensive insurance policy to protect your high performance engine regardless of the brand of water/methanol injection system you are using

the Pro Series Wave-Loc bolts are designed to deliver maximum reliability under extreme loads and high engine speeds

ARP 100-1203 Header Bolt & Stud Kit for CHEVROLET Small Block. 0.750? UHL. drilled ymm_9 With a specially developed andSpecifications Socket Size(s) 3 8 12pt UHL (Qty: 12) 0. 750 Thread Size 3 8 washers included