ARP Stainless Steel Header Bolt Kit - Drilled - SB Chevy - 3/8" Diameter, .750" Under Head Length - Hex Head - (12 Pack) 1034903 Includes storage pouch

Includes storage pouch

1969-1971 Pontiac Acadian

no need to modify the filler neck

we spared no expense to give you the best intake on the market

(2) ORB-08 Ports

ARP Stainless Steel Header Bolt Kit - Drilled - SB Chevy - 3/8" Diameter, .750" Under Head Length - Hex Head - (12 Pack) 1034903 Includes storage pouchChoose from ARP Black Oxide or 300 stainless steel in hex or 12 pt. Heads. The 300 stainless material is not affected by extreme heat, eliminating the possibilty of retempering due to exhaust temperature cycles. Rated 170, 000 psi tensile strength. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Header Bolt 3 8 16 in Thread 0. 75 in Long Hex Head Stainless Polished Drilled Small Block