You are buying ARP 235-2503 Harmonic (balancer)Damper Bolt kit for Chevrolet Big Block. Chevrolet Big Block. - Set of 1 Bolt & 1 Washer & Lube. -Tread Size:1/2-20.
ARP 134-2501 Damper Harmonic Balancer Bolt for Chevy Small Block 305 327 350 400
ARP 135-2501 Chevy Big Block 396 402 427 454 Damper / Harmonic Balancer Bolt
ARP 234-2503 Harmonic Damper Balancer Bolt Kit Chevy LS1 LS2 LS3 LS6 Gen III
ARP 135-2501 Damper Harmonic Balancer Bolt Kit Chevy Big Block 396 427 454 502
ARP 156-2501 Damper Harmonic Balancer Bolt Kit 12 pt Ford 4.6L Modular Mustang
