Used 1-7/8 w2 Race headers from tti exhaust.
3.5" collectors
HEADER NO. 340W2-17835
• Applications: 67-76 A-body, 62-79 B-body, 70-74 E-body, 76-80 F-body, 77-88 M-body
• A/LA-Engines: 340, 360, 402 crate, 408 Magnum crate, 440 Super commando crate
• Cylinder Heads: W2 Race P4532693...