Up for sale is our aluminized 1968-69 427 big block C3 Headpipes for side exhaust with all the right bends in all the right places! These are nice upgrade from the OEM style of a 2.5″ collector and then immediately necked down to 2″ all the way to the muffler. These are a full 2.5″ all the way and are designed for direct oem replacements on the figure 8 mufflers and using top of the line materials and hand crafted all the way. We use our CNC tube bender to deliver a perfect fitting headpipe over and over again. These headpipes include new GM 3 bolt correct flanges and new donut gaskets. They are 2.5″ OD and flared correctly with an insert to hold the gasket and fit right. There is a huge difference on only the drivers side headpipe between the 427 and 454 and you are bidding on the 427 headpipes. The passenger side does not change from 68-82.
Drivers side Manifold Casting number for 427 should be #3880827
15 LBS