A true long tube is what lets an LS actually make the power it is capable of, and in a Tri-Five the hard part is getting one past the steering box. These are routed for 605, Borgeson and factory setups, in 1-7/8 in. primaries into 3 in. collectors, mandrel bent from 18 gauge 304 stainless so they will not rust out from the inside.

Hooker BH14365 BlackHeart LS Swap Long Tube Header Features:

• Fits 1955-1957 Chevrolet with a GM LS engine swap.
• True long tube design with 1-7/8 in. primary tubes and 3 in. collectors.
• Mandrel-bent 18 gauge 304 stainless steel construction.
• Works with 605, Borgeson and factory steering setups, and fits CPP mounts.
• Thick plate steel flanges seal at the cylinder heads.
• Clears OEM air conditioning, manual and power steering boxes and power brake boosters.
• Compatible with GM TH350, TH400, 700R4, 2004R, 4L60-4L70, 4L80E, 4L85E, 8L90, 10L80, 10L90, 6L80 and 6L90 automatics, and Tremec T56, TKX and T56 Magnum manuals.
• Will not work with factory column shift linkage or Z bar; an aftermarket column linkage or cable kit is required to keep column shift.
• Requires removal of the factory bell housing style rear engine mounts from the frame rails.
• Natural finish, sold as a pair.