Material and craftsmanship are very good. Headers fit very well except for the passenger side o2 bung is positioned so that it interferes with an aftermarket servo cover on a 4l60E.
Fit perfectly with my 5.3/NV4500/np208 1983 k20
Nice thick flanges, plenty of clearance
Highly recommended installed on a 1984 C10 I run a 5.3 with a TH400 only thing I had to do was cut a ear off my transmission just as the instructions on the web said so I like them
These headers look great, but you cant run them with a manual transmission they hit the clutch linkage. Went with the short/huggers instead. Great product regardless.
They fit perfect on my 78 C10 gen 3 5.3/60e swap. My engine mounts are cheapo slotted adjustable ones from Amazon (for fit reference). They fit in the all the way forward and aft positions. They are actually stainless and are uncoated polished so they'll change colors after a few heat cycles (mine are a light gold color now). They came with bolts also! I would definitely recommend them!