Doug's 453 headers; big bars?

If you have 74 Spool-mount K-Frame... Should be ok. I have a /6 k-frame with schumauker conversion mounts .890 bars. Lots of room. Also your K- frame placed the engine higher and to the rear, my guess is you should be ok. I like the Dougs Headers except the #8 tube is to close to inner for my liking. I had them coated by a local coater, more bang for the buck.. Better coating for the thickness applied, inside and out for $325.00

Just my .02 cents.