DOUBLE-HUMP SECOND WIND
Trick Flow offers new “Double-Hump” DHC 175 head castings in aluminum for the small-block Chevy. Talk about having it all? Born out of an impulsive idea from Trick Flow’s Mike Downs, he envisioned re-creating the ultimate small-block Chevy factory iron head in aluminum. Mike said they started reworking an existing head then decided to begin with a new casting in an effort to make it an even better head in A356-T61 aluminum.
Retail is less than $800 per head, which is less than it would cost you to buy and refurbish an existing set of iron Double-Humps. What’s more, you get a better head in the process with ductile iron valve seats, new stainless steel valves, better flow, and petite 60cc chambers. Less weight. More compression. Greater heat transfer. A better head.
Trick Flow announces new “Double-Hump” DHC 175 head castings in A356-T61 aluminum for the small-block Chevy. The legendary “Double-Hump” iron head has been reborn at Trick Flow with some nice refinements that make it a better head than those dated factory castings.
Keeping with the original vintage casting, these heads are available with or without accessory bolt holes. Inside, you get 60cc CNC-profiled combustion chambers with blended bowl machining under the valves and small crosssection intake runners to promote low-rpm torque increases and boost high-rpm horsepower.