Chevy “Double Hump” Cylinder Heads

Chevy Double Hump Fuelie Heads

The data on this page is for information only. We no longer supply or work on double hump heads. 

The “double hump” or “fuelie” heads have been around since the 1960’s. They are still used in a variety of applications. We have a good supply of used ‘186 & ‘492 heads available with everything from “Undercover Porting” to CNC Sportsman Porting.

Stock “double hump” heads flow 202 cfm intake and 141 cfm on the exhaust. If you must maintain a stock looking port, consider our “Undercover Porting”. With our “Undercover Ported” they will flow 220-230 cfm intake and 165 cfm exhaust. This flow improvement will add 15 to 25 horsepower to your engine.

 

The data on this page is for information only. We no longer supply or work on double hump heads.   

 

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