Are you looking for big torque and horsepower numbers? AFR's 335cc Magnum big block Chevy line of medium-volume intake runners will provide you with exactly that. The phrase "having your cake and eating it too" would certainly be appropriate with their moderately sized intake runners producing tremendous flow figures across the entire lift range (AFR CNC 335 heads flow 410 cfm!). These high-flow/high-velocity ports provide extreme versatility and fill the needs of many applications. From a max-effort, high-compression 454 to a 605 c.i.d. low-rpm marine application, these aluminum cylinder heads would be a great choice. AFR Magnum heads would also be ideal in larger cubic inch Pro Street applications with their broad torque range, as well as their significant rpm and horsepower capabilities. These cylinder heads will work best with a primary operating range of 3,000-7,000 rpm (this range is an average and will vary with engine displacement, as well as component selection). The 335cc heads come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The standard combustion chamber volume for the fully CNC-ported 335cc is 121cc. They are available with an optional 114cc combustion chamber as well.
Are you looking for big torque and horsepower numbers? AFR's 335cc Magnum big block Chevy line of medium-volume intake runners will provide you with exactly that. The phrase "having your cake and eating it too" would certainly be appropriate with their moderately sized intake runners producing tremendous flow figures across the entire lift range (AFR CNC 335 heads flow 410 cfm!). These high-flow/high-velocity ports provide extreme versatility and fill the needs of many applications. From a max-effort, high-compression 454 to a 605 c.i.d. low-rpm marine application, these aluminum cylinder heads would be a great choice. AFR Magnum heads would also be ideal in larger cubic inch Pro Street applications with their broad torque range, as well as their significant rpm and horsepower capabilities. These cylinder heads will work best with a primary operating range of 3,000-7,000 rpm (this range is an average and will vary with engine displacement, as well as component selection). The 335cc heads come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The standard combustion chamber volume for the fully CNC-ported 335cc is 121cc. They are available with an optional 114cc combustion chamber as well.

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