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Engine Build Afr Heads

Engine Build Afr Heads

Big-Block Chevy Engine Build - 707 HP For $6,720
The AFR heads we chose are the smallest rectangle-port heads AFR sells at 305 cc, which we chose to increase the inlet velocity through the ports. The heads come with 2.25/1.88-inch valves and 118cc combustion chambers. What was especially attractive was that the 305's exhaust-flow numbers compared well with most other Rat heads we investigated. View Related Article
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