318 Poly Flow Test
Not really an A-Body thing, but a cool engine none the less. My first car was a 1966 Coronet 440 with a 318 poly. My father bought it new. I've had the heads in the shop for quite some time, and I finally took the time to rig up the valve opener and flow test the intake. Small ports and not much flow, but these are cool heads. Nice, centered, unobstructed intake port. Combustion chamber with canted intake valves and quench area on both sides. Short, direct exhaust port. Nice design for the 1950s.
Flow numbers are attached. Flow numbers from an iron 360 head with 1.88 valves are included for comparison. Poly has 1.84 intake valve.
Not really an A-Body thing, but a cool engine none the less. My first car was a 1966 Coronet 440 with a 318 poly. My father bought it new. I've had the heads in the shop for quite some time, and I finally took the time to rig up the valve opener and flow test the intake. Small ports and not much flow, but these are cool heads. Nice, centered, unobstructed intake port. Combustion chamber with canted intake valves and quench area on both sides. Short, direct exhaust port. Nice design for the 1950s.
Flow numbers are attached. Flow numbers from an iron 360 head with 1.88 valves are included for comparison. Poly has 1.84 intake valve.