Main >> Cylinder Heads >> Pro Topline >> Marine >> Big Block

 
 
Marine Chevy BB Cast Iron Cylinder Heads
Makes 28 HP over WORLD heads!

 
Iron ProTorker Chevy Cylinder Head
  • Raised Exhaust Port
  • Rolled Over Valve Angles
  • 119cc Intake Runner
  • Open Chamber/Heart Shaped
  • Use conventional Valve Train Components
 
Flatlander Flow Figures for the 320 Heads
(right out of the box!)
Lift Flow Intake Flow Exhaust
400 Lift 242I 202E
600 Lift 339I 234E
700 Lift 354I 240E
 These heads outflow World and Edelbrock heads right out of the box!
Create some THUNDER at the drag strip with Pro Topline's Pro Lightning 23° cylinder heads for Big Block Chevy. Choose between Cast Iron or Aluminum - either way you still get the increased flow of multi-angle intake and radiused exhaust valve seats. In fact, Pro Topline says the  23° heads out flowed similar aluminum and cast iron heads on the market by 5% for a BIG improvement in low-end torque and top-end horsepower. Lightning heads also feature an improved water jacket design, which increases flow around the plugs for improved combustion, angles plug locations, and a three angle valve job. Best of all, they accept conventional piston and valve train components for easy bolt-on power. Available as bare castings or complete assemblies.

 
Kit 1  
Designed for Hydraulic Cams, this kit includes 1.550 double silicone springs, 135 lbs on the seat, Chrome Moly Retainers and hardened machined Locks, Manley Severe Duty Intakes and Inconel Exhaust Valves that will take any type of punishment you give it! 650 max lift.

Kit 2
Designed for Solid Cams and Rollers, this kit includes 1.550 double silicone springs, 170 lbs on the seat, Chrome Moly Retainers and hardened machined Locks, Manley Severe Duty Intakes and Inconel Exhaust Valves that will take any type of punishment you give it! 700 max lift
**.

 
Part # Description Int. Valve/
Exh. Valve
Price/Pair
Bare
Kit 1
Assembled
Kit 2
Assembled
224-19000-320 Cast Iron, 320cc, Bare 2.25"/1.88" $899 $1679 $1669
224-19000-360 Cast Iron, 360cc, Bare 2.30"/1.88" $899 $1699 $1699
124-19000-320 Aluminum, 320cc, Bare 2.25"/1.88" $1169 $1959 $1999
124-19000-360 Aluminum, 360cc, Bare 2.30"/1.88" $1169 $1979 $2020
** For more than 700 lift special springs and Titanium Retainers are needed... add $499
With the purchase of Heads, you can purchase ARP 12 point Performance Head Bolts for only $49!
 
 
 

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