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Main >> Cylinder Heads
>> Pro Topline
>> Lightning
>> Steel >> Big Block
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No Longer Available.
All Pro Topline
parts have been discontinued.
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| The World's
Most Powerful 24° Cylinder Heads |
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Steel/Iron Lightning - Big Block
Raised Exhaust Port
Rolled Over Valve Angles
119cc Intake Runner
Open Chamber/Heart Shaped
24
degree Intake Valve Angle (related to piston)
5
degree Exhaust Valve Angle (related to piston)
Use
conventional valve train components
Valves 11/32 seconds .100 long |
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Our Pro-Topline Heads
flow more than original GM rectangular port heads FULLY
PORTED! They also outflow World and Edelbrock heads right out of the box!
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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 |
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| 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. |
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| Kit # |
Description |
| 1 |
with Hydraulic springs, 1.440"
Dual,
120#@1.900" to .600 |
| 2 |
with Mechanical springs, 1.440",
145#@1.900" to .600 |
| 3 |
with Roller springs, 1.550" Dual w/dampner,
240#@2.00" to .750 |
| 4 |
with Roller springs, 1.625" Dual w/dampner,
240#@2.00" to .780 |
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| Big Block Chevy - Cast Iron 24°/26° |
| Part # |
Valve
Size |
Description |
Bare/
Pair |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 224-19000-320 |
2.250-1.88 |
Pro 24°
119cc chamber-as cast-320cc |
$1049 |
$1465 |
$1439 |
$1709 |
$1839 |
| 224-19000-360 |
2.300-1.88 |
Pro 24°
119cc chamber-as cast-360cc |
$1049 |
$1465 |
$1439 |
$1709 |
$1839 |
| 226-19000-502 |
stock 502 crate motor sizes, 2.19
intake x 1.88 exhaust. |
Pro 26°
119cc chamber-as cast-290cc |
$839 |
n/a |
n/a |
n/a |
n/a |
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Flatlander Racing ©2002
24 Elm Street, Plaistow, NH 03865
(ph) 603-378-0090, (fax) 603-382-7508, (email) tech@flatlanderracing.com
www.flatlanderracing.com
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