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Main >> Cylinder Heads
>> Pro Topline
>> Lightning
>> Steel >> Small Block |
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No Longer Available.
All Pro Topline
parts have been discontinued.
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| Pro
Topline: The World's
Most Powerful 23° Cylinder Heads |
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Steel/Iron
Lightning - Small Block
Outstanding
Airflow
Bronze Valve
Guides
All Valves are
+.100 Long
Center &
Perimeter Bolt on Valve Covers Accepted |
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| Create some THUNDER
at the drag strip with Pro Topline's Pro Lightning 23° cylinder heads
for small 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, 1.460" Single w/dampner,
110#@1.800" to .550 |
| 2 |
with Mechanical springs, 1.460" Dual w/dampner,
135#@1.800" to .600 |
| 3 |
with Roller springs, 1.540" Dual w/dampner,
190#@1.900" to .660 |
| 4 |
with Roller springs, 1.550" Dual w/dampner,
220#@1.950" to .720 |
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| Heads - As Cast (72cc chamber) |
| Part # |
Valve
Size |
Description |
Bare/
Pair |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-2000-80 |
2.02-1.6 |
72cc/180/SP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-80A |
2.02-1.6 |
72cc/180/AP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-00 |
2.02-1.6 |
72cc/200/SP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-00A |
2.02-1.6 |
72cc/200/AP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-20 |
2.02-1.6 |
72cc/220/SP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-20A |
2.02-1.6 |
72cc/220/AP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-35 |
2.08-1.6 |
72cc/235/SP |
$579 |
$835 |
$865 |
$875 |
$959 |
| 223-2000-35A |
2.08-1.6 |
72cc/235/AP |
$579 |
$835 |
$865 |
$875 |
$959 |
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| Heads - CNC Chamber (72cc chamber) |
| Part # |
Valve
Size |
Description |
Price/PAIR
Bare |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-2600-20 |
2.02-1.6 |
72cc/220/SP |
$669 |
$929 |
$949 |
$959 |
$1049 |
| 223-2600-20A |
2.02-1.6 |
72cc/220/AP |
$669 |
$929 |
$949 |
$959 |
$1049 |
| 223-2600-35 |
2.08-1.6 |
72cc/235/SP |
$669 |
$929 |
$949 |
$959 |
$1049 |
| 223-2600-35A |
2.08-1.6 |
72cc/235/AP |
$669 |
$929 |
$949 |
$959 |
$1049 |
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| Heads - Full CNC (72cc chamber) |
| Part # |
Valve
Size |
Description |
Price/PAIR
Bare |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-2622-20A |
2.08-1.6 |
72cc/220/SP |
$1779 |
$2029 |
$2059 |
$2069 |
$2159 |
| 223-2622-20 |
2.08-1.6 |
72cc/220/AP |
$1779 |
$2029 |
$2059 |
$2069 |
$2159 |
| 223-2622-35A |
2.125-1.6 |
72cc/235/SP |
$1779 |
$2029 |
$2059 |
$2069 |
$2159 |
| 223-2622-35 |
2.125-1.6 |
72cc/235/AP |
$1779 |
$2029 |
$2059 |
$2069 |
$2159 |
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| Heads - As Cast (64cc chamber) |
| Part # |
Valve
Size |
Description |
Price/PAIR
Bare |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-4000-80 |
2.02-1.6 |
64cc/180/SP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-80A |
2.02-1.6 |
64cc/180/AP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-00 |
2.02-1.6 |
64cc/200/SP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-00A |
2.02-1.6 |
64cc/200/AP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-20 |
2.02-1.6 |
64cc/220/SP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-20A |
2.02-1.6 |
64cc/220/AP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-35 |
2.08-1.6 |
64cc/235/SP |
$585 |
$829 |
$859 |
$875 |
$959 |
| 223-4000-35A |
2.08-1.6 |
64cc/235/AP |
$585 |
$829 |
$859 |
$875 |
$959 |
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| Heads - CNC Chamber (64cc chamber) |
| Part # |
Valve
Size |
Description |
Price/PAIR
Bare |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-4600-20 |
2.02-1.6 |
64cc/220/SP |
$679 |
$939 |
$959 |
$969 |
$1059 |
| 223-4600-20A |
2.02-1.6 |
64cc/220/AP |
$679 |
$939 |
$959 |
$969 |
$1059 |
| 223-4600-35 |
2.08-1.6 |
64cc/220/SP |
$679 |
$939 |
$959 |
$969 |
$1059 |
| 223-4600-35A |
2.08-1.6 |
64cc/220/AP |
$679 |
$939 |
$959 |
$969 |
$1059 |
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| Heads - Full CNC (64cc chamber) |
| Part # |
Valve
Size |
Description |
Price/PAIR
Bare |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-4622-20 |
2.02-1.6 |
64cc/220/SP |
$1795 |
$2045 |
$2075 |
$2085 |
$2175 |
| 223-4622-20A |
2.02-1.6 |
64cc/220/AP |
$1795 |
$2045 |
$2075 |
$2085 |
$2175 |
| 223-4622-35 |
2.08-1.6 |
64cc/220/SP |
$1795 |
$2045 |
$2075 |
$2085 |
$2175 |
| 223-4622-35A |
2.08-1.6 |
64cc/220/AP |
$1795 |
$2045 |
$2075 |
$2085 |
$2175 |
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| Heads - As Cast (50cc chamber) |
| Part # |
Valve
Size |
Description |
Price/PAIR
Bare |
Kit 1
Assem |
Kit 2
Assem |
Kit 3
Assem |
Kit 4
Assem |
| 223-5000-00 |
2.02-1.6 |
50cc/220/SP |
$585 |
$835 |
$865 |
$875 |
$959 |
| 223-5000-00A |
2.02-1.6 |
50cc/220/AP |
$585 |
$835 |
$865 |
$875 |
$959 |
| 223-5000-20 |
2.02-1.6 |
50cc/220/SP |
$585 |
$835 |
$865 |
$875 |
$959 |
| 223-5000-20A |
2.02-1.6 |
50cc/220/AP |
$585 |
$835 |
$865 |
$875 |
$959 |
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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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