Cylinder Head Specifications
Intake Port: 200cc
Chamber Volume: 67cc
Valve Sizes: Intake 2.055'' / Exhaust 1.600''
Plug Angle: Stright
Exhaust Pattern: Standard
Valve Centerline: Standard
Cylinder Head Recommendations
Cubic Inch: 355-406
Compression: 10.5 Minimum
Camshaft: Hydraulic Roller/Flat Tappet
RPM: 5500-6500
Application: Oval Track/Drag Race/Pro Street
Facts and Related Components
Torque Heads: 70ft-lb
Torque Rocker Studs: 40-45ft-lb
Spring Pockets: May not be cut any larger or deeper than 1.550''
Valve Angle: 23°
Angle MIlling: .0078'' per cc
Flat Milling: .0060'' per cc
Pushrod Slots: Standard
Rocker Arms: Standard
Lifters: Standard
Package Heads
PS CB: Valve bowls blended
PS MI: Match intake port to FP 1206
PS Valve Job: Competition valve job
Intake Valves: 2.055'' x 4.920'' o.a.l.
Exhaust Valves: 1.600'' x 4.940''o.a.l.
Valve Springs: 1.470'' Hydraulic Roller valve spring, 125lb Closed
325 lb Open, 1.900'' installed height, .575'' maximum lift
1.550'' Flat Tappet valve spring, 140lb closed
400lb open, 1.950'' installed height, .600'' maximum lift
Retainers: 1.430'' 7° Steel, 1.550 7° Steel
Valve Locks: 7°, 10° Jumbo
Rocker Studs: 3/8'', 7/16''
Guide Plates: 5/16''
Valve Seals: 11/32''
RR 200 TM Flow Chart
| Valve Size |
0.200 |
0.300 |
0.400 |
0.500 |
0.600 |
0.650 |
0.700 |
| 2.450'' Intake |
151 |
233 |
294 |
366 |
420 |
470 |
497 |
| 1.860'' Exhaust |
130 |
185 |
224 |
258 |
294 |
333 |
343 |