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Piston-to-Cylinder
Wall Clearance |
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Bore Diameter |
Naturally Aspirated |
Forced Induction |
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75.50 mm |
0.0021" |
0.0022" |
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81.50 mm |
0.0026" |
0.0027-0.0028" |
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84.50 mm |
0.0027" |
0.0028-0.0029" |
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87.00 mm |
0.0030" |
0.0031-0.0032" |
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| The
cylinder walls should be finish honed with a 380 Grit stone to give a 60'
crosshatch pattern as per Honda's specifications. |
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Piston Ring End Gap |
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|
Bore Diameter |
Naturally Aspirated & Forced Induction |
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|
75.50 mm |
0.011" |
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|
81.50 mm |
0.011-.012" |
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|
84.50 mm |
0.012-0.013" |
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87.00 mm |
0.014-0.015" |
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Piston-to-Cylinder Head Clearance |
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With Eagle Steel Connecting Rods: 0.035"
Minimum |
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With Factory Connecting Rods: 0.045" Minimum |
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Valve-to-Piston Clearance |
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Intake Valves:
0.045" Minimum |
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Exhaust Valves:
0.060" Minimum |
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Engine Break-In (1,000 Miles) |
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| Use a Honda engine
oil filter ONLY!!! |
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| Use a 30W,
non-detergent, non-synthetic engine oil ONLY!!! |
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| DO
NOT take the engine over 3,500 RPM during the first 200 miles of operation.
You can increase the maximum engine speed by 500 RPM for every additional 200
miles of operation. |
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| DO
NOT operate the engine in a "steady state" mode (no open-road
driving). |
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| Change
the oil and filter after 1,000 miles of operation. Synthetic or non-synthetic
engine oil can be used. We use, and recommend Mobil 1. |
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| Use Honda engine oil
filters ONLY!!! |
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