FACTORY SPECIFICATIONS FOR THE HILLMAN HUNTER
| ENGINE - | STANDARD MOTOR | HIGH PERFORMANCE MOTOR (GT-660) |
| BORE & STROKE (Ins) | 3.21 x 3.25 | 3.21 x 3.25 |
| B.H.P (Gross) | 73 @ 4900 | 94 @ 5200 |
| MAX. TORQUE (lbs.-ft) | 99 @ 2700 | 107 @4000 |
| COMPRESSION RATIO | 8.4 : 1 | 9.2 : 1 |
| FIRING ORDER | 1, 3, 4, 2 | 1, 3, 4, 2 |
| VALVE CLEARANCES (Hot) | ||
| INLET (Ins.) | .012 | .012 |
| EXHAUST (Ins.) | .014 | .014 |
| VALVE TIMING | ||
| INLET OPENS | 19 DEG. B.T.D.C | 29 DEG B.T.D.C |
| INLET CLOSES | 57 DEG. A.B.D.C | 63 DEG. A.B.D.C |
| EXHAUST OPENS | 61 DEG. B.B.D.C | 69 DEG. B.B.D.C |
| EXHAUST CLOSES | 15 DEG. A.T.D.C | 23 DEG. A.T.D.C |
| OIL PRESSURE (Hot) | ||
| AT 50 M.P.H | 40 p.s.i. | 40 p.s.i. |
| OIL CAPACITY (including filter) | 7 1/2 pints | 7 1/2 pints |
| IGNITION SYSTEM - | ||
| TYPE | 12 Volt Coil and Distributor | 12 Volt Coil and Distributor |
| TIMING (Static) | 6 Deg. - 10 Deg. B.T.D.C | 6 Deg. - 10 Deg. B.T.D.C |
| SPARKING PLUGS | 14 mm. Champion N9Y | 14 mm. Champion N9Y |
| SPARK PLUG GAP | .025" | .025" |
| POINTS GAP | .015" | .015" |
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These Pages compiled by John F. McRae -GOODWOOD- South Australia July 2005