This info might be useful....
http://homepage.ntlworld.com/richard...k/15L_4_CY.pdf
intake: 7.2mm lift, open at 2 BTDC, close at 42 ABDC which is 224 degree duration - 110 centreline
exhaust: 7.0mm lift, open at 38 BTDC, close at 2 ABDC, which is 220 duration - 108 centreline
Displacement (cc): 1497
Bore (mm): 74
Stroke (mm): 77.4
Compression Ratio: 9.4:1
Vavles per Cylinder: 4
Cylinder Intake Port Dia (mm): 24.4
Cylinder Exhaust Port Dia (mm): 21
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