Owner's Manual
Page 351
...replacement interval to be very durable. The Northstar engine also designed to 100,000 miles. Special cam cover gasket seals isolatevalve train operation. The Northstar engineis designed to require less maintenance than comparable two valve engines. Engine systems are designed to channel air ... operation. The camshafts are placed inside the induction system housing to eliminate theclicking noise which damps out noise. We think it is enhanced by the motionof the inlet valves to drive. 337 The fourvalve per cylinder design provides more efficient engine breathing which is ...
...replacement interval to be very durable. The Northstar engine also designed to 100,000 miles. Special cam cover gasket seals isolatevalve train operation. The Northstar engineis designed to require less maintenance than comparable two valve engines. Engine systems are designed to channel air ... operation. The camshafts are placed inside the induction system housing to eliminate theclicking noise which damps out noise. We think it is enhanced by the motionof the inlet valves to drive. 337 The fourvalve per cylinder design provides more efficient engine breathing which is ...