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Old 01-30-2004, 12:58 AM   #41
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i did some researching on it, its all complex and technological. VVT, DOHC, the works.
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Old 01-30-2004, 10:13 AM   #42
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Does it have Displacement on Demand too?
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Old 01-30-2004, 12:14 PM   #43
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One topic that often overlooked when the subject of drivetrains comes up is the transaxle. With all these new engine/transaxle combos coming out, it just accentuates GM'* inability to put a solid transaxle behind (beside?) the L67.

With the Series III L67 having 260 HP and 280 FT. LBS torque, the 4T65E-HD transaxle is at it'* rated torque limit. Rather than come up with a beefed up 4T65E-HD, it seems GM prefers the 4T80E because it can take much more power but it'* a bigger package.

Signs are the L67 and 4T65E-HD will have limited life from here...too bad because it'* a durable engine that responds well to mods, and it most be cheap for GM to produce. Guess the W and H bodies will still use it for a time but...

Cheers,
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Old 01-30-2004, 12:18 PM   #44
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They should switch to a 4t80, but that'* too simple. WHy mess with the 60 when it worked better! It'* at the rated torque exactly because the engines are kept at that thru timing adjustments.
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