My car, however, has the 390hp 元6 which uses the more aggressive 3883986 cam. That's right, the 2 barrel 396 uses the same cam as the 427/335! The cam is also used in the LS1 427/335 The cam is also used in the 240(net) and 300(gross) 396s So the 2bbl 396 is so badly choked off by the 2bbl that it gives up 60hp! The 396/325 uses the same cam and heads. But here are a few things that surprised me: This is what you find in the 396 2bbl towing motor. 398, so to say it's a mild cam is an understatement. The 3874872 has a duration of 197/197 and a lift of only. I bought the Crane blueprint series cam for my 427/390 and was looking at the original GM cam specs, and I was really surprised how they reuse cams from motor to motor.
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