What Is The Lift On A Stock 454 Cam. Camshaft number = #353040 camshaft intake duration @.050 == 210° camshaft exhaust duration @.050. Valve lift = lobe lift x rocker arm ratio.
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In this thread in this. Web if you are a racer, then the output will surely be appreciated by you. A camshaft with 0.270 in. Web next is the 350/360hp cam that is.461/.480 lift that also uses the same spring. Web would anyone know what the stock camshaft specs are for a gen 5/6 bbc 454? Or how i would go about determining what the duration, lift and overlap is. Performer rpm camshafts have more lift and duration than most street camshafts, with 10 to 12 inches of manifold vacuum at idle. Cam shaft specs for stock 454. Web tested at.600 lift, the heads still flowed 315 cfm, so they looked to be a good match for our pair of cams. Web on most engines, valve lift will be greater than the lobe lift.
Or how i would go about determining what the duration, lift and overlap is. Finally we get to the.520/.520 gross lift/.500 net lift or thereabouts, 375 and 425hp/396/427 cam that use's a good spring, pn 3970627. A 1.5:1 rocker arm ratio takes.4 inches of lobe lift and moves the valve 1.5 times the lobe lift. After installing the cam, but before installing the comp cams beehive. Web ok i am wondering, what is the max valve lift for a 454 bbc stock head? Valve lift = 0.270 x 1.6 = 0.432 in. Web tested at.600 lift, the heads still flowed 315 cfm, so they looked to be a good match for our pair of cams. In this thread in this. Web i don't know what valve springs your 454 has in it, but stock bb cams can range from as short as.398 to the.520 gross lift like we are talking about. Web on most engines, valve lift will be greater than the lobe lift. Web next is the 350/360hp cam that is.461/.480 lift that also uses the same spring.
