416 stroker cam choice

pat d said

lots of good info so it looks like im going to dump the 416, i see the duration is a lot shorter and the center line is numerically bigger what does the centerline do and will the roller cam give me a lumpy idle ? on the 5.9 how much potential do i have with the stock bore and not breaking the bank i know heads,cam, headers, 52mm tb and a tune. 3000-3500.00 will get me close to the 400hp mark?

Click to expand...

Cam centerline is the point halfway between the intake and exhaust centerlines at the point of highest lift on the lobe.

You can see it is very closely related to the lobe separation angle which is the total angle from intake and exhaust lobes at their highest points.

Wider LSA or wider centerline improves idle quality and will also yield less cylinder cranking pressure. It also broadens the powerband.

Roller cam has no effect on lumpiness. The nature of the lifters allow a different cut on the lobes. they open and shut the valve quicker.