What's a W8 or 9 head flow? And what do they cost? Do you have to buy a Ritter block to run them?
The W8 or 9 argument just seems like a different application to me. Can't see someone building a W8 motor to drive it on Route 66. Seems like the W8 head is more drag race or circle track application, which doesn't really seam to fit the thread as well.
Not really an apples to apples comparison to talk about W8 or 9 heads since only a select few can afford to run such a beast. Maybe the new TF head would be a better comparison? Oh wait they only beat the pre-Eagle 5.7 head but can't keep up with the Eagle head or the Apache 6.4 head out of the box.
Think 5.9 Magnum block, 4" crank, TF heads and intake and a cam and compression combo you can drive to another state with. Then compare that to an 100K mile '09+ 5.7 with a cam and headers. The 5.7 will probably make close to the same numbers, but be much easier to drive, get far better mileage, not leak oil and start in the morning without drama.
