WebWe open up the Intake Port enough to still use the same Intake Manifold and gain overall performance without making the Casting thin. 5-Axis CNC Ported for 2.140" Intake and 1.810" Exhaust. Picking up some 40-50 cfm over stock. Flow Numbers Average 300 cfm at .600 Lift. Still a great upgrade for the Stump Pullers. WebNov 29, 2006 · For under $1,000, PowerHeads takes your cylinder-head castings and after CNC-port work along with hand-massaging finish work, vastly improves performance. …
How to Choose Heads for Your Small-Block Ford Rebuild
WebStep by Step: Machining the Heads Step-01: Remove Rocker- Arm Studs The stud removal tool and an air impact wrench are used to extract each of the studs. Step-02: Measure the Stud Hole (Precision Measurement) The … WebFordMuscle shows how to gain horsepower on the cheap by porting your stock small-block Ford cylinder heads. One positive attribute of the Ford heads is the architecture. The ports are evenly spaced on both the … hout plinten
Performance CNC Racing Technology - 5-Axis CNC Porting, …
WebNov 6, 2001 · 2,488 Posts. #8 · Nov 5, 2001. Fairly good article, love the pushrod through the chamber to show the straight shot you get. Planning on a mild port on my 289 heads. My uncle, who has ported 100+ heads in his time says the opposite on polishing...he mildly polishes the intake and leaves the exhaust rough. WebNov 13, 2024 · “Cylinder head porting is something that you develop with repetition. You make subtle changes and you see if it makes it better or made it worse. Air has to pass … WebHow to get a few extra horsepower for free when rebuilding and engine. Port your own cylinder heads and intake. You can do it yourself if you have a good a... how many genes are in a genome