What are the best Cleveland heads?
By far the best factory 351C head is the Ford Australia 4V casting, which has the sweet combination of the 351C-4V wedge chamber with the smaller 2V ports for great low- to midrange torque. It remains the best factory head ever produced by Ford for this mill.
Why can you run higher compression with aluminum heads?
An advantage of the aluminum heads is that because they dissipate heat they are less likely to allow detonation WITH a higher compression ratio.
What octane rating is 10.5 to 1 compression?
Before computer controlled ignition systems anything greater than 10:1 would quite likely require premium, but today an engine with a compression ratio of 10.5:1 can run on 87 octane (or at least my ’14 Honda Accord can).
Did Ford ever make a Boss 351?
The Boss 351 was built for just one year, with only 1,806 units produced—slightly more than the Boss 429. In addition to a Hurst shifter, the package included a competition-grade suspension and power front disc brakes.
What kind of heads does a Ford 351C have?
FORD 351c Cleveland Aluminum Cylinder Heads 220cc 64cc Hydr-FT Assembled Set! These Heads Sold as a pair. 400″ thick deck for use with nitrous, ultra high compression, and turbo/superchargers. Intake Runners Raised .300 ths”, Manifold Must be Able to handle .300ths”.
What kind of studs do I need for a Boss 351?
The Boss 351 head has screw-in studs and guide plates due to the mechanical lifters; however, this is a modification you can make to any Cleveland head with a good machinist. Bolt-fulcrum pedestals are machined down to make room for guideplates, then drilled and tapped for screw-in studs.
What kind of combustion chamber does a Ford 351 have?
The North American 351C-4V head with closed wedge chambers offers one of the best combustion chambers of its time. However, it is a medium- to high-RPM cylinder head with huge intake ports and lackluster exhaust ports with an ugly floor.
What kind of heads does a Ford 289 have?
Ford Performance 289/302/351W Aluminum Cylinder Heads. “Z-Head” cylinder heads are designed for the 302 or 351 Windsor-style engines. Cast with high-flow ports and 20 degree inline valves, these heads feature steel alloy intake and exhaust valve seats with bronze valve guides (on assembled models).