Briggs 305 & 342 cc Billet heads

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  • Regular price $599.95


Briggs 305 & 342 cc Billet heads

Makes 6 more HP than a Briggs stock head
with big valves.

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These heads have been scientifically designed on a clean sheet of paper. These heads are not a modified copy of something else.

First of all you can see that they look different than any other head on the market. They have cooling fins for a reason. The fins help to help keep the head cool. A cool head helps to produce a denser intake charge which produces more horsepower.

The ports are designed with virtually no corners or turns that the fuel and air charge have to make to get into or out of the combustion chamber. The straight ports provide maximum flow at a high velocity. The trick is to make a port that has maximum flow while maintaining high velocity. Just making a bigger port may look good on the flow bench but that huge port kills the velocity and makes the motor a dog off the corner.

The copper valve seats are machined with 4 angles to produce maximum flow, velocity and horsepower. The copper valve seats also seal better than seats made of harder material.

The head accepts stock rockers or roller rockers while using a stock valve cover. The head comes completely assembled with valve springs and smaller diameter 6 mm valve stems. The 6 mm valve stems allow more flow while allowing excellent flow. The valves are also back cut for more flow and horsepower.  

One common problem with Animal heads is that they tend to come loose and destroy the threads in the head. This head comes with a header flange that uses 3 bolts to secure the pipe to the head and there are 2 places on the head to mount header braces. No more loose exhaust pipes. 

The head also includes an intake manifold that accepts a flat slide carb. If you want to use a Tilly carb I have a flange for that also.

Ti valves are the ultimate in cylinder head technology. These valves are exactly 1/2 the weight of the standard steel valves and twice as strong. That means less valve float and bounce issues. It means better valve control at higher rpms. If you want the best valves these custom made valves are it.

ALLOW 3 BUSINESS DAYS FOR ME TO DO THE FINAL ASSEMBLY OF THE HEAD

 

*Titantium Valves Option

Titanium Valves available.

Titanium Valve OPTION
$279.95
Ti valves are the ultimate in cylinder head technology. These valves are exactly 1/2 the weight of the standard steel valves and twice as strong. That means less valve float and bounce issues. It means better valve control at higher rpms. If you want the best valves these custom made valves are it.