| Create Account
Enter Email id   

Forgot your password?



cylinder head

The internal combustion engine is basically an air pump. The efficient entry and exit of gases into the engine is the most important factor in developing maximum power. Accordingly if high engine performance is desired, attention to the cylinder head is crucial.

In fact, only careful modifications to the cylinder head will allow an engine to rev properly and make power to redline. Not only volume, but velocity of the intake charge will increase performance. Because of this, careful shaping of the ports will not only increase the volume of air traveling through the ports, but maintain increased air-charge velocities at lower RPMs, contributing to a strong torque curve throughout the power band.

Latest News
Bullet is currently trial assembling our first Billet WRX Engine. The prototype billet casings are together with the EJ25 internals installed. We are now ........ more
Jet racing is about to take delivery of their second EVO billet block. Jet has had great success with our billet block. At the 2011 Jamboree (first event with the ........ more
Bullet has began designing and manufacturing billet tapered carby spacers. Currently we have produced spacers for the 4150 series holley in 1, 1.5 .......... more
Another product coming soon by bullet is billet timing covers for the mopar big block and the ford big block. We hope to be dyno testing the ford cover before June on an engine we are currently building. It will be........ more



More BCH videos

Our Affiliates