No disrespect DV, we're usually singing from the same hymn book, but the Power Pak heads can work very well on a 2 or mild 327 street engine The Power Pak heads are a good match for a 2 based build and will handle a lot more RPM than you'd thinkThe above small block head is called a "power pack" head because of the smaller than standard combustion chamber and the shape of the "casting id symbol" on the end surface This mark is in the same places on the head as the "double hump" mentioned above Note that many other symbol shapes were usedThis easy to install, plug and play, Alpine head unit power pack amplifier gives you a higher wattage output to your speakers for better sound and speaker control Power pack amplifiers result in up to a 150 percent power increase over the original power from the head unit's builtin amplifier Plug and play power pack amplifiers require no additional wiring which makes for a
Chevrolet Double Hump Cylinder Heads The Same But Not Equal
