harley-davidson twin cam cnc ported heads

More than any other single factor, the porting process is responsible for the high power output of modern engines. Porting the heads provides the finely detailed attention required to bring the engine to the highest level of efficiency.

Cylinder heads, as manufactured, are usually suboptimal due to design and manufacturing constraints. Do it today at 47Ĭylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality and quantity of the air flow. Give dc v-twin a call for more information on the b2 or to place a custom order. Next time you get your butt handed to you on the street in a red light to red light drag race match, just consider the making the move to the custom ported b2 heads from dc v-twin. This is the only way to truly get the most from your bike in a naturally aspirated format. Make no bones about it, the b2 heads will pick up about ten horsepower with a quick install or you can go the extra mile and have the heads ported and the chambers reworked for maximum horsepower at dc v-twin. The chamber gets bored to a different angle to allow for better blame travel and to also help in gaining that last little bit of compression. Not only does dc v-twin perform custom cylinder head porting on the b2 heads, they also reshape the chamber. The b2 heads are also know as the big fin heads from the guys at s&s cycle.

The valve sizes in the b2 heads are considerably larger than those in the super stock heads from s&s and especially the stock heads from harley davidson. B2 heads come with 2.200 intake valves and 1.800 exhuast valves. We can take any 4 1/8th bore engine and make it faster by installing b2 heads and going one step above and beyond by custom porting the b2 head. That’s what the guys at dc v-twin have done.

S&S Pro Stock Downdraft Billet Engine 160' NHRA & AHDRA Pro Gas LegalĪs with any good engine, someone some where is trying to make it faster.

Harley-davidson twin cam cnc ported heads