B2 style Twin cam Heads

B2 Twin Heads are custom made to order 4 to 6 weeks  
These B2 style Head castings are machined from original rough castings. They are machined at R&D Machine in Troy Ohio on our state of the art 5 axis machining center. The intake and exhaust ports were developed by cylinder head expert Phil Darcy at DRS. They have a 2.300 intake valve and a 1.800 exhaust. They can be ordered with either stainless or titanium valves. The heads come with Ampco 45 seats and guides. The heads come equipped with PAC springs and will handle up to a .800 valve lift. The heads are assembled by Jason Crisp at 141 Speed Cycles in Winchester Virginia. These heads with the proper cam and exhaust and throttle body have produced nearly 200 hp. on a 124 cui. Harley Twin cam that will start easily with the standard onboard starter. These heads are used in AMRA competition by multiple riders, winning 2 national championships last year.