SAR/BRODIX BB-5 390CC SPORTSMAN HEADS

At SAR all head porting is done in house. We use a state of the art 5 axis CNC vertical machining center, which can produce precision work to programmed "blue print" specs.

The BB-5 heads are the largest intake port volume BBC head casting, with raised port aluminum cylinder heads are recommended for 540 cu. in. and larger engines, with capabilities of substaining 600 + cu. in. Other features include, replaceable step bronze guides valve sizes 2.350" x 1.900". Custom Sonny's heart shape chamber design is also incorporated in this cylinder head.
Fully Race Prepared CNC Ported Castings
PRICE $3,020.00
SAR/BRODIX BB-5 390CC SPORTSMAN HEADS - Sonny's Racing Engines & Components
Click image to enlarge
Specifications
  • Chamber vol. 119 cc
  • Intake runner vol. 395 cc
  • Exhaust runner vol. 123 cc
  • Peak intake flow 405 cfm @ .800"
  • Peak exhaust flow 275 cfm @ .800"
  • Correct spring height and assemble with 28" H20
  • Actual intake sq. inches 1.800 x 2.520 = 4.530
Features
  • CNC machined castings
  • Manley and Brodix stainless steel valves
  • Install/fit bronze guides
  • Manley Vasco-jet valve springs
  • Machine for larger valve springs
  • Manley titanium 10 deg retainers
  • Bowl porting
  • Manley hardened 10 deg locks
  • Precision, multi-angle valve job and equalize seat depth
  • CNC Port chambers
  • Manley hardened spring cups
  • Port match intake and exhaust
  • Teflon valve seals
  • Machine for Vasco-Jet spring
  • Rocker studs and pushrod guide plate (1.625") 11/32" bronze guides
  • Hand contoured by one of our Flow Specialist
  • Milled to true
  • Pressure checked
Options
Race ready fully assembled heads $3,835.00
For Questions or Additional Information Call 434-239-1009 or Contact Us