AFFORDABLE INNOVATIONS FROM BRODIX/SONNY'S PB 1802 THE BIG DUKE

After months of testing, flow bench work, and porting research, the new PB 1802 has been completed. The intake port will flow 495 cfm and the exhaust port will flow over 300 cfm on this revolutionary 18 degree big block cylinder head. The professionals at BRODIX have contoured each intake port, exhaust port, and combustion chamber to flow its maximum potential out of the box. The PB 1802 is economically priced for the Sportsman racer's budget unlike other heads with the same characteristics. All BRODIX heads are made of the best aluminum possible (A-356) and have solid phosphorous bronze guides and ductile iron valve seats.

facts and related components

•   • Combustion chambers: 91 cc

  • Intake port volume: 456 cc

  • Intake port dimensions: 1.840 x 2.400

  • Intake valve sizes: 2.400

  • Exhaust valve sizes: 1.900

  • Spring pockets: 1.625

  • Valve angle: 18 degree x 4 degree intake, 9 degree x 4 degree exhaust

  • Flat milling: .055 in PER cc

  • Lifters: Standard big block

  • Pistons: Standard 18 degree x 9 degree valve angle

  • Pushrods: Custom length

• • STANDARD PACKAGE COMPONENTS:

  • PS CB: Valve bowls blended

  • PS MI: Match intake port

  • PS valve job: Competition multi-angle valve job

  • Intake valves: 2.400 x 6.600 o.a.l.

  • Exhaust valves: 1.900 x 6.450 o.a.l.

  • Valve Springs: 1.625 vasco valve spring, 250 lb on seat, 800 maximum lift

  • Retainers: 1.625 10 degree titanium

  • Valve locks: 10 degree jumbo

  • Valve seals: 11/32

With stainless valves   $4,075.00

Add titanium valves $1,095.00