Brodix BR 3™ Series LS3 Compatible Series Cylinder Heads/15° (sold as a pair)

$1,554.99$3,559.99

BRODIX delivers the industry’s most durable replacement for the LS3 style cylinder heads with the introduction of the BR 3 series. The BP BR 3 is a 100% CNC ported head that features a 280 cc intake port that flows over 363 cfm. The BR 3 is the unported version designed for outstanding “out-of-the-box” performance. Both heads utilize a 15° valve angle, a 71 cc combustion chamber, and a 2.165 / 1.590 valve combination, and accept all standard LS3 components. The BR 3 series shares all of the legendary BRODIX features including easily repairable A-356 virgin aluminum alloy and the strongest deck surface in the industry.

BR 3™
• 15° Valve Angle
• 2.165 / 1.590 Valve Sizes
• Out-of-the-Box Horsepower
• 71 cc Combustion Chambers
• LS3 Compatible
• Uses Existing LS3 Rockers

 

BP BR 3™
• 100% CNC Ported
• 280 cc Intake Ports
• Flows Over 360 cfm
• 15° Valve Angle
• LS3 Compatible
• Uses All Standard LS3 Components
Clear

Earn up to 3,560 SSOnly Points.

Description

BRODIX delivers the industry’s most durable replacement for the LS3 style cylinder heads with the introduction of the BR 3 series. The BP BR 3 is a 100% CNC ported head that features a 280 cc intake port that flows over 363 cfm. The BR 3 is the unported version designed for outstanding “out-of-the-box” performance. Both heads utilize a 15° valve angle, a 71 cc combustion chamber, and a 2.165 / 1.590 valve combination, and accept all standard LS3 components. The BR 3 series shares all of the legendary BRODIX features including easily repairable A-356 virgin aluminum alloy and the strongest deck surface in the industry.

Package Heads

Facts and Related Components

• PS CB:
Valve Bowls Blended• PS MI:
Match Intake Ports to FEL-PRO 1223-3• PS Valve Job:
Competition Valve Job

• Intake Valves:
2.165 x 4.900 o.a.l. x 8 mm Stem, Beadlock – MA 11686

• Exhaust Valves:
1.590 x 4.923 o.a.l. x 8 mm Stem, Beadlock -MA 11661

• Valve Springs:
1.350 Hydraulic Roller Valve Spring – MA 221435,
180 lb Closed, 435 lb Open,
1.850 Installed Height,
.700 Maximum Lift

• ID Locators:
MANLEY 42135

• Retainers:
1.290 7° Steel – MA 23610

• Valve Locks:
MA 13098

• Rocker Studs:
N/A

• Guide Plates:
N/A

• Valve Seals:
8 mm – US VS31500 V

• Torque Heads:
11 mm Studs – 85 ft-lb With Oil
8 mm Studs – 26 ft-lb With Oil• Torque Rocker Studs:
22 ft-lb• Intake Gaskets:
FEL-PRO 1223-3

• Head Gaskets:
GM 19170418

• Exhaust Gaskets:
FEL-PRO MS 92467

• Head Studs:
ARP 234-4319 (6 pt) for L92 / LS3 Blocks

• Accessory Bolt Holes Are Drilled

• Spark Plug Starting Points:
NGK R5671A-7
for Pump Gas
NGK R5671A-8
for Racing Gas

• Spring Pockets:
May Not Be Cut Any Larger or Deeper 1.350

• Valve Angle:
15°

• Flat Milling:
.0060 in PER cc

•Dowel Shift:
Standard

• Pushrod Slots:
Standard

• Pistons:
Standard

• Rocker Arms:
Standard

• Lifters:
Standard

• Pushrods:
Standard

• Valve Centerline:
Standard

• Intake Manifold:
Standard

Flow Chart cfm @ 28″ H20

Part Number Valve Size
0.200
0.300
0.400
0.500
0.600
0.650
7.000
BR 3 2.165 Intake 150 213 266 316 342 345 348
1.590 Exhaust 93 142 171 187 200 203 206
BP BR 3
(CNC Ported)
2.165 Intake 146 213 268 318 347 357 364
1.590 Exhaust 100 146 183 209 226 229 234

Additional information

CNC

Yes, No

Assembled

Yes, No Bare