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

Name: Brodix BR 3™ Series LS3 Compatible Series Cylinder Heads/15° (sold as a pair)
SKU: brodix
Availability: OutOfStock

$2,010.00 – $4,509.10

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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

CNC

Assembled

Clear

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
BR 3	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
BP BR 3 (CNC Ported)	1.590 Exhaust	100	146	183	209	226	229	234