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Brodix "The Big Dukes" PB 1800 Series / 18°

Brodix "The Big Dukes" PB 1800 Series / 18°

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Your Price: $2,453.60
Part Number:270

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The 18° Pro Stock style cylinder heads from BRODIX are the Big Dukes. The PB 1800 and PB 1801 were the original designs in this legendary series. The PB 1802 is a cast ported version of the PB 1800 capable of flowing over 480 cfm. The professionals at BRODIX have contoured each intake port, exhaust port, and combustion chamber to flow its maximum potential out of the box. The revolutionary PB 1803 cylinder heads from BRODIX feature oval intake ports, CNC combustion chambers, and use all standard components for the 18° Pro Stock head excluding the manifold. For the BP PB 1803, BRODIX contacted the best head porters in the business to incorporate our porting design into a 100% CNC ported masterpiece. The BP 1803 utilizes an as-cast intake port that delivers outstanding out-of-the-box performance. Copper valve seats and a 55° seat angle make either head an excellent choice when looking for serious torque and horsepower. All Big Duke series heads require special pistons, valve covers, head studs, shaft rockers, and intake manifold.

  • Ends milled & drilled for accessories
  • Raised intake & exhaust ports
  • 18° Valve angles
  • A-356 Virgin Aluminum
  • Minimum 80HP Gain over stock bbc heads

** The price in the cart reflects a set of heads**

Cylinder Head Specifications
Intake Port Chamber Volume Valve Sizes Intake/Exhaust Exhaust Pattern Intake Manifold
PB 1801 375 cc 89 cc 2.400/1.900 Standard PM 1800/PM 1810
PM 1903**/
PM 1913**
PB 1800 415 cc 89 cc 2.400/1.900 Standard PM 1800/PM 1810
PM 1903**/
PM 1913**
PB 1802 456 cc 91 cc 2.400/1.900 Standard PM 1800/PM 1810
PM 1903**/
PM 1913**
PB 1803 413 cc 95 cc 2.450/1.860 Standard PM 1803/PM 1813
PM 1903/PM 1913
BP PB 1803 410 cc 95 cc/ 91 cc* 2.450/1.860 Standard PM 1803/PM 1813
PM 1903/PM 1913
* Chamber Volume With Trick Titanium Valves
** Oval Port Manifold MUST Be Port Matched to Fit Rectangular Port Heads

 

Cylinder Head Recommendations

 

Cubic Inch

Compression

Camshaft

RPM

Application

PB 1801

522 - 555

13.5 Minimum

Roller

4500-7500

Pro Street/
Drag Race/
Truck Puller

PB 1800

540 - 632

13.5 Minimum

Roller

4500-7500

Pro Street/
Drag Race/
Truck Puller

PB 1802

555 - 632

13.5 Minimum

Roller

4500-7500

Pro Street/
Drag Race/
Truck Puller

PB 1803

522 - 632

13.5 Minimum

Roller

4500-7500

Pro Street/
Drag Race/
Truck Puller

BP PB 1803

522 - 632

13.5 Minimum

Roller

4500-7500

Pro Street/
Drag Race/
Truck Puller

 

Flow Chart cfm @ 28" H20

 

Valve Size

0.200

0.300

0.400

0.500

0.600

0.700

0.800

0.900

PB 1801
(Hand Ported)
4.500 Bore

2.400 Intake

162

245

312

367

411

442

463

1.900 Exhaust

129

180

222

269

301

308

315

PB 1800
4.600 Bore

2.400 Intake

117

184

256

328

391

435

453

1.900 Exhaust

113

166

211

239

252

259

264

PB 1802
4.600 Bore

2.400 Intake

135

205

280

351

409

449

480

1.900 Exhaust

100

151

193

234

265

296

306

PB 1802
(CNC Combustion
Chambers)

2.400 Intake

156

230

305

361

414

453

476

1.900 Exhaust

135

180

219

252

294

306

313

PB 1803
(CNC Combustion
Chambers)

2.450 Intake

137

217

296

362

418

464

484

490

1.860 Exhaust

110

162

204

238

265

288

320

328

BP PB 1803
(CNC Ported)

2.450 Intake

145

224

300

369

425

475

500

515

1.860 Exhaust

126

172

211

245

270

318

338

351

 

Package Heads come fully assembled with the following options:

• PS CB:
Valve Bowls Blended

• PS MI:
Match Intake Port to FP 1298
(PB 1800-1802)
Match Intake Port to BRODIX MG 2013
(PB 1803)

• PS Valve Job:
Competition Valve Job

• Intake Valves:
2.400 x 6.600 o.a.l. - BR 81660,
45° Seat Angle (PB 1800-1802)
2.450 x 6.650 o.a.l. - BR 81665,
55° Seat Angle (PB 1803)

• Exhaust Valves:
1.900 x 6.450 o.a.l. - BR 81645,
45° Seat Angle (PB 1800-1802)
1.860 x 6.550 o.a.l. - BR 81685,
55° Seat Angle (PB 1803)

• Valve Springs:
1.625 Roller Valve Spring - MA 221424,
260 lb Closed, 790 lb Open
2.100 Installed Height,
.800 Maximum Lift
1.645 Roller Valve Spring - CC 948,
315 lb Closed, 915 lb Open,
2.100 Installed Height,
.850 Maximum Lift

• Retainers:
1.625 10° Titanium - MA 23640
1.645 10° Titanium - MA 2001

• Valve Locks:
10° Jumbo - CC 611

• Rocker Studs:
Shaft System Required

• Valve Seals:
11/32 - US VS529V (1.625 Valve Spring)
11/32 - US VS485V (1.645 Valve Spring)

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