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Race-Rite® Big Block Series/24°

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RR BB-3 XTRA 345™
• 24° Valve Angle
• 345 cc Intake Ports
• 2.300 / 1.880 Valve Sizes
• Flows Over 415 cfm
• Out-of-the-Box Horsepower
• 119 cc CNC Ported Combustion Chambers
• Exhaust Ports in Stock Location

BP RR BB-3 XTRA O™
• 100% CNC Ported
• 24° Valve Angle
• Flows Over 390 cfm
• 298 cc Intake Port
• Exhaust Ports in Stock Location

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[tab title=”Description”]

BRODIX is happy to introduce its new line of Race-Rite 24° cylinder heads. These new 24° heads are available in an oval or rectangular port. The BP RR-3 XTRA O is designed to be the ultimate 100% CNC ported street/pro-street head available on the market today. The precision designed 298 cc intake port flows well in the 390 cc range. This new oval port design has an amazing port velocity second to none. Also available in the 24° Race-Rite series is the RR BB-3 XTRA 345. This rectangular port cylinder head flows over 415 cfm as cast with combustion chambers that are CNC ported to assure accuracy. The valve bowls are blended, intake ports are matched, and a competition valve job comes standard. Both of the 24° Race-Rite heads have 2.300/1.800 valves, exhaust ports in standard location, and 119 cc chambers. The Race-Rite series is the answer for more horsepower and less hassle during installation.

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[tab title=”Details”]

Package Heads

Facts and Related Components
• PS CB:
Valve Bowls Blended

• PS MI:
Match Intake Port to MG 2001
(RR BB-3XTRA 345)
Match Intake Port to MG 2009
(BP RR BB-3 XTRA O)

• PS Valve Job:
Competition Valve Job

• Intake Valves:
2.300 x 5.568 o.a.l. – BR 81341

• Exhaust Valves:
1.880 x 5.494 o.a.l. – BR 81138

• Valve Springs:
1.550 Roller Valve Spring – PAC 1941,
255 lb Closed, 610 lb Open,
1.950 Installed Height,
.700 Maximum Lift

1.640 Roller Valve Spring – PAC 1224,
270 lb Closed, 775 lb Open,
2.050 Installed Height,
.800 Maximum Lift (Spring Upgrade)

1.645 Roller Valve Spring – PAC 1247 or PAC 1248,
315lb Closed, 875 lb Open,
2.100 Installed Height,
.850 Maximum Lift (Spring Upgrade)

• Retainers:
1.550 10° Steel – CC 752
1.625 10° Titanium – MA 23640
1.645 10° Titanium – MA 2001

• Valve Locks:
10° Jumbo – CC 611

• Rocker Studs:
7/16 – BR 716L, AR RRS-4I

• Guide Plates:
3/8 – CC 4806

• Valve Seals:
11/32 – US VS529V
(1.550, 1.625 Valve Spring)
11/32 – US VS485V
(1.645 Valve Spring)

 • Torque Heads:
70 ft-lb

• Torque Rocker Studs:
40-45 ft-lb

• Intake Gaskets:
BRODIX MG 2001, FP 1252-3
(RR BB-3 XTRA 345)
BRODIX MG 2009
(BP RR BB-3 XTRA O)

• Head Gaskets:
4.540 – FEL-PRO 1017, COMETIC C5433
4.600 – FEL-PRO 1057, COMETIC C5434

• Exhaust Gaskets:
FEL-PRO 1411, COMETIC C5429

• Head Bolts:
ARP 135-3606, MANLEY 42192 / MANLEY 42102

• Head Studs:
ARP 235-4702 (12 pt)

• Accessory Bolt Holes Are Drilled

• Spark Plug Starting Points:
NGK R5671A-10
for Alchohol
NGK R5671A-9
for Racing Gas

• Spring Pockets:
May Not Be Cut Any Larger or Deeper Than 1.750

• Valve Angle:
24° and 4° Intake,
15° and 4° Exhaust

• Angle Milling:
.0066 in Per cc

• Flat Milling:
.0050 in Per cc

• Angle Machining:
Not Available on CNC Ported Heads

• Dowel Shift:
N / A

• Pushrod Slots:
Standard

• Stud Girdle:
Standard,
BRODIX 1230

• Rocker Arms:
Standard

• Lifters:
Standard

• Pistons:
2° Valve Rolled Pistons

• Pushrods:
Check Pushrod Clearance with Head Installed on the
Engine Block Before Final Assembly

• Intake Manifold
BM 2017* / BM 2027*
(RR BB-3 XTRA 345)HV 2007 / HV 2008 / HV 2017
(BP RR BB-3 XTRA O)
*Oval Port Manifold MUST Be Port Matched to Fit Rectangular Port Heads

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[tab title=”Flow Chart”]

Flow Chart cfm @ 28″ H20

Part Number Valve Size 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900
RR BB-3 XTRA 345
(CNC Combustion Chambers)		 2.300 Intake 162 244 312 355 389 406 414 417
1.880 Exhaust 112 146 178 203 222 235 238 241
BP RR BB-3 XTRA O
(CNC Combustion Chambers)		 2.300 Intake 163 242 313 362 393 394 392
1.880 Exhaust 112 170 207 237 262 279 286

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[tab title=”Easy Order Numbers & More”]

Basic Easy Order Numbers

Part# Easy
Order #		 Port
Vol.		 Cham.
Vol.		 Int/Ext
Valve 		Spring Seat
Pressure		 Spring
Diam.		 Ret.
ST/TI		 Per
RR BB-3 XTRA 345 BARE
 2060004 345 119 1
RR BB-3 XTRA 345 PKG
 2061040 345 119 2.300 / 1.880 240 1.550 ST 1
RR BB-3 XTRA 345 PKG
 2061041 345 119 2.300 / 1.880 250 1.640 TI 1
RR BB-3 XTRA 345 PKG 2061042 345 119 2.300 / 1.880 315 1.645 TI 1
RR BB-3 XTRA 345 PKG
 2061043 345 115 2.300 / 1.880 240 1.550 ST 1
RR BB-3 XTRA 345 PKG
 2061044 345 115 2.300 / 1.880 250 1.640 TI 1
RR BB-3 XTRA 345 PKG
 2061045 345 115 2.300 / 1.800 315 1.645 TI 1
BP RR BB-3 XTRA O BARE
 2068001 298 119 1
BP RR BB-3 XTRA O PKG
 2068120 298 119 2.300 / 1.880 240 1.550 TI 1
BP RR BB-3 XTRA O PKG
 2068121 298 119 2.300 / 1.880 240 1.550 TI 1
BP RR BB-3 XTRA O PKG
 2068122 298 119 2.300 / 1.880 250 1.625 TI 1
BP RR BB-3 XTRA O PKG
 2068123 298 115 2.300 / 1.880 240 1.550 TI 1
BP RR BB-3 XTRA O PKG
 2068124 298 115 2.300 / 1.880 250 1.640 TI 1

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[tab title=”Instruction Sheet”]
bigblockheadinstructions

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