CYLINDER HEADS
Chevrolet Big Block 396-454 (Cont.) Brodix BB-2 Plus / BB-2 XTRA Aluminum Head The BB-2 head is recommended for use on 427-509 engines with a minimum of 12:1 compres- sion. It features ductile iron valve seats, bronze valve guides and accepts standard valve train components. Sold individually.
BRO2021012
Intake Runner
Comb. Chamber
Port Type Rect Rect.
Valve Angle 26°/17° 26°/17° 26°/17°
Intake Valve 2.250"
Exhaust Valve
Part No.
Description
BRO2020001 BRO2021012 BRO2021024
BB-2 PLUS 312,Bare
312cc 312cc 365cc
119cc 119cc 119cc
1.880"
Assembled BB-2 PLUS 312,1.550" Springs
2.250" 1.880" 2.300" 1.880"
BB-2 XTRA 365,Assembled, 1.550" Spring, 240 Lbs. Seat Pressure
Rect
*Note: These heads feature titanium rather than steel retainers.
Brodix BB-2X Aluminum Head The BB-2X has a larger intake runner than the above BB-2 and is ideal for very large dis- placement (482-522) engines. Accepts standard valve train components and uses a .250" longer intake valve with titanium retainers. Sold individually.
BRO2021038
Intake Runner
Comb. Chamber
Port Type Rect.
Valve Angle 26°/17°
Intake Valve 2.300"
Exhaust Valve
Part No.
Description
BRO2021038
Assembled BB2X, 1.625" Dual Spring
340cc
119cc
1.880"
Brodix BB-3X Aluminum Head The BB-3X Head features a valve angled that is rolled 2 degrees from stock, with newly designed intake and exhaust ports. Most standard valve train components can be used. Sold individually.
BRO2038101
Intake Run- ner
Comb. Chamber
Port Type
Valve Angle
Intake Valve
Exhaust Valve
Part No.
Description
BRO2038100 BRO2038101
BB-3X, Assembled,CNC- Ported With 1.625" Springs BB-3X Assembled, CNC-Ported With 1.645" Springs
366cc 366cc
119cc 119cc
Rect 24°/15° 2.300" 1.880" Rect 24°/15° 2.300" 1.880"
BRO2031016
Brodix BB-3 XTRA 345 Aluminum Heads The Brodix BB-3 XTRA has taken the conventional big block head to the next level with a rolled 24 degree valve angle increasing port velocity propelling the BB-3 XTRA to the top of their class. The BBC-3 XTRA features include; CNC machined 119cc combustion cham- bers, bowls, and ports, 24 degree valve angle, raised V/C rail, phosphorous-bronze valve guides, ductile iron valve seats for unleaded fuels with competition valve job. Sold individually.
Intake Runner
Comb. Chamber
Port Type Rect
Valve Angle 24°/15° 24°/15°
Intake Valve 2.300" 2.300"
Exhaust Valve
Part No.
Description
BRO2030003 BRO2031016
Bare
345cc 345cc
119cc 119cc
1.880" 1.880"
Assembled, 1.645" Spring, 315 Lbs. Seat Pressure, Titanium Retainers
Rect
BRO2060001
Brodix Race-Rite Aluminum Heads The Brodix Race-Rite cylinder heads is the most user-friendly aluminum head that bolts directly in place of stock cast iron heads producing an additional 90 HP allowing reuse of the intake manifold and pistons. The most important improvement is that the exhaust ports are in the stock location eliminating header or manifold interference. Features include;
A-356 virgin aluminum, high-torque intake ports, 119cc combustion chambers, phosphorous-bronze valve guides, ductile iron valve seats for unleaded fuels with competiton valve job, and bullet-proof rocker stands. Sold individually.
Intake Runner
Comb. Chamber
Port Type Rect
Valve Angle 26°/17° 26°/17°
Intake Valve 2.250" 2.250"
Exhaust Valve
Part No.
Description
BRO2060001 BRO2061001
Rectangle Port, Bare
294 270
119 119
1.880" 1.880"
Oval Port, Assembled, 1.550" Spring, 240 Lbs. Seat Pressure Rectangle Port, Assembled, 1.550" Spring, 140 Lbs. Seat Pressure
Oval
BRO2061009
294
119
Rect
26°/17°
2.250"
1.880"
2018 ENGINE BUILDER CATALOG
160
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