

Cylinder Head Specifics:
Intake Valve Diameter: 2.280
Exhaust Valve Diameter: 1.570
Combustion Chamber:
Volume: 34 to 58 c.c.
Seats: Steel (or) Copper Beryllium
Minimum Bore: 4.180
Intake Manifold: MBE Ported Cast w/ MBE tapered spacer (or) sheet metal
Rockers: Jesel
Complete Assemblies Available
Details
Chevrolet’s ROX cylinder head is essentially an SB2-style head stretched to fit a small block with 4.500-inch bore spacing. This style head is popular among drag racers, but now MBE has taken it to a new level with its reworked ROX 4.500.
MBE’s design isn’t simply an ROX head with enlarged ports. Instead, it has extensively reworked the entire head, including relocating the guide bores to create ports that maximize flow while also increasing port velocity. The completed work dramatically increases the flow through these heads. Intake flow is up to an astounding 460 cfm while the exhausts flow 292. And remember, MBE is the only induction specialist in the industry willing to guarantee its flow numbers.
The MBE ROX 4.500 is a great option for NHRA Comp Eliminator and other serious drag racers. The heads come equipped...
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is the leading induction specialists in the country, with cylinder heads and intake manifolds used in championship winning programs from NASCAR Nextel Cup, to NHRA Pro Stock, to Sprint Cars to Dirt Late Models and more. MBE is the only CNC porting company to guarantee cfm flow numbers for every cylinder head it produces—and those numbers are often the highest you will see anywhere. MBE maintains an aggressive R&D program and constantly updates its cylinder head and intake profiles to stay ahead of the competition.
In racing, there is no “one size fits all” solution, so MBE custom fits port and chamber designs specifically to each racer’s application. This even includes custom port work on intake manifolds to make sure the entire induction path is optimized for the engine. It’s all a part of MBE’s commitment to you: Power through precision.
For more information, please contact MBE Cylinder Heads and Manifolds to find out how they can help you make more power and win races.
Retro Fit & Ported Manifolds| - | One size does not fit all |
| - | Manifolds designed for your applications |
| - | Professional porting like no other |
| - | Deck height is never an issue |
| - | Plenum volumes and designs for your CID and RPM |
| - | Runner lengths and designs for your CID and RPM |
| - | Has a stock appearance - All modifications are hidden |
| - | 4150 or 4500 carb |
custom ported manifolds...