

Cylinder Head Specifics:
Intake Valve Diameter: 2.250
Exhaust Valve Diameter: 1.575
Combustion Chamber:
Volume: 33 to 55 c.c. Nitrous
Seats: Steel (or) Copper Beryllium
Minimum Bore: 4.125
Intake Manifold: MBE Ported Cast with MBE tapered spacer (or) Sheet Metal
Rockers: Jesel
Complete Assemblies Available
Details
MBE’s SB2.2 Drag Special cylinder head is practically a clean-sheet design based on the Chevrolet’s SB2.2 architecture. Beginning with their own casting, MBE Cylinder Heads and Manifolds has created what can only be called “an SB2 on steroids.”
By raising both the intake and exhaust port runners a quarter of an inch and precisely controlling the cross-sectional area along the entire length of the ports, MBE has created an SB2 head with record-breaking flow numbers. We’re talking 450 cfm for the intakes and 292 for the exhausts—and remember, MBE is the only cylinder head specialist that guarantees its published port flow numbers.
Big flow requires big valves, and that’s certainly the case here. Each head is outfitted...
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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...