

Cylinder Head Specifics:
Intake Valve Diameter: 2.600 - 2.670
Exhaust Valve Diameter: 1.800 - 1.880
Combustion Chamber:
Volume: 73 to 85 c.c. Nitrous
Seats: Steel (or) Copper Beryllium
Minimum Bore: 4.600
Intake Manifold: MBE Ported Cast w/ MBE tapered spacer (or) Sheet Metal
Rockers: Jesel (Special)
Complete Assemblies Available
Details
MBE’s specialized drag racing cylinder head is a clean-sheet design that fits Big Block Chevrolet blocks with 5.000 inch bore centers. And because MBE considers every performance aspect of the cylinder head and not just the ports, it has also made advancements to help improve valve control at extreme rpm levels. This includes a one-piece rocker bar that helps stabilize the valvetrain all the way up to a screaming 10,600 rpm. No other 5.000-inch bore space head can offer this!
Because different drag racers have different needs, MBE has developed several different versions of this head. For drag racers using nitrous...
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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...