

Cylinder Head Specifics:
Intake Valve Diameter: 2.100
Exhaust Valve Diameter: 1.550
Seats: Steel (or) Copper Beryllium
Exhaust Flange: S & D
Intake Manifold: MBE Ported w/ MBE Tapered Spacer
Complete Assemblies Available
Details
Developed specifically for select racing series in Northeast Modified racing circles that require a spec head but allow porting. But MBE does significantly more than simply grinding the ports to make them bigger. Beginning with a Brodix casting, MBE completely reworks the cylinder head, which even includes building up some areas with epoxy, to significantly enhance performance. The list of improvements is extensive and MBE even goes so far as to change the floor angles in the intake ports.
The result is a measured—and guaranteed—port flow of 320 cfm for the intakes and 220 for the exhausts. That’s an unheard of amount for a pair of spec heads, and remember, MBE is the only cylinder head specialist that guarantees its published port flow numbers.
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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...