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SUPERCAR NEDHEADS: BN7S WEAPON SERIES

BN7S "Extreme Power" Supercharger Systems




NEDHEADS BN7S

2006-2013 Z06

LS7 ENGINE
SUPERCHARGED


SUPERCAR NEDHEAD BN7S “WEAPONS SERIES” Cylinder Head Systems are specially designed by Ned Erkman to boost the performance potential of high powered Supercharger engines that require higher flowing exhaust ports to discharge the large volumes of forced inducted air and fuel that combust in the cylinder.

The BN7S WEAPONS SERIES cylinder heads come armed with the biggest diameter 1.650 exhaust valves and 2.25 diameter intake valves, making these technologically innovative cylinder heads the first LS cylinder heads specifically developed for extreme power supercharged engines.

The higher flowing intake and exhaust ports can help to lower boost pressure and increase supercharger power. Since pressure is a measure of resistance, the more efficient cylinder head flow rates, that help to reduce boost pressure, make more efficient power by reducing the energy required to operate the supercharger. The reduced friction associated with the operation of the supercharger also helps to lower intake air temperature and develop more power.

NEDHEAD BN7S WEAPONS SERIES cylinder heads improve supercharged engine efficiency by discharging large volumes of hot exhaust from the cylinder, thereby allowing more air and fuel to fill the cylinder to produce more efficient power. Industry leading cylinder heads for supercharging.


BN7S WEAPONS SERIES NEDHEADS vs. STOCK LS7 HEADS

  • Larger 2.25 Intake & 1.650 Exhaust Valves VS LS7 Heads 2.20 Intake & 1.610 Exhaust.
  • More compression with 66 cc chamber volume VS 70 cc for LS7 cylinder heads.
  • Larger Volume High Velocity Intake ports & higher flowing exhaust ports.
  • Stronger aluminum castings with bronze valve guides to improve valve stem wear.
  • Better intake & exhaust port designs for more flow & improved engine power.
  • Technologically advanced higher heat resistant valves & valve-train equipment.


NEDHEADS BN7S WEAPONS SERIES

BN7S WEAPONS SERIES is made for extreme power Supercharged LS7 engines with innovative high flow intake and exhaust port designs that work well with big intake and exhaust valves for 1000+ BHP Supercharged Power

WELL DOCUMENTED

BN7S WEAPONS SERIES Cylinder Heads

New technologically advanced LS cylinder heads incorporate specially designed intake and exhaust ports and larger 2.25 and 1.650 size valves for big power superchargers. made to produce superior power

GREAT SUPPORT

Custom Modification $3500 to $5500

NEDHEADS BN7S cylinder head prices are based on the required performance levels and the specific valve-train components used with the our custom camshaft profiles.




NEDHEAD BN7S PRODUCT SPECS

BN7S super modified LS7 style cylinder head, specially designed by Ned Erkman, for extreme power supercharged engine applications. Incorporates the largest LS engine exhaust valve size of 1.650” diameter which promotes high exhaust flow rates required for high power supercharged engines. Technologically advanced with relocated 2.25” intake and 1.65” exhaust valves that use the production LS7 engine rocker arms. The biggest valve diameters for high flow rates. Big Power Superchargers require High Flow Exhaust Ports .

The intake valve flow rate exceeds 410 CFM and Exhaust port flow exceeds 290 CFM which represents a 70% intake to exhaust port flow relationship. The BN7S is made in the USA with Virgin A356 Aluminum alloy, which has excellent cylinder head casting characteristics that include higher structural strength and resistance to hot cracking. These high quality features make the BN7S heads great for big power supercharged applications capable of handling over 2000 horsepower.




DYNO TEST: NEDHEAD BN7S CYLINDER HEADS - SUPERCHARGED LS ENGINE SYSTEMS





Dyno Test Results:

DYNO TEST RESULTS COMING SOON

Custom Modified 392 CID LS Engine development in progress with NEDHEAD BN7S WEAPONS Series Cylinder Heads System featuring:

  • Custom Modified DART NEXT GEN LS Engine Block Equipped with MID KIT for 2000 + HP
  • Custom Designed Wiseco Pistons for High Output LS Engine Power & Oliver I-Beam Rods
  • Custom Designed Tool Steel LS Camshaft. Hi-Tech Super Special Series 5 Supercharger Cam

BN7S WEAPONS SERIES Supercharged 392 LS Engine System
Scheduled for launch May 2016

Dyno Tests Results:

DYNO TEST RESULTS COMING SOON

Custom Modified 427 CID LS Engine in development stage with NEDHEAD BN7S WEAPONS Series Cylinder Heads System featuring:

  • Custom Machined & Modified DART NEXT GEN LS Engine Block for 1500 HP Supercharger
  • Custom Designed Wiseco Pistons for High Output LS Engine Power & Manley I-Beam Rods
  • Custom Designed LS Supercharger Camshaft. Super Special Series Supercharger Cam

BN7S WEAPONS SERIES Supercharged 427 LS Engine System
Scheduled for launch June 2016

FLOW TESTS: BN7S NEDHEAD VS. LS7 ENGINE CYLINDER HEADS





BN7S Cylinder Head Intake Port Flow Test

BN7S NEDHEAD vs. Stock LS7 Cylinder Head

Comparative Analysis of BN7S NEDHEAD Intake Port Flow

BN7S cylinder heads have a new intake port design, with larger 2.25 diameter intake valves, developed for high volume intake port flow rates with boost pressure.

To achieve maximum supercharged performance potential, the engine must have good, unrestricted airflow through the complete air intake system. The engine also requires the right camshaft profile and compression ratio to maximize the power potential of the intake airflow. Maximum power potential of supercharged engines determined by Supercharger size, efficiency and flow capacity.

NEDHEAD BN7S Weapons Series Supercharger Systems are developed with custom designed roots supercharger or centrifugal supercharger camshaft profiles and the best compression ratios that optimize engine performance for the specific supercharger application.



BN7S Cylinder Head Exhaust Port Flow Test

BN7S NEDHEAD vs. Stock LS7 Cylinder Head

Comparative Analysis of BN7S NEDHEAD Intake Port Flow

BN7S Cylinder heads have the biggest 1.650 exhaust valves and the potential to flow over 290 CFM through the exhaust port, with a great 2-inch primary tube header pipe.

Technically, exhaust port flow should be at least 70% of intake port airflow, for supercharged engines with higher intake port flow rates from boost pressure.

To optimize the efficiency of engine exhaust flow, the complete exhaust system must be unrestricted with the best exhaust system for the power level desired. The engine also requires the right custom designed camshaft profile with the best exhaust valve lift and duration for the specific supercharged engine application.

NEDHEAD BN7S WEAPONS SERIES Systems are developed with the best custom camshaft profiles for roots blowers or centrifugal superchargers and the best exhaust headers and complete exhaust systems.

If you have questions, please contact us.

Our performance experts will be pleased to answer your technical questions.

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