Here are the details on our new Generation 4 Head package. First off, this head package was developed to be a simple no-nonsense bolt on upgrade that will increase power and torque across the power band without additional mechanical modifications or calibration changes. These are direct replacement heads that will work with your production rocker arms, pushrods, valve covers and engine controller.
These heads can be used with or without exhaust and intake modifications, but will produce best peak power with headers and ported intake. We offer complete installed packages or parts only. We are there for you after the sale with full technical support.
We developed this package with several goals. Best average power and torque across the powerband, no changes to driveabilty, no check engine lights and reasonable pricing.
Our heads are offered on exchange or we can do yours. Each head is fully ported on intake and exhaust, bowl area radiused, ports volume matched, multi-angle valve job, combustion chamber reshaped and volume matched, gasket surface is machined for MLS gaskets and correct compression ratio. All new seals are installed and all components machined or replaced as needed.
Cylinder Heads (exchange or yours) $2695.00
ARP Bolt set $411.00
Here are some results of our testing. This car was a 2008 Coupe with Belanger headers, high flow cats, side exhaust and Mopar controller. Initial test were done with Torco fuel additive to bring the Octane level to 93 as required for the Mopar
computer.
Our criteria for testing was very controlled, each test was performed at the same engine coolant temp and heat soak.
Our initial test was a before and after test of the heads. The only variables other than the head change was the removal of carbon from the piston tops, new plugs and an oil-air separator for the PCV system.
34hp and 26trq
Next test was to remove the Arrow intake and install our ported intake.
5hp and 6trq
Our final test was to raise the octane level to about 95
3hp and 7trq
I hope this information helps, please feel free to call us with any questions you may have. We are taking orders now.
310-841-6996
These heads can be used with or without exhaust and intake modifications, but will produce best peak power with headers and ported intake. We offer complete installed packages or parts only. We are there for you after the sale with full technical support.
We developed this package with several goals. Best average power and torque across the powerband, no changes to driveabilty, no check engine lights and reasonable pricing.
Our heads are offered on exchange or we can do yours. Each head is fully ported on intake and exhaust, bowl area radiused, ports volume matched, multi-angle valve job, combustion chamber reshaped and volume matched, gasket surface is machined for MLS gaskets and correct compression ratio. All new seals are installed and all components machined or replaced as needed.
Cylinder Heads (exchange or yours) $2695.00
ARP Bolt set $411.00
Here are some results of our testing. This car was a 2008 Coupe with Belanger headers, high flow cats, side exhaust and Mopar controller. Initial test were done with Torco fuel additive to bring the Octane level to 93 as required for the Mopar
computer.
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Our criteria for testing was very controlled, each test was performed at the same engine coolant temp and heat soak.
Our initial test was a before and after test of the heads. The only variables other than the head change was the removal of carbon from the piston tops, new plugs and an oil-air separator for the PCV system.
34hp and 26trq
Next test was to remove the Arrow intake and install our ported intake.
5hp and 6trq
Our final test was to raise the octane level to about 95
3hp and 7trq
I hope this information helps, please feel free to call us with any questions you may have. We are taking orders now.
310-841-6996
From practical experience we find that this tubular 5 into 1 free flow header design should respond well to these type of modifications.
