How much HP capability?

[BaldMenace]

When I bought my supposed rebuilt engine I was told it had Kenny detweiler ported heads and intake. I got it disassembled and inspected and just like all the other BA claims it doesn't appear to be the case. How much horsepower are a set of Port matched heads and factory intake capable of supporting without pushing them to the limit with really high boost?

 

[Reggie West]

Those heads and intake look to be ported to me.

You can make 800 hp on iron heads but you will need more boost to make the horsepower. Aluminum heads can flow more in terms of CFM than irons but the cost is the cost.

Have the heads gone through by a good shop and go for it.

What are your goals for the motor?

 

[BaldMenace]

Those heads and intake look to be ported to me.

You can make 800 hp on iron heads but you will need more boost to make the horsepower. Aluminum heads can flow more in terms of CFM than irons but the cost is the cost.

Have the heads gone through by a good shop and go for it.

What are your goals for the motor?

I don't really have any substantial goals other than dependable and decent torque. Mainly I'm just trying to ascertain what I have to make sure that it all works together rather than a bunch of mismatched parts. My Turbo is substantially bigger than stock and I have Cruze headers and a roller cam. Bigger throttle body and injectors.