Hey Everyone

I want to buy Torq Storm's single charger for a 1970 Olds 455 and want to know what needs to be done to the motor. I will do the blow through carb, fuel pump, air intake, and fuel pressure regulator. As well as an ignition system that is capable of pulling timing under boost, which is what they call for. I'm more wondering what needs to be done to the motor to lower compression, if needed. I also wanted to buy Edelbrock Performer RPM Cylinder Heads, but now I'm worried that would raise compression. If I do need to lower compression, what do I need: heads, cam, and pistons? I'm looking to stay as cheap as possible without jeopardizing reliability.

Any insight would be greatly appreciated.

 

To be honest cheap and supercharger is a contradiction of terms. If you aren't willing to spend some money then find another path. Seriously.

You will need an electric fuel pump with a regulator and a return line. You will need good pistons. To do it right probably a custom piston so you can do whatever you want for compression ratio. When blowing into the cylinder heads, traditional head flow is not as important. I'd certainly do aluminum heads for heat rejection. The new Edelbrock heads are finally a fast burn head, so that would help a lot.

jerry

 

Yeah, 55 year old cast pistons are a disaster waiting to happen. The Edelbrock heads will help if anything despite a slightly raised compression ratio due to a 5cc chamber size. Better pistons and rods are pretty much necessary. Also ring gap is important, I added a bit extra, if I ever go that route. I also have aftermarket forged pistons and rods with a factory forged crank. I will fall right in the middle of their recommended 9 to 9.5 to 1 compression ratio with the new Edelbrock heads. I have an Olds 350, your 455 is at even bigger disadvantage with heavy parts and bigger bearings to contend with. Good luck.

 

If you are going to buy heads then just order pistons that will give you the compression ratio that you want. Are you doing this strictly for the "wow" factor or are you serious about making horsepower ? If it is the latter then the word "cheap" or "less expensive" should not be in your vocabulary.