I have a 360 mopar in my dodge. Yes its the 70-80 model 360 so its carbed. I want to lower compression to 8:1 or 9:1 to run turbos. My current heads are these https://www.summitracing.com/parts/e...0aAhuxEALw_wcB what cc should i go?

 

The heads in the link of 63cc combustion chamber

 

You should be fine with those Edelbrock heads that you've selected. Just take care in selecting the proper thickness head gasket, in addition to taking into account how well aluminum dissipates heat. You might want to contact Edelbrock directly for additional assistance.

 

Yeah we used to deck heads on our model engines in Machine Shop to increase compression so if you can find head gaskets of varying thicknesses you can adjust with that. Even a few thou can make a significant difference.....?

 

okay thank you both ill try to find some different head gaskets to go with and order the turbos!

 

What compression ratio do you have currently? I run 11:1 and with aluminum heads and 91 octane pump fuel I can still run a turbo or blower if i want. Tuning is key. You're overthinking it

 

currently its about 11:1. And yes i probably am over thinking it. I have way to much money into this i would hate to put turbos on and break something. I just want reliable and powerful. Ive always just heard you need 8:1 or 9:1 to run forced induction stuff

 

Ive never done anything except all motor builds. So im new to the forced induction business but i want power and thats about the only way to get the numbers i want

 

No lowering compression just lets you put a few more pounds in it, really. If you have no way of tuning it, it’s extra knock resistance. But if you can boost reference the fuel system and retard timing based on boost level you’re fine. Aluminum heads are also much safer than iron if you have any respectable compression. If you had iron, yeah some larger chambers would be a really good idea.

What’s your quench area?

 

The trick is, make sure you are getting enough fuel for the additional air, and you aren't advancing ignition too far..... You can build some serious power with forced induction.