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I am getting ready to go at the 302 casting heads with the old grinder after having practiced for about 8 hours on my original '74 318 heads. I keep reading about how the 302 heads have less material around the pushrod and to be very careful. The articles I have read talk about using a Helgesen...

What is the maximum compression ratio that can be run with good 93 octane pump gas in an iron headed motor. I am building a 318 with 302 casting heads and want to get the highest compression ratio possible without getting too close to the ragged edge of detonation on good pump gas. The machine...

I am still undecided on exactly how we are going to build our '74 Duster and am trying to get the best idea I can of options. If I keep the 318 and build it I want to run an Edelbrock RPM Air Gap manifold so I will have to port the 302 casting 318 heads I already have so there is not a big step...

Hello, I have been preparing to build my little 318 to try to get around 400hp and about half of the folks on this site keep telling me to just go for a 360 for about the same money and get more displacement. Here is my question. my car has a 904 transmission and an 8 1/4. I am having the...

I have a '74 318 Duster that we are working on right now. We are going to bore it .030 and use the Keith Black 167 pistons. I have a set of 302 casting swirl port heads that we will use after going with 1.88 1.60 valves. I am going to port match the heads to an RPM Air Gap and gasket match to...

We are in the process of trying to settle on our final plan for a '74 Duster that my nephew and I will be building. It will be just a fun car that will see strip duty and some cruise nights. It is a 318 car with a/c, p/s, p/b and a 904 trans. Here are the thoughts for the set up of the motor...

My nephew and I are building a '74 Duster with a 318. We are going to go with the KB 167 pistons and 302 casting heads to get the compression up. I have been researching intake manifolds and have always liked the RPM air gap manifold performance. I think the rpm range will match what we plan...