I see it seems like a lot of people on here are in the process of building or have built bigger CI NA combos. We are in the process as well of building 2 600 ci NA combos for our boat. Just curious of what a lot of guys combos are and what kind of power they made.

Ours will be 600 ci conventional style cylinder head, 4 stage dry sump,cast intake single throttle body in EFI. We are looking to make between 900 to 950.

What drives do you plan to use?

We have #6 drives.

Pump Gas??!! if so..950 seems a bit of a "stretch" to me??

We run mixed pump gas. Comes out to be around 98 octane

What bore and stroke combination will you use and the targeted max RPM?

They will be 4.605 bore and 4.500 stroke. For those short blast we will turn it up to 7400 ish. We have a 32ft Skater so it accelerates extremely well.

Off the shelf cam or custom................its a joke.........but are you going to run a large journal cam or std. sounds like a nice build

Big base circle deal with roller cam bearings. Jesel 904 lifters with the .820 wheel.