I have asked numerous people this question and they beat around the bush if it wont work tell me no but I think it will thanx

ok on a d16a6 block a d16z6 vtec head raises compression right.....right.

ok then if I did that as well as put dohc zc pistons and rods in the bottom end that would boost compression even higher but is it too high will I have valve clearance? and will I be able to run on 91 octane pump gas

everyone tells me why dont you just do a B16? why cause these parts are laying around in my garage and I need more power than a dx motor untill I can save up some money but anyone know the answer or how I could get the answer?

 

Why not buy a plastic burette from Jes or Summit and measure the CC's of both chambers to get the head volume and the CC's of a piston 1" down in the hole and subtract the volume of a 1" cylinder of that bore to get the piston cc's and just calculate compression? It really isn't that hard to do. Once you have those two numbers you can easily figure compression with just the strock of the crank and the thickness of the gasket. As for checking p-v I consider it essential in any piston or cam swap and it is not too hard to do yourself in your garage.

 

The reason people beat around the bush on this kind of question is because it really isn't all that common. I'm not familiar enough with ZC pistons and thier dome shape to answer either, but doing some measurements on your own as rev suggested is the first step. You can make almost anything work, but as for the valve clearancing goes, all I can say is to clay the engine and make many, many measurements as you go.

The big thing to remember is that anything over about 11:1 compression is going to start making it harder and harder to tune properly.

 

I'm not really experienced in this technical of motor work I am getting the motor balanced,reconditioned rods and shot pein of everything but I'm worried about valve clearance and bein able to run 91 octane that's the highest I can find here at a gas station