having an alum head made
- Thread starter jimmy
- Start date
He claims around 700.00 but we have to supply him with a dimensional drawing of the bolt holes, cylinder bores & valves. Plus he request a picture of the combustion chamber. He says he can fabricate a combustion chamber like the hemi/spherical design. That would be great. We can run any type of dome, raised, or flat type piston(s) of our choosing. The problem here is I dont have the means to get somebody to do a dimensioal picture. Any help would be greatful. Perhaps we can go in on the cost together? Let me know! A custom built aluminum head with deeper cooling capacity, finned (with the Edgy logo atop) and a hemi/spherical combustional chamber would be outstanding. Think of all the engine configurations we can achieve. Vinny
Sorry,I should have explained. CMM is short for Coordinate Measuring Machine, it digitizes and plots parts into a CAD(Computer Aided Drawing)file, so it can be interpreted by CNC machinery to then be manufactured. You could also do it with a milling machine that has a digital readout if you have enough vertical clearance to clear the top of the engine block. Most smaller milling machines don't have enough travel to be do this, so you might check with some machine shops that do industrial size jobs. Either way, you should be able to come up with a simple blueprint for giving you the critical dimensions needed to make your head with.
hi CNC-Dude. What Earl at Edgy Speed Shop is requesting as far as demensions go, is that he needs to know the the exact center points of the intake and exaust valves in relation to the combustion chamber. This way he will be knowledgable in knowing just how to make a pattern and then the mold for a head. He suggested to me that one way of doing it would be as follows: Clean a cylinder head good. Cover the combustion chamber with machinest dye. Remove the valves from the block, and also the pistons. Bolt the head back onto the engine block. Find a longer valve (in length) and the same diameter as the stock valves that was removed. Cut the head of the valve off and grind/machine it to a point making it a center punch. Place the valve into the valve guide. With the engine on the stand rotate it upside down. The valve (which now became a center punch) should make contact with the underside of the combustion head. By smacking (or hitting) the valve stem end it should make a center punch marking into the combustion chamber of the head. Do this for each valve (intake/exaust) and it will give you the center reference of each valve for each combustion chamber. Send him the head with all the valve indications that was center punched into the underside of each combustion chamber and he will be able to fabricate the pattern for the molding process. By the way I was wrong about the overall price. I checked my past emails from Edgyspeed and the fabrication of the head was around $1,200.00 total. The head will be made according to ones specs, it will be finned, polished, and with the Edgy logo embossed onto the top of it. If you want the head to be cc'd and squared/trued, it will be a lil more. I hope I explained all this correctly. If not Earl says to contact him anytime. Well, what do you think? Vinny
