Cylinder head modifications....

[Bugsmasher]

Yes some time ago. Most of my head work is from hands on and flow bench numbers....that's where the big headaches can start. Trying to concentrate efforts now on getting the case assembled and done. The heads are almost finished...yet to make valve covers. I need a day stretcher...day job keeps cluttering my fun time.

[thelostdrifter]

following... any updates?

[Bugsmasher]

Yes ... I have abandoned the tube insert idea in fear of it creating a problem. So with good intentions I am making a plug of solid aluminum to be formed to fit into the void and be welded securely where the original intake port is blocked off on the outside of the head. This way I can keep weld heat away from the valve seat and get a much more secure modification.  Trying to finish wings- engine case-  dealing with health issues and bills. I did find a source for 1.375" ally tube with a radius that would work.....but that goes back to welding near a seat- not doing that. They are a press fit on the walls of the valve seat. Been teetering the idea of getting a new head and starting from scratch.  But I have these in hand paid in full. I wish I had the time to learn sand casting .... guess I could cobble a CNC file for a head.....lots of time and probably wouldn't cool well as the V-dub's. I want to think I will fly it this year. I need a day stretcher......or stay up more hours.....
As for the flow data I will share. It is worth doing from that standpoint.  What it will yield.....hopefully more power and torque.

[Bugsmasher]

OK some progress has been made on the headwork. Turned off the plugs from T-6 and fitted them to the head. Now a little cleanup with a sanding roll then drill out to lighten . Preheat to 275 then weld port plug in place. Back to the flow bench when this is done and the numbers will be posted. I am going to flush mill the outside of the plug off , chamfer edges out before welding....it will be worth all the work. If you die grind a lot of material...take a lesson from me. Outside away from the house....blow shoes and clothes off before entering house. My wife hates a metal splinter stuck in her foot !