Recent content by YO7_A66

My question is not about preload or lash, its about the relationship between the adjusters after the preload or lash is set. Do you guys prefer to purchase custom length pushrods to keep this relationship close, or purchase off the shelf lengths as long as they are within a turn or so from each...

These are Yella Terra, and they give their setup spec a little different than other brands. They suggest keeping the adjuster less than 2 turns out. The adjuster cup end diameter is recessed into the rocker body and this diameter is a very tight fit in the body of the rocker. This helps support...

I am installing my new push rods and adjusting the lash for the break in on my 340/420. I always start out marking my adjusters at the 12:00 position with the adjuster fully seated. Then I count the turns on the adjuster while I am adjusting the cold lash, and I write down the adjuster turns...

I just finished test fitting my Mr Gasket #5840 intake gaskets and found the same issues as mentioned above. The China wall cork gaskets measured about .19” thick and would not allow the intake to sit low enough for the sides of the intake to sit on the head mounting surfaces. I too have filled...

A quick glance at my recent machine shop bill for my 340/420: (I gave him the block and main bearings only.) Machine work: Clean & Mag $125 Bore & hone $300 Deck Block $175 Assembly and parts: My shop would not allow me to buy my own parts. He wanted to choose the parts if he was doing the...

Pushrod Series – Manton Pushrods [email protected] Just for a reference, Manton sells an 11/32" x .120" wall 3 Series (or a much stronger 5 series 11/32"). I was just quoted $264 for complete set of the 3's. That price includes three different lengths that I wanted. They sell them...

For heads on valve spring removal, I bought this tool. I have used it several times now and it works great. It you can make one at home, this is a good design.

10 weeks of back order and the springs arrived today!! Good luck with your parts my friends

Thank you everyone. I will not use a lockwasher and the engine will be broke-in inside of the car. I have thought about snugging it now while on the stand and then finishing the torque once I have it in the car. But I am afraid that I will forget. I like the note on the windshield idea! I...

I want to install my harmonic balancer this weekend on my 340/420. I have the balancer installation tool and I have torqued the balancer bolt with the engine in the car a handful of times. I made a bracket that bolts to the balancer, and rests against the k-frame to keep the crank pulley from...

I use this ProGear set mentioned above (Hughes Link). https://hughesengines.com/Index/products.php?browse=category&level0=QS0gU21hbGwgQmxvY2sgIkxBIg==&level1=VGltaW5nIENoYWluICYgQ29tcG9uZW50&partid=23311

Anyone running into issues with valve spring delivery dates? I ordered a set of Manley springs/retainers/locators 5 weeks ago and the retainers/locators delivered in 3 days. I am now approaching week 6 for the valve spring back order and still have another 4 weeks to go. I have 4 other valve...

I am using aluminum heads and water pump. The heater core and the radiator are the stock type replacements. Thank you everyone.

I am thinking ahead of what type of coolant to run once I get my 340/420 back in the car this Spring. The engine was completely cleaned, and my radiator and intake were cleaned out too and sitting dry. I will be using new radiator hoses, and then the only other pieces are the heater core/hoses...

Cometic makes a #C-5457-036 (4.125" bore x .036 thick) for a reference.