Andrews Cams

i was always told .418" was always the limit before you run into shim spitting problems. so any time i build a shim under set-up ialways go with a bit lowerlift. by the way the 3x cams are.418" 282 degrees of duration so they would be right at the limit i would want to use on a shim over motor

Reading all these posts i am freaking out.

I always called the bike the engine came out of my YEE HAW bike as i didn't ride it more than 100 miles a week so i could get my YEE HAWS out. I had a friend that has a "77" LTD and we would cruise town with open headers and on the main drag people would walk out to the curb to see what was comming. Just two old farts acting BAD.

I am going to heli coil all my cam caps and see if i can get a set of buckets filled and machined. Roy

nothing better than a couple of friends acting like teenage tools it is great.

APE Jay wrote:

larrycavan wrote:

APE Jay wrote:

Back in the day we had customers spit the shims with 3Xs and shim on top If you have the valve cover off, watch the shim as you turn the motor over. It will probably raise up out of the tappet opposite of the cam lobe. This is because the lobe id pushing the shim down into the groove on top of the tappet.

Should be used with shim under. set up.

Yes, I saw that happen on more than one occasion. There's a fix for top shim buckets to allow them to be run with cams like that.

The groove in the bucket can be filled up and then machined down flush with the surface. That works very well and keeps the handy shim on top setup.I don't know who does that anymore though.


Larry C

We used to silver solder the grooves in the buckets then remachine them to get rid of the groove. It was very tricky to do and not distort the bucket skirt.

Roy- action fours used to do alot of that. I sent them an email and asked if they still do. He said not in the last 15 years but you may want to try this guy (email)jordanator@sbcglobal.net
hope it helps

Can't you just use kz650 buckets & shims? What pistons are you running with those cams?

I was at the metal supplier today and they do not keep silver sorder anymore. I was going to get the supplies and enough buckets with some extra and take them to the machinist. I find out he soes not do maching work any more.

Thanks for the contact. Roy

Z1900, gave my shim under bucket setup away many years ago.

I am running 12 to 1 pistons Huge dome. Roy

I am running 12 to 1 pistons Huge dome.

What bore size? If I were you, i'd just get the shim under assy. to be on the safe side. I'm sure you can get them used for under $100.

z1900, this is a 1075 engine. I would rather go down in cam size than go to shim under bucket. I like things simple.Roy

I have been learning about silver sorder since this discussion.

I took a head to the shop today for some work and i asked them what they knew about silver sorder. They use it all the time!!

I am going to let them fill the gap on two sets of buckets and see how it goes. Roy

Arter considering all the input on the big cams and searching diffrent sites for info on the biggest cam i could run with shims on top I assembeled the engine Saturday with the Andrews 3X cams.I ran that engine for four years and turned some serious RPM's. I helicoiled the cam caps. I believe i bought every helicoil that size in the town.

I have been working on the wiring last night and today.After i got the wiring back to the way it came from the factory the engine lit up. It has been a long time since i heard the 1075 crackle. Over six years.

I have been hitting Jeff up for parts. I'll have to call him again and order some side covers and a left hand control.

I have a couple of fat tanks that has the round petcock and i will install one of those instead of the tank i have now.

It has been pouring down rain all morning and this afternoon but am hoping for a clear spell to take a short ride.

good to hear roy, im working on getting my z1 to fire over in the next week or so......so can i expect the 1075 crackling at mid ohio this year?