Thread: Mechanical flat tappet cam

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Well why can't you guys read my mind when I was first typing it! lol Definilty didn't put that in my first post did I, sorry about that. But ya it's mostly comp vehicle now....

Originally Posted by Hoss Blazer

Well why can't you guys read my mind when I was first typing it! lol

It's all good, Hoss! I thought after the fact that you've had previous posts about the K5 being a bogger, but what with CRS and all....

Originally Posted by rspears

It's all good, Hoss! I thought after the fact that you've had previous posts about the K5 being a bogger, but what with CRS and all....

CRS and all?

CRS - Can't Remember S......tuff

Just wait until you're my age. You leave one place in the house to go to another room to get something. Once in the other room, your mind goes blank and you have no idea what you went after. Now, you have to go back to the place where you started to get a mental re-up on what you needed and mutter it to yourself over and over as you make your way to the other room again. I can vividly remember stuff that happened 50 years ago, but current stuff.......not so much. Sorry to sidetrack this thread........or did I?

were you up in hale mi .there is nothing new about the EDM lifters with a hole in them been using them for 12 years now with good luck before thats was jonhson lifter /crower were they ground a flat in the side of lifter it is more then just oil it is that many of the bbc stock blocks cam center and lifter bore angle come in to play as spring LBS move up cam wear can to. on a poorly machined block .like i said many times on here i do not fool around much with many flat lifter cam s in bbc i think we talked about you using the EDM lifters last year ? yes i knew you ran mud

So what would you choose then Pat?

i would use a solid roller as i built and been involved many engines for this use it.s no way close to what some think what you would use for valve train parts i built bbc that run in the 8000+. rpm range for year.s of use. one is the Time X engine parts need very good . i have used smaller solid roller cams and Psi springs that i could sell .on the springs you would need a min of 1.950to1.900 setup for the stuff i have but i am dealer for most all cams company and parts pm me on here or check out face book Mccarthy Performance or www.mccarthy performance.com if you want to talk about your build and what i can help you with

I'm into my second cam disaster in as many years. Big job cleaning up after a cam disintegrates. I'd use a roller. The oil we have now also destroys distributor gears. What ever you pick for a camshaft be sure to use the correct gear for it.

Al

when using a roller cam you must use the right distributor gear know the makeup of cam core gear. GM roller steel cam core needs a melonited distributor gear. after market all one pc steel roller core use a bronze gear .if a two part cam core with iron gear pressed on core or a S.A.D.I/Proferal core. stock iron gear .i never seen a gear fall apart from oil only . but added oil can be done by clocking #5 cam bearing oiling hole up to 12:00 clock . drilling a drain back 1/4 hole by boss of dist in back of block. use a Msd distributor has a gear oiler use the added o ring .work will need to be done to block . roll the dist boss in the block so O ring will not get cut . if the wrong gear was use on the distributor a cam core that was not made for the gear. things will not get along . cam end play is a big deal with a roller and checking the cam to dist contact pattern all plays in to how long a bronze gear will last . the make up of bronze alloy plays in to it as well as a HV oil pump