LOL, its not a myth and please dont misinform other members not knowing any better. Do some research;

http://www.hotrod.com/techarticles/engine/flat_tappet_cam_tech/

 

It is a myth as related to synthetic oils. High quality synthetics (Royal Purple, Amsoil, Redline) have no problems with flat tappet cams.

If you actually read all the articles, you'll note they are talking about conventional (read: crap) oils that really have no business being used in anything. Break-in is highly stressed as well. Also, every article is talking about max performance camshafts with extreme ramps and excessive spring pressures. They are not talking about cam profiles that are similar to what anyone would see in the classic realm.

Only an idiot would believe a sponsored opinion-based article posted on the web. Read for context, and not just the summary.

 

I merely gave you the first link from my "favorites" menu so you could educate yourself. I can give you more info if you would like for me to help you out.

Synthetic oils is good in late-model roller engines, but flat-tappet older engines need a little "grit" in their oil for the lifters to "grip" the cam lobes and spin.

Oh, and onlyan "idiot" would put purely sythetic oil in their BB. Have fun with the rebuild!

 

A little grit? you serious? maybe you should do the research

 

Grit as in thickness, not literally you moron.

" = lack of a better word

Always look for the CI-4 or CJ-4 rating on the label.

 

Thanks for all the input. I have had my '65 now for 2 full weeks and i am so addicted to driving it. Sorry for the debate, I right now know no nothing about engines and the fluids and one day hope to even be able to jaw back and forth with you guys on with oil to use. Remember, eventhough you argue on the type, we are all Mustang lovers (and yes it's Saturday night and I have had way to may Captian and Cokes :-)

 

If your third statement above is true, coming in and calling people names, whether direct or implied or followed with a smiley is an interesting way to go about things. [sm=wtf.gif]

BTW, I just skimmedthe article you posted, but did they mention big blocks specifically or just flat tappets in general? I ask because you keep referring to big blocksspecifically (see your "idiot" quote above) and I've never heard that dino is superior to synthetic in big blocks.

Jeff

 

a moron? lol. im sorry if i hurt your feelings. I call my little girl a moron jokingly (i.e.smiley face) all the time when she goofs around, You silly goose. lol.... better?
The article is about flat tappets in general.
I speak of big blocks because ive been around them for long enough to know the best oil to use.
...didnt iJUST post this?

 

The article is about flat tappets with extreme ramps. The article routinely mentions the break in period. The article is an opinion piece paid for by Shell. Put the pieces together.

I generally put 200k+ on my big blocks. Always on synthetics. I've only had to rebuild engines that I buy from idiots that use conventional oil...

 

To 69stang390 your attitude needs a major adjustment. If you really want to learn get some respect for people. I have fired people like you on the spot.