Well said Tim, maybe you decided this was not the vid for it cause the reasons you mentioned are spot on, but for those that really don't want to listen or think your wrong. One other reason for flat tappets not working on a roller is the ramp on an even milder roller cam is so aggressive that corner I'll say, will cut into the lobe of the cam. Good stuff, it will help 👍
The only thing I saw you missed for cam& lifters, please always remember to clean the lifter galley the lifter must move free it may or may not wipe out a cam but it'll sound like a rod knock. Ask me how I know. Great job👍👍🇺🇸🇺🇸
Thanks for explaining that. Didn’t know that info. Last year when I built my 360 I put in a Hydraulic roller cam $$$ because several freinds were loosing motors with solid lifters. 👍
Also worth mentioning that flat tappet lobes aren’t centered directly under the camshaft either. That’s to assist with lifter rotation. This is why you can’t use a flat tappet core for a hydraulic roller regrind. Only a little over the roller will be in direct contact with the cam lobe.
You briefly mentioned my one 🔥 BURNING 🔥 question. Why, does a roller cam cost two to three times as much as a flat tappet cam? I mean, i cannot see it taking two to three times the labour or material to produce one! Grrr! To the cam manufacturers.
360 cam vs 318 cam is there any differences between both stock cams ..my 360la has a 318 roller in it I’m currently rebuilding wondering if I should replace with an original stock 360 roller cam
@@SpeednDemonthey interchange, but you magnum cam will not drive a mechanical fuel pump or oil the LA shaft rockers. Hughes makes a special cam bolt and spacer for this application.
Tell me something you may know about the after market roller cams for the late LA and Magnum engines. If I install the cam from say Comp will I have to run a bronze gear on my distributor like you had to do in the old days? I know a lot of factor roller cams have a cast iran gear pressed on but I don't know about the after market replacement cams. Thanks, DC
With a billet cam you can also run a melonized gear. They aren't as soft as brass so last longer. They have only been available for about 8 years for Mopar SB n BB so I guess not a lot of people are aware. Hughes engines sells them. Billet HYd roller have been available with Cast gears. Not so common for Mopars. It's usually specified in the grind #. Most mild HYD rollers are cast anyways. With the more radical grinds that need more spring pressure is when a billet core is recommended. I just did a billet HYD roller for my personal small block Mopar that had a cast gear on but used a melonized dist gear anyways. Using some modern small diameter dual springs that were 2.2 pounds lighter over the previous dual springs used helps the small block Mopar HYD roller engine rev cleanly to 7400RPM. Even with just the standard non short travel lifters.
Okay then I have a question, I have an old 5.2 magnum 318 out of a 96 ram 1500. I changed the stock cam out for a flat tappet mild cam. Will I be able to run that setup even though originally I had a roller lifter n cam setup?
Flat tappet Camshaft usually comes with a lube, and it's thicker. It stays on the lobes better than oil. But there are break-in procedures and oil with high zinc or zinc additives that must be used, not only during the break-in but during the life of a flat tappet cam
Well said Tim, maybe you decided this was not the vid for it cause the reasons you mentioned are spot on, but for those that really don't want to listen or think your wrong. One other reason for flat tappets not working on a roller is the ramp on an even milder roller cam is so aggressive that corner I'll say, will cut into the lobe of the cam. Good stuff, it will help 👍
Yep, you are right, it would get ugly in a hurry! Thanks for watching!
Great informational video, Tim!
Thank You!!
The only thing I saw you missed for cam& lifters, please always remember to clean the lifter galley the lifter must move free it may or may not wipe out a cam but it'll sound like a rod knock. Ask me how I know. Great job👍👍🇺🇸🇺🇸
Thanks!
thanks for the Tips Tim. tips from Tim, I like it
😄
Thanks for explaining that. Didn’t know that info. Last year when I built my 360 I put in a Hydraulic roller cam $$$ because several freinds were loosing motors with solid lifters. 👍
Thanks!
Telling it like it is Tim.
Sadly, we may all be running Rollers before it is over.
And I still like flat tappets.
Thanks for sharing.
Take care, Ed.
Thanks Ed! To date, I've still had great experiences with FT cams, but my day will come I'm sure. Thanks for watching!
Solid lifter cams have a slightly different "ramp" than a hydraulic due to the difference in the way lash is taken up during operation.
Great video and great explanation Tim!
Thanks!
Great profile analysis, keep up the good content.
Thank you!
Love your videos, good education
Thank you!
That was a great explanation Tim!
Thanks Cley!
Thank you for the info Tim.
Hey! Take care Stephen!
Also worth mentioning that flat tappet lobes aren’t centered directly under the camshaft either. That’s to assist with lifter rotation. This is why you can’t use a flat tappet core for a hydraulic roller regrind. Only a little over the roller will be in direct contact with the cam lobe.
Great point!
Great video!👍
Thanks!
Well done!
Thanks TMM !
excellent explanation!
Thanks!
Good info!
Thanks Joe!
Just one of a few things people cant cheap out on
Thanks!
Good information 🤙🤙
Thanks!
Nice comparison
Thanks!
Great stuff!
Thank You!
You briefly mentioned my one
🔥 BURNING 🔥 question. Why, does a roller cam cost two to three times as much as a flat tappet cam?
I mean, i cannot see it taking two to three times the labour or material to produce one!
Grrr! To the cam manufacturers.
In the aftermarket world of roller cams, many are billet and that will add cost
Very well explained. Thanks
360 cam vs 318 cam is there any differences between both stock cams ..my 360la has a 318 roller in it I’m currently rebuilding wondering if I should replace with an original stock 360 roller cam
I think in the LA's, the 360 cam is a tad bigger. In the magnums, the 318 is a tad bigger
@@318willrun are the 90s roller la cams and 92 magnum roller cams interchangeable by any chance
@@SpeednDemon I put a '89 LA 360 roller cam in a Magnum engine BUT I used the LA front (timing cover, etc)
@@SpeednDemonthey interchange, but you magnum cam will not drive a mechanical fuel pump or oil the LA shaft rockers. Hughes makes a special cam bolt and spacer for this application.
Moral of the story is find yourself a factory roller block and spend the extra $ in the first place. They dont make good flat tappet products anymore.
Seems to be a problem these days.... Thanks for watching!
yes they do. howard cams.
Yes. And solid flat tappets are good, too.
flat tappet cams need zinc during break in
For sure! And after break in as well!
Tell me something you may know about the after market roller cams for the late LA and Magnum engines. If I install the cam from say Comp will I have to run a bronze gear on my distributor like you had to do in the old days? I know a lot of factor roller cams have a cast iran gear pressed on but I don't know about the after market replacement cams. Thanks, DC
If it's a billet cam then you need the bronze gear
With a billet cam you can also run a melonized gear. They aren't as soft as brass so last longer. They have only been available for about 8 years for Mopar SB n BB so I guess not a lot of people are aware. Hughes engines sells them. Billet HYd roller have been available with Cast gears. Not so common for Mopars. It's usually specified in the grind #. Most mild HYD rollers are cast anyways. With the more radical grinds that need more spring pressure is when a billet core is recommended. I just did a billet HYD roller for my personal small block Mopar that had a cast gear on but used a melonized dist gear anyways. Using some modern small diameter dual springs that were 2.2 pounds lighter over the previous dual springs used helps the small block Mopar HYD roller engine rev cleanly to 7400RPM. Even with just the standard non short travel lifters.
hey Tim what is it that you do sir for a living if i might ask.
I'll just say we try to make Ford happy !
Okay then I have a question, I have an old 5.2 magnum 318 out of a 96 ram 1500. I changed the stock cam out for a flat tappet mild cam. Will I be able to run that setup even though originally I had a roller lifter n cam setup?
What set up? You shouldn't run the rollers on a flat tappet cam if that's what you are asking.
@@318willrun naw I’m asking can I switch to a flat tappet cam and lifter setup on a 318 that originally came with a roller lifter and cam
@@alexanderisom9989 I've not done that on a magnum block. I'm sure it can be done. I know you can on a LA roller block
Great tech !!
Is general engine breaking oil is the same as your camshaft breaking oil?
Flat tappet Camshaft usually comes with a lube, and it's thicker. It stays on the lobes better than oil. But there are break-in procedures and oil with high zinc or zinc additives that must be used, not only during the break-in but during the life of a flat tappet cam
I'll never run a flat tappet Cam again!!
That is being said by a lot of people these days!
Thanks man
Hi hey you do lots of video on sb and poly dose anyone publish a rebuild book on poly im having a hard time finding one
I'm sure there something out there, but I do not have or know of a book dedicated to poly's
@318willrun thanks for replying being in new Zealand poly parts are hard to find ive got one to rebuild 313 and 318 blocks ive got most parts
@@Grandadsjunk I love hearing from different countries around the world. Thank You
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