Thanks David you are a wealth of knowledge. Anyone who takes engine building seriously knows you and are usually at the top of the list. Someday I hope to take one of your classes. Thank you for sharing your Knowledge with us. My condolences I heard about your partner Passing

My customary Half Cut Kiwi Emotions and a Tickford Tick to you Mr Vizard. My neighbour had a Camaro 1971 LT-1 engine, we purchased an approx 295degree at lash hydraulic custom cam in New Zealand in 1994, to replace the factory 326 degree solid cam, to boost the horsepower and torque. The actual cam master was ground to copy dyno plots from tests done on the Fuelie headed 350 LT-1 70 Corvette engine. It's amazing how cam lift profile have gotten so much less at lash duration, but so much more 50 thou duration. That's a lesson learned by Ford Australia in the 1971 351C 4V HO solid lifter engine, , when they took 10 degrees at lash lift off the K code 289 based profile used on the 340 HP Phase II engine, and gained 10 HP with a 300 duration at lash cam. It had 10 degrees more at 50 lift than the K code based cam, and a different exhaust duration and lift profile to the intake. When the 380 HP version was dyno tested for the Phase IV engine, it used the same cam and through only intake port bowl work, gained 40 HP over the wilder 1970 solid lifter engine. Tested in 2017, a similar 1977 Australian block 351 C 4V headed engine made 462 estimated flywheel HP. See "vb.foureyedpride.com/showthread.php?176600-351c-engine-build-in-my-73-Mach-1" "  The rear wheels/tires are 15x10's and tires are 295/50/15's. To wrap up this thread here is when I took the car to the dyno. I was very pleased with the numbers as it met my expectations for the build. 362hp/350tq at the rear wheels."

I’ve known Mike Jones for over 40 years. We went to High School together. He’s one of the best people you could ever to call a friend!

Thank you again for sharing your knowledge and experience.

Thank you for sharing this with all of us.

Just in time for some brain candy! Good afternoon to you all, I will now be enjoying your videos and passing it on when I am done.

This cam didn't lose much low end torque considering the 100 hp gain he got. Brilliant!

Thank you David.

Wildly interesting stuff! Thank you.

Thsts a great story. Love it!!!

THANK YOU DAVID

Good video David, thanks for sharing all your knowledge. I really enjoy reading your books, especially on the big block Chevy. I wouldn't run a flat tappet these days, too many failures. Like you said, run a flat tappet if you have too. Otherwise hydraulic or solid roller is the way to go.

Your the one who is King of turning the page.!!!

Good luck with your new channel

Thanks for sharing.

It's my neighbor Mr. Bob Russell from Oregon trail. He had aircraft piston melted down recast for model T. Don't think to hard David.

Thanks

Such a great Viedeo and amazing how much potential the stock engines have. If you know how

Howards flat tappet 112031-08 for a mild street SBC is a home run in my opinion. Best I've ever tried for that application. I'd love to see dyno test on it to see it's powerband. I chose it from the numbers lift in the high 400s of .480" and not to of an agressive duration 232° @ .050but still had some and fairly tight LSA of 108, ICL of 106, adv dur 285. those numbers with there description of "good for heavy vehicals" rpm range 2800-6400. That is conservative it makes great TQ at very low rpms in my application of 2.02 valved ported 76cc 993's, 9:1 355 SBC with an original Torker intake with 2" spacer anyway. I had a 2500 stall converter originally but I put the original V6 truck converter back in it just to realize the 2500 was not necessary for drivability reasons, I can mash the throttle from an idle and it will roar to life with enthusiasm smooth as silk.... And as a topping it has a beautiful lumpy idle. I'm not saying it's better than the one being recommended I'm just mentioning that its a gem I stumbled onto to, a cam that works great in a fairly common old school budget setup, It just seems like it covers about as many bases as one cam could. I wish I knew of a cam that would give me the same exact results in a HR for my 95 5.0HO. but open plenum carbed induction compared to ford's HO EFI setup is so vastly different its hard transfer results back n forth without going carb swap and I'm not doing that I'm trying to embrace efi for once...trying.

Mike Jones Camshaft Designs! These cams have 'lobes' of steeL.

I'm glad that you republished this video. The first time that I watched it, I don't recall seeing the cylinder head off mixed up boss. Is that cut section on your desk a piece of one of those heads? Regards Greg

Been looking for a cam for my stock(ish) 355 with 601 heads on it. The 601 flow very close to the double hump but have like a 54cc chamber. This cam sounds about perfect for my needs. I also want a rougher more aggressive idle.

I just have to comment to thank you Dave. You have made a massive difference in how I have built engines over my lifetime. From my early auto-grass cars built using your Austin Rover A-series book through to Honda builds using your B+D series book. Thank you for sharing throughout the years. Everything that you have said has worked for me and led to a good few championships being won, which I wouldn't have been possible (legally, lol) without you.

Big horsepower, Camshafts, bets. Sounds like a WILLING lift.

I would be very interested to hear your opinion of coatings such as Titanium Nitride, or the black diamond-like material for cams. I'm aware that DLC is used on some lifters. It seems to me that for flat tappet cams, the coatings would greatly reduce friction.

Dv I would like to see tests on the LSA of ls engines. I have lately built one and am impressed with it, it is a little power house

Could you explain the reason for the rocker ratio variation

How do I determine what LSA I need?? Thanks for the video!!

Can you study the 396 ci Ford FE Tunnel Port with a 4.25 and Ithink 3.5 stroke. There was a NASCAR engine in the late 60s that was astounding.

His name sounds Familia as I have had his Book "How to Rebuild the Small Block Chevy" for many years It appears he did not write "How to Hot Rod the Small Block Chevy" However

It sounds like you changed the rockers too did you retest the stock cam once you were done

I would think you could easily be up 10% on ftLbs with a good flat tappet versus hydraulic. Probably 15% on a Chrysler since you can be more aggressive with the bigger lifter diameter.

Is this a polished cam with hydraulic lifters ?

What would be a comparable roller cam? Wouldn't a roller cam even with a set of link bar aftermarket lifters be close or better using a roller chevy block? So stock double hump heads pocket ported or did you use larger valves?

What use is that power if its so high up in the RPM band? Need down low torque and HP!

Wondering your thoughts on all the flat tappet lifter failures these days. Referring to lifter faces pitting destroying the cam. Are all manufacturers have the same issue as the Biggest supplier?

I don’t know if David wants people to know or not. The young Woman he posts at the end of every video is his daughter..

What was the fuel in this application. 😎

How you getting 10.5 with a 14 cc dish

👍👍👍

🔔😎 YeeeeHaaaaw!!!

👍

Dear Mr. Vizard I have some questions regarding another topic - related to Buick/Rover 215 CUI/3,5 liter V8’s that are often used in Europe, where I life. Can you share experience about this engine and maybe even give advice about what to do when my project involves these parameters: - budget around 3.000 dollars for tuning (Stock engine as basis - 155 bhp twin SU’s) - high rpm wanted - 7000-7500 to hold gears for long - 0-100 km/h 1.st 2.nd gear mainly needed during narrow track courses - 250 bhp is ok - 300 would be super - As much diy as possible - replace with 300 CUI? Again Thanks for sharing! - BR - Peter from Denmark

These are the specs of cam that went into my 383 SBC, roller motor. Ported edelbrock Vic jr, 750 holley. It is an absolute amazing build. 280/284 @.006" 232/236 @.050" .360"/.360" Lobe Lift .576"/.576" Valve Lift 108 LSA

Ultradyne made some good cams with good dyno# they sold to bullet cams not cheap but they work

I looked up their prices and maybe I’m missing something but thy don’t look that expensive at sbout $300. That’s what thy have listed.

I had a bone infection, and ran a temperature over 107, as far as I know, the only remaining effect Is memory, I can be talking about something and completely forget what I was saying, my seeing letters backwards is worse, and forgetting how to spell things, a lot of things like that, I can see something on a shelf, and pick up the wrong thing, it's been years, I hope it doesn't progress, but the things I forget, are brought back at the strangest times, the things can not be related at all, it's strange, and I have feelings from thoughts, physical feelings,. And can be watching a video about atomic bomb test, and smell something hot, it's strange, and that works backwards also, the brain is very strange!

What is the lobe separation?

So you jumped through a bunch of hoops instead of building the correct combo .Thank you for all your research work.

So this cam is not a scam....😁😁😁

100hp yes, but at a higher rpm. I'm more interested in making more power out of a small block off idle to 3500rpm. Not at 5 or 6 grand. Cams just raise the rpms where the engine makes power. Only way to get more power at a lower rpm is increase the compression and build some cylinder pressure. Need torque at low rpm for a street truck engine and get mileage. My present 350 I'm going is a very short duration cam. Barely over stock and bump compression almost to 10 to 1. Small valve heads and ports and SP2P intake. See how it works.

Many sbc cams make about 200 hp over stock.

Harvey Crane may have lost $500 on the bet, but he received $10k worth of free advertising, no?

That's a dime per HP..... If that's the going rate I have a 69 Mopar B block I'd like 750 HP out of, $75 will get me there? 😂 😜

Your killing me I'm just a poor hot rodder I've never seen a 108 cam center line make power like a 112 -114 pat mussi rolling thunder cams for the street are 112 there made by edelbrock in my option I would never buy a comp cam ,crowed or crane would be my choice

Lolololololol. The combination just needed more cam, that cam is not going to give you that kind of gain on a mild small block.

Sounds good , but you came up short with cam spec's, If your gonna tell the watchers about a cam that gives a 9 to 1 350 engine over 100 horsepower, don't you think to prove yourself you would give us the spec's ??.. Sounds fishy to me.. what good is it to tell us that it could be done without telling us how. Giving part #'s don't help, sounds like your just selling stuff. "and they aren't cheep"

100hp cam Plussssss Worked cylinder heads New bigger carb New intake manifold Bigger roller rockers ratio Etc.... I thought it was literally just a cam swap. That would have been impressive lol