As someone who has early Parkinsons symptoms, and who already loves your stuff. Thanks
@GregQuirin
7 ай бұрын
No Problem Buddy! Lots more to come on this special build in support of Parkinson's Thank you Greg!
@thatlangley0715
7 ай бұрын
This is one of my favorite channels on KZitem. I would have loved to grown up around someone with your knowledge and experience. It's amazing to see the things you have been able to accomplish that others have only never even dreamed possible. You amaze me
@GregQuirin
7 ай бұрын
Wow, thank you! Such a nice compliment! Thank you for subscribing to the channel! Greg Q
@ryantyack7389
7 ай бұрын
I'm so glad you're documenting this, mind blowing creativity!
@GregQuirin
7 ай бұрын
Thank you Ryan!
@garyplewa9277
7 ай бұрын
No worry about us enjoying this and your other videos Greg, thay are fantastic. Thank you for making them. It must be an honor and priveledge to visit and document these two legends in the hot rod industry. What talent in both innovation and manufacture of complete engines, from scratch and modifications to existing designs. Totally fascinating!
@GregQuirin
7 ай бұрын
Thank you Gary! I try my best to capture the amazing talent happing in Pete's shop.
@edsmachine93
7 ай бұрын
Very interesting. These guys are always tthinking out of the box. I really admire their ingenuity.👍👍 Thanks for sharing.
@GregQuirin
7 ай бұрын
Our pleasure! thanks for Watching!
@danromeo6571
7 ай бұрын
These guys fascinate me with their knowledge and workmanship !
@LimestoneCoastCustoms
7 ай бұрын
Thanks Greg, More great content!! 👍Having had a connection with Parkinson's (my ex- business partner) & recently a fellow salt lake racer who I built a streamliner & campaigned it with who is unfortunately now in full time care, I can see this being for a worthy cause that's for sure & even though we are in different countries, any research is great!! Cheers!
@GregQuirin
7 ай бұрын
Stay tuned, I will be putting together the second part of this video, and you will learn more about how the vehicle, a 32 Ford roadster, will be auctioned and the proceeds will go towards fighting Parkinson’s and assisting patients . Thank you- Greg
@GreggeSB
7 ай бұрын
Love the channel. So much history made in one shop, its amazing. Pete and Kevin have forgotten more speed secrets than most anyone has or will ever know. Thank you for documenting their exploits for the future. It's a shame Pete had that devastating fire, a ton of good knowledge damaged or outright destroyed.
@GregQuirin
7 ай бұрын
Thank you for watching the videos. Yep the fire was a major set back for Pete and Kevin.
@Mykytys
6 ай бұрын
These gentlemen and this place and all that is here, this is larger than life
@johngato737
7 ай бұрын
Frankly I’m humbled I even get access to content like this, let alone for free. Thank you for doing this.
@xozindustries7451
7 ай бұрын
It’s so cool what these guys can accomplish together. It would be interesting to see how much power it makes on a dyno compared to the regular pushrod cam setup with the same specs
@GregQuirin
7 ай бұрын
I will try to find out if Pete and Kevin have any data on the improvements. I know that the previous engine designed the LT1 Chevy 350 which they converted to overhead cam in the same manner produced significant more power.
@Roddy_Zeh
7 ай бұрын
These 2-valve heads...along with a flatplane crank, made me remember the TVR's AJP V8. Obviously a totally different engjne, that had a 75-degree angle between the cylinder banks, not to mention it was 4.2 to 4.5L, but still...made me imagine it as sort of a 'tribute' to the AJP. Congrats! 👏🏻
@erasethepatterns1
7 ай бұрын
Best content on youtube, hands down.
@GregQuirin
7 ай бұрын
THANK YOU VERY MUCH!
@stevewilliams2498
7 ай бұрын
Looking forward to the next instalment
@GregQuirin
7 ай бұрын
I will try to get another video posted soon! Thank you Greg!
@prtyof4156
7 ай бұрын
Hopefully, the front dress and the distributor are discussed in the next video. Keep up the good work Greg!
@MJPilote
7 ай бұрын
Love the content, you always get a like and a comment! Kevin and Pete deserve to be recognized! The valve train kinematics are way better without the pushrods, lifters and rocker arms. Bucket and shim is way lighter! Freeing horsepower and making the engine rev happier.
@GregQuirin
7 ай бұрын
Thank you and yes your right! This valve-train set up is way more efficient and the secret for more HP.
@mikeh.753
7 ай бұрын
I knew a guy in southern California that built heads like this for the Ford flathead. He set all sorts of records. His name was Vic Smalldino.
@GregQuirin
7 ай бұрын
I dont know that name, I will ask Pete and Kevin if they know of him. Pete and Kevin did do an overhead cam conversion on a Flat Head Ford the video is on the channel.
@mikeh.753
7 ай бұрын
@@GregQuirin cool.
@stephencurry8552
7 ай бұрын
Awesome! These two men have forgotten more than I will ever know about machining and materials. Which is oddly satisfying for some odd reason.
@GregQuirin
7 ай бұрын
Glad you enjoyed it!
@hondarideralex
7 ай бұрын
these guys are gems. Thank you for sharing these legends with us.
@GregQuirin
7 ай бұрын
You're welcome!
@The-KP
7 ай бұрын
Beautiful work, for a good cause. Kudos fellas!
@jonsetzer9556
7 ай бұрын
Those guys are amazing
@TurbineResearch
7 ай бұрын
These guys are incredible. Thank you for sharing their work with us ❤
@GregQuirin
7 ай бұрын
Our pleasure! thanks for watching!
@stevechaffee2360
7 ай бұрын
Wow! I want one! They even figured out a way to find a use for those funky 98' 806 heads. Think I remember something about them also needing a different mls head gasket then the later 99' and up heads because i think they were notched funny or something. My buddy used the later gaskets and didn't know it till he was done and started adding the coolant, Then she started pissing. he was so mad. lol
@davidaarons2488
7 ай бұрын
Thanks for your work of showing their work
@GregQuirin
7 ай бұрын
No Problem! thanks for watching!
@gazza116
7 ай бұрын
these guys are so clever
@mrdougc905
Ай бұрын
Liking your videos Greg! I guess it would be a project, but could you sort your videos into playlists?
@kleenhall6885
7 ай бұрын
These guys are amazing
@GregQuirin
7 ай бұрын
Yeah they are for pretty amazing and talented.
@tiitsaul9036
7 ай бұрын
Interesting as ever. I wonder what's the rpm potential of this single over head cam LS. Pushrod LS with upgraded valve train reach 7krp no problem.
@mpetersen6
7 ай бұрын
Other than the "wow, that's neat" for the street I really don't see any advantage. Now for trying to set LSR records that's different
@3xeplodng_3agle_studios
7 ай бұрын
And there've been some to hit 8500 to 9k with forged/lightened internals and a few other goodies I can't quite recall at the moment.
@madrew2003
7 ай бұрын
Is the base circle large enough to match valve lift for the pushrod and rocker setup? If not, it seems not using a finger follower means less lift and flow but improved valvetrain stability. I'm curious how it will compare to standard with same valve timing. LOVE, LOVE, LOVE the LT5 head on the LS block that they did. Have Kevin and Pete played with Porsche 928 heads on anything? I seem to recall somebody did something back in the day on a Chevy Big Block if my memory is correct. So glad you are covering what these legends are doing. Really cool stuff.
@GregQuirin
7 ай бұрын
To answer part of your question, Yes, Pete and Kevin have adapted Porsche 928 heads onto a Chevy big block which is one of Pete's street rods. We will try to feature this car in the near future. I believe the 928 Porsche 4 valve head may have sparked some curiosity and might happen to be one of the reasons behind some of these interesting builds.
@madrew2003
7 ай бұрын
@@GregQuirin thanks for the feedback!
@chrisstavro4698
2 ай бұрын
What are they hoping to achieve? The LS7 valvetrain is good to 8200 rpm with high lift.
@RodneyHayes-d3y
7 ай бұрын
Their minds never stop working.
@GregQuirin
7 ай бұрын
Yep that's right always building something!
@watahyahknow
7 ай бұрын
the camboxes does make the block wider so you might get problems getting at the sparkplugs or the headerbolts if its build intoo a normal car maibe for putting it intoo a lake racer you could swap over the heads left to right to have the exhaustports on the inside , build the headers on top of the engine and build two log style intakes on each side of the block i think there be less hot air arount the intakes and the fuelrails and you can cross over the scaveging between the two cilinderbanks on the exhaust side (8 intoo one setup) though the headers will be a snakenest and you have to be a contortionist to reach inside there and get at the sparkplugs wish will move intoo the valey of the engine too just looking at a set of heahgaskets for the ls1 the boltpattern around the cilinders is symetrical , its just the pushrod part on the heads that sticks out with the overhead cam you dont need those holes
@GregQuirin
7 ай бұрын
Currently it resides in a 32 Ford and everting is accessible. Pete's newest engine design with the Streamliner will have the engine partially rotated on its side to allow the headers to be tucked inside. We will feature this pretty soon when he starts the engine mock up in the race car. thank you Greg
@DavidB7474
7 ай бұрын
I’ve seen the mercury marine 7.0 liter dohc engine. It’s crazy.
@ianbuilds7712
7 ай бұрын
Is there a real point in going ohc on an ls? as a "mild" 2 valve?? Cons: loss of roller lifters (flat tappet cams are limited), loss of rocker arm ratio, complex oiling, 1/8 mile of timing belt (in this case unprotected), added weight, loss of that compactness that allows the ls to fit anywhere, 3 extra oil seals, does the stock water pump work?... Pros: it looks pretty kool, potentially can rev higher, the cam lobes can potentially be bigger than the bearings which is really needed just to get to a point where its comparable because we lose the rollers and that rocker ratio...
@nerd1000ify
6 ай бұрын
The upside is you can use much lighter valve springs for a given RPM, which reduces friction in the valve train. In principle there is another perk, no need to accommodate the pushrods on the intake side gives much more freedom in porting. You could fill in the pushrod tubes with epoxy and completely reshape the ports if desired.
@ianbuilds7712
6 ай бұрын
@@nerd1000ifyimportantly Ik this is an exercise in mechanical showoffie artwork and really just a BC we can engine and not done for practicality and def not cost effectiveness lol... all that is true in principle but rollers and rocker ratio mitigate so much of the issues (more lift for less cam and more importantly the spring has that same ratio of leverage when closing).. on the ls engines the pushrods arent really a factor in porting like on older small blocks... Especially at the power level we see here. The ports are already too big for as big of a valve as u can squeeze in there plus gains are usually had raising the port not widening... U ever see lifter springs? They are pretty cool they sit under the head to aid the valve spring and really help with pushrod wear on high rpm motors and we have done a lot like that to make pushrod motors really sing over the years... Im just saying the real gains of ohc are with 4 valves and/or Hemi or at least true cross flow and definitely not with a "conventional" pushrod valve layout.. On the friction point, in this case I cant imagine giving up rollers in favor of a mile of belt, 2 extra cams, tensioners and oil seals can result in a net gain on such an already optimized platform..
@nerd1000ify
6 ай бұрын
@@ianbuilds7712 Well for this build sure, it's clearly a 'for-show' engine. But you can certainly get benefits from going SOHC even with a 2 valve non hemi design, else nobody would do it! You can even find non-crossflow diesels designed this way (e.g. Renault F9Q, an awful engine in many ways but they did it...). If you were building a clean sheet design you could pretty easily have roller rockers running straight on the cam to give you the same benefits of rocker ratio and low friction without the pushrods in between. E.g. the Ford Modular 2V has SOHC with roller rockers and a 1.75 ratio. That being said, you can get 80% of the way there with an optimised OHV setup, and the results speak for themselves in the LS.
@HappyHarryHardon
7 ай бұрын
I’m building a 12 port DOHC head for a 6 cylinder motor soon. I’ll be using needle bearings for the cam journal s I can get away with splash oiling.
@Drunken_Hamster
7 ай бұрын
My ideal setup would be a 3-valve SOHC with twin-spark so the valves can be as big as possible and so there can be a small quench area behind the intake valves. Engines with a single exhaust valve just sound better to me than engines with 2. They're deeper and less raspy compared to 4v engines which are higher pitched.
@shogunbillings9529
7 ай бұрын
What material is or was used for your camshafts?
@kevinbraun6272
7 ай бұрын
8620
@mehrshadvr4
7 ай бұрын
I want to see dyno numbers.
@jamesnash1180
7 ай бұрын
GM NEED YOU GUYZ😮
@GregQuirin
7 ай бұрын
GM would never embrace their out of the box thinking and would probably be all screwed up with red tape and bureaucracy. However they are very successful with what they do! Thank you Greg
@QuarterD25
7 ай бұрын
Do you guys ever need help? Or want would you guys ever want to pass along some of that amazing knowledge?
@boomps447
7 ай бұрын
Hemi head 4 banger, in your future ?
@stevewelborn8744
7 ай бұрын
Amazing
@GregQuirin
7 ай бұрын
Thank you! Cheers!
@jareknowak8712
7 ай бұрын
👍
@johnarnold893
7 ай бұрын
Why, the LS is a great engine without adding a bunch of complexity.
@GregQuirin
7 ай бұрын
They have done a lot of the Chevy 350 LT1 overhead conversions with increased HP. I dont know the HP data for the 2 valve LS style conversion however my guess is it is greatly improved. Thank you Greg
@captarmour
7 ай бұрын
Great Video! Tuners spin the OHV Cam-In-Block motors to 9000 rpm. OHC makes the engine bigger, heavier, more expensive, more complex and more difficult to work on. Give me an OHV everyday, unless I'm tuning for over 9000rpm. My 2 cents
@GregQuirin
7 ай бұрын
Thank you and I can understand your 2 cents, however Pete and Kevin know what they are doing when it come to this kind stuff. Their engines are designed with one thing in mind = more HP. They have 37 land speed records in the books. They have done this for over 30 year’s. If OHV cam in block engines make more more power, the team would sure welcome some more competition on the lakebed. Complexity doesn’t carry any weight for Pete and Kevin they thrive on complex engine designs. Thank you!
@captarmour
7 ай бұрын
@@GregQuirin Thanks for your reply. I have looked at most of Pete's and Kevin's videos and have incredible respect and admiration for them. If I sounded like I didn't, I apologise. OHC design's main objective is to reduce reciprocating mass in the valve train to increase rpm. Other benefits include better valve placement. That said, for decades Triumph motorcycles used Twin Cam OHV designs which may be able to activate 4 valve heads. What confounds me is that 4000 rpm diesel motors are being designed with OHC! I just pulled off my Land Rover TD5 cylinder head for the second time and wished I did not have to mess with going under the vehicle to lock the crankshaft in place, and then mess with removing the cam sprocket and securing the cam chain...some time ago on a prominent show, think it was Autoline News, it was said about the chevy v8, 'if OHV was now a new technology, everyone would be praising it for its light weight, compact design, and reduced manufacturing cost!' The Chevy V8 is probably the most tuned motor, some examples pushing 5000hp, check Steve Morris videos. Much respect to you GregQuirin
@nerd1000ify
6 ай бұрын
Another major advantage of OHC designs is you don't have to squeeze the intake ports in between the pushrods, so they can be bigger and a better shape. Obviously that's more significant for 3 or 4 valve designs, but it still helps on a 2 valve head.
@captarmour
6 ай бұрын
@@nerd1000ify don't get me wrong, I love OHC/DOHC! For LOW RPM motors like diesels I prefer OHV mainly because they are lighter more compact easier to work on and less expensive. In fact for a VERY LOW RPM motor, I even like Side Valves if combined with a big Turbo!
@nerd1000ify
6 ай бұрын
@captarmour Yeah all methods have their pros and cons. I think diesels tend to use OHC mostly because they usually use swirl ports which breathe worse than the regular ports of spark ignition engines, so they need all the help they can get for airflow. Fun fact, there have been 4 valve per cylinder OHV engines. For example the Bristol Mercury and Pegasus radials used by the Brits during WW2. You can't practically make a OHC radial, so they had a system where each rocker actuates two valves at once. After making those oddball designs Bristol went really crazy and started building sleeve valve engines, which are a whole different story.
@joseph317
7 ай бұрын
How can the cam be ok with it rotating on the valve that looks like it's going to chew it up
@GregQuirin
7 ай бұрын
This top end design is very similar to Volvo or Toyota with the buckets over the valves. They’re not direct acting on the valve stem they’re direct acting on the bucket which rides over the valve. This is a common design on many OHC engines today. Pete happens to use Volvo buckets for most of their engine builds. Thank you Greg
@joseph317
7 ай бұрын
@@GregQuirin thanks very much for responding, l have always had in mind to convert holden v8 5.0 to a double overhead cam with a hemi chamber but that's a completely different head. Can l ask why you have eliminated push rod system .
@GregQuirin
7 ай бұрын
Pete and Kevin do this for landspeed records, most of the cars on the lakebed are using push rods. There is a 20-30 percent power gain with higher revving 4 valve OHC engines Pete and Kevin build. That’s pretty much why they do this to all their engine builds. Thank you Greg
@PiDsPagePrototypes
7 ай бұрын
7:59 - yeah, that call sounds like a scam. Chrysler did do a four-valve quad cam 426, back when Ford money was trying to get the rules changed for NASCAR, with Chrysler calling their bluff and showing if NASACR let Ford three-valve head in, the MoPar drivers would have four valve heads supplied. NASCAR mandate 2-valve's and pushrods from that day onwards. The Quad Cam Hemi was then rumoured to go to drag racing, but NHRA put the foot down on those for safety and power at the time. There has been Aftermarket Quad Cam 48 Valve Hemi engines in drag racing since, notabley the McGee engines, but the number of moving parts ends up making them more time consuming for the between-heats-rebuilds. The 'Factory' Quads Cam heads never left Chrysler ownership.
@GregQuirin
7 ай бұрын
That’s awesome information. Pete has some of the original Mosher 4 valve heads from 1970 my understanding they were developed for Indy . The Mosher was used on a Chevy Small block.
@PiDsPagePrototypes
7 ай бұрын
@@GregQuirin Indy is one place GM has had decent success in Motorsport, and run programs that created world class engines - The Northstar V8 gets laughed at in streetcars, but the race version was a weapon! Later versions of that street version get dropped in to Fiero's and turn them in to supercar hunters. Then there was the Buick alloy engines, that ended up being the Rover/Leyland V8 from the road engine, and the Aussie Repco-Brabham Formula 1 engine from the basis of the Buick Indy program.
@gothicpagan.666
7 ай бұрын
Is there an advantage to this conversation, or is it because we can?
@GregQuirin
7 ай бұрын
Both, there is an advantage and HP gain. Then the uniqueness on a one off engine made by Pete and Kevin.
@gothicpagan.666
7 ай бұрын
@@GregQuirin Was trying to think of an engine that was available as a ohc as well as ohv both of which had been developed to the last enth, degree. Only one i could think of was the 1000cc Ford 105E unit. Seem to give 112-115 Bhp @ around 10,500-10,700 rpm against the SCA Cosworth conversation which made 130+ quite easily out at 11,500+. Past the rpm limit of my GB3C dyno.
@samstewart4807
7 ай бұрын
hi, Sadly I bet this engine does not make as much power as a rocker arm LS. Why? because that overhead cam does not have as much lift/ duration as a stock LS cam/ rocker system. I would really like to to see a straight up dyno text- say a good .600 lift LS cam and rockers against that overhead cam.. This might rev higher but I would be shocked if it made any power
@GregQuirin
7 ай бұрын
Hard to say I will see if they have any data from the previous 2 valve LS OHC conversions they have done. Thanks Greg
@PiDsPagePrototypes
7 ай бұрын
Power and Torque numbers improvement will depend on both the cam having a larger base circle, and the lower friction losses of the OHC setup.
@lassikinnunen
7 ай бұрын
The heads can be made breathe better with overhead cam, stop looking at just the cam specs. Thats why the cam specs are what they are as well. The valve actuation doesn't need to pass through the head and thats the main advantage of putting the cam there.
@samstewart4807
7 ай бұрын
hi the stock LS cam has a 55mm? base circle. Looks like the ohc has much less.yes they will rev higher longer but I would be shocked if they even made the same power as an LS with a decent cam. @@PiDsPagePrototypes
@samstewart4807
7 ай бұрын
how are the heads going to breath better?@@lassikinnunen
@edsoncaires5974
7 ай бұрын
É um magneto Mallory?
@GregQuirin
7 ай бұрын
Si es un tipo de Mallory no es magneto es ignicion de electronico
@thejerkbaitfishing5787
7 ай бұрын
There's Men are Guinness
@nickmudd
6 ай бұрын
Super cool, but why lol
@theratrace5826
7 ай бұрын
But... why?
@GregQuirin
7 ай бұрын
This is Pete and Kevin’s golf game. Pretty much has stemmed from their land-speed racing success. In this instance, they are doing this as a special one off Engine build, which will go to auction in a 32 Ford roaster to benefit Parkinson’s disease and research.
@theratrace5826
7 ай бұрын
@@GregQuirin why not use a simple LS crate engine? Unnecessary complexity, weight, and cost is what they now have.
@GregQuirin
7 ай бұрын
@@theratrace5826 - pretty much every hot rod at the car show today has an LS in it and little innovation and made from the Jegs and Summit Catalog . Pete and Kevin are on a different frequency when it comes to this stuff, they are the definition of true hot rodders. They have a lot of success and experience doing overhead cam conversions mostly 4 valve. Their complex engine builds have a proven track record and has elevated their racing performance in the Landspeed community. They are very different people and always thinking out of the box when it comes to engine performance and HP.
@oldschoolmotorsickle
7 ай бұрын
Greg, There are those that get it, and those that don’t. You’re getting a smattering of those that don’t. Then we hear from a dinosaur below who hasn’t heard the news about 4-valve vs 2-valve re: ultimate flow and power potential. He may be thinking of Top Fuel engines (2-valve, pushrod) having ultimate power, which is true, but you don’t see a lot of Top Fuel hemis on the street. Great channel, well presented, and many thanks to everyone involved.
@causeimbatmaaan
7 ай бұрын
Won't make much power with those incredibly mild cams.
@fantaseahorse4696
7 ай бұрын
4 valve will make 40% more power than 2 valve?????? That's not even close to being true. Cam in block is actually far superior to overhead cam for maximum power potential and far more durable. All of the most powerful gas engines on the planet are cam in block, 2 valves per cylinder.
@kevinbraun6272
7 ай бұрын
If that was true, why doesn’t formula 1 and Indy use cam in block engines? They are legal by there rules. Where as several classes take away cubic inches if you run overhead cam four valve engines. Seems like they are afraid of something!
@lassikinnunen
7 ай бұрын
Nobody would use overhead cams if that was true. Cam in block needs paths for the lifters and that messes with airpaths you can put in the head. Cam in block has been a cost cutting measure for a century. It also allows for a lower package.
@fantaseahorse4696
7 ай бұрын
@@kevinbraun6272 F1 engines only make 800HP. They are 3.150" bore. Small bore engines are great candidates for 4 valve chambers. But wait?!! They're obviously not great candidates 400cc intake ports. Now we see why the overhead cam is simply inferior and can never out produce a cam in block design. Camshafts mounted directly over the valve inhibits the angle and overall volume of the ports. 2 valve, NHRA Top Fuel engines are not valve area limited at it's 4 3/16" bore size. No need for 16 more of everything cam & valvetrain related. Also, 4 valve has nothing to do with overhead cam. We have plenty of 4 valve, cam in block engines in production. 2 valve v 4 valve chamber efficiency is determined by bore size. Valve area efficiency is determined by port shape & size. OHC can not compete, never, ever with cam in block. It's a matter of architecture. Cam in block is also much stronger, more durable and more reliable, again, due to it's inherent architecture.
@fantaseahorse4696
7 ай бұрын
@@lassikinnunen Actually, cam in block allows for a much better flowing head. That's their entire claim to fame. Camshafts directly mounted over the valvetrain limits the angle and overall volume of the ports. Pretty poor flowing cylinder heads comparatively.
@kevinbraun6272
7 ай бұрын
@@fantaseahorse4696 Well, we have set 37 records at Bonneville and El Mirage. Every one of them was previously set by a cam in block engine. We broke all 37 records with overhead cam engines. If what you say is true then no one should have any trouble braking our records.
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