I think you've found your niche with these "other guys " videos. Truly great content, especially for the guys who run this stuff and are tired of seeing small block chevy after small block chevy, LS after LS.. etc. Keep up the great work Richard, your viewers appreciate it. 🍻
Torquemonster440 , I totally agree with you comments. I’m not knocking the merits of GM’s SBC or LS engines. They both have unique qualities and potential. But with the over abundance of redundancy in regards to the endless flood of information available to illustrate the latest ways to flog the shiny new valve covers on the GM engine of choice, I would imagine that almost everyone would welcome a change of pace. It’s enough to drive a person insane. But in the name of good mental health, Dr. Holdener has achieved some amazing results with this big Cadillac power house. That’s why four out of five doctors recommend a daily dose of Holdener. It’s definitely not business as usual.
WOW! the Caddy did not disappoint with 675 F tLbs of Stump pulling torque. That set of collector extensions finally got rid of the dip in the torque curve at 3500 RPM seen on every other combination. This would have been a FUN engine to drop into my old 54 Chevy pick up. Plenty of room - even with all them spacers.
@@erandy0240 The irony of some people!!!! Wheeew I just dont know how anyone could possibly take anymore of this! WHHYYYYY!!! I would much rather pay 2 or 5 times as much to build any other engine Just so I dont have to hear the word LS again! Ohhhhhh its so horrible!!!
It's just the thing for moving eight tons of school bus around.. it's no wonder these engines can make a DeVille so hot on the strip. And yeah, back in the '90s when I did this conversion I was met with a lot of discouragement and negativity from Chevy-centric machine shops. I didn't want a valve sucking, crank breaking, bearing spinning big block Chevy. Back then, all the big gasser medium duty trucks were in the wrecking yard for the same thing-spun main bearings in their 427s. Meanwhile, I had a yard full of Cadillacs, so my buildable core was free :-D None of them had spun main bearings. There was no meaningful internet back then, so I had to make all the expensive mistakes and learn the "old fashioned way" but once I got it right, it was worth it. I'm so glad channels like this exist now, so people don't have to learn the hard way like I did.
This progression is one of the best I've seen showing how much you get out of incremental upgrades. Helps a person decide how to get the most for their budget.
That was Awesome Richard.!!..You made Some Monster Power with that 500 Caddy...But Get some Valve spring and a Solid Roller lifter in that Sucker...id rather see 800hp NA.. than 1000 with a turbo... Id be proud to put that Caddy in any one of my street Cars...Great Job.. 👍🇺🇸
The aluminum heads are a work of art! Glad you didn't run the Q jet again and make it more famous, keeps the price of them at the swap meets at $25.00 for me.
You got a great man to assist with this build. I have enjoyed watching the Caddy pull some absolutely awesome torque and hp umbers. Thanks for sharing.
Very fun, Richard. Still more proof that an engine is as engine and they all work the same. Physics are physics on this planet and any engine can be a performance engine PROVIDED that you can feed that big air pump, all things being equal of course. Mo cubes, Mo air, Mo RPM's, Mo gas is MO BETTER!
Well that does it, I'm throwing away all my BBC stuff and getting an old Cadillac engine. It has to be cheaper, at least for the basic engine. Awesome power out of an engine that everyone, except Richard, ignores. We would never have known all this goodness if it wasn't for our number 1 engine dyno guy Richard Holdener. Thanks Richard for this test and all the ones you have done. I just love watching these, I hope you don't run out of engines.
I don't like tuning a Holley on the car it's abit tricky to change the jets. On the quadrajet you don't need to dump the gas when you open it and the secondary rods are easy to change.
Almost 800 hp floating the valves at 6500 rpm. Totally impressed. I’ve heard of a few guys messing with the big caddy engines but have never seen this kind of step by step power building on one. Really enjoying it. Impressed with the whole series. I hope you producing this kind of content. I’m in.
I remember when Potter was working on those boogie man heads and intake.. An amazing improvement over the factory port design,and an improvement over the bulldog heads. raising the intake runners by a mile helped so much.. I started to build a 472 10yrs ago,but never really got anywhere with it.. I didn't know cad company bought in or bought out Potters
What's impressive about this engine is that it's making that power with the mechanical water pump still equipped. This is a very honest 770hp. The 665 foot pounds is 1.33 foot pounds per cubic inch. It doesn't get much better than that!
way to represent the other guys! this is the information you just dont find anywhere else except entusiast forums, for us that is partially "abandoned" by the aftermarket companies that seems to cater 90% of their cataloge to small and big block chevy. Keep up the good work!
After building three of these, I'm pretty familiar with their capabilities. Very nice to be able to watch this step by step process, though. These latest aluminum heads are pretty good now. Redesigned in conjunction with Edelbrock I believe. They are still prohibitively expensive though. Around $4,500 per set, the last time I checked.
Most of the other Cad test i have seen have been less than exciting. This one was exciting and brought the kind of power out of the old Caddy that i always thought was there.... and then more !
Getting into serious hp category! Can’t wait to see the boost numbers-but guess we’ll have to... This is great stuff, Richard! Thanks to you and the ABQ guys for all this thrashing for our benefit. Don’t forget to get some sleep and stay safe out there!
This is such a fun series to watch! It really shows how all engines are inherently the same and generally like more head flow and more cam. Yes to the large cam with the ported stock heads! 👍🏼👍🏼
Thanks for something other than a ls turbo. These are the combinations worth reading and watching. Surprising power. Always wondered about the oiling situation with these engines and engine speed over the journals but I guess this is not a issue lol.
The single plane manifold looks like you could run a LS type fuel system if you to do some mods ! Power yikes , valve float hmm! Not sure what spring psi. Means other the it helps keep things from smashing the Pistons & to much psi. can tulip a valve in hurry. I'm unsure if you have done video on valve spring set up or not. Thank you for your time and energy towards the videos & everyone involved & I'm sure there a few people that help out.
Hey Richard, it would have been great to see how much gain you would have seen if the exhaust was ran outside of the Dyno room and a fresh outside air stack leading to the carb. I ran a fresh air stack to a 2 four intake once on the Dyno and picked up 50HP! compared to the heated Dyno room air. Although it was a small Dyno room, but our exh was ran outside. Just the engine and header heat. Thanks again for your time and knowledge. Dan
Richard this is David Bates from Montana I usually talk to you about 2.3 l Ford engines but today I want to suggest some boost on that Cadillac 1 single turbo or maybe two I think the viewers we would like to see this thing make serious torque add some horsepower large cubic inch displacement some boost added I believe this is what the viewers would enjoy I really enjoyed this video
Although mine is bone stock 30k mile take out, the. Best thing I ever did to my old c30 was put a 500 caddy in it. Daily driven, decent mpg, and can pull a car hauler trailer all day.
Great job, I’m glad to see you back to testing! Keep up the good work. I hope your channel takes off for you, these are the kind of real world tests people need to see what actually works and what doesnt
Awesome ,Unlock The quantum Power within !!! As a side note CAD Eng, Maybe first production Mod ....Motor V- 12 They Had big plans . WORLD CLASS .!!! Make 4 Digit POWER .LETS GO ! VOTE FOR FOSSIL FUELS & AMERICAN DREAMS COME TRUE LIKE THIS CAD-ADVENTURE !!!
We have a love for our caddy 500 engines on our airboats here in fla we run them 3100 rpm max the prop at 72 in will go super sonic I would love to see some testing around them specs I have one that swings a 79 inch with big chamber heads but it’s had flat tops put in it it’s a 76 model it’s a go a we’re boat
Wish all the other guy’s motors had the sam treatment as this Cadillac. We got 675hp and 715lbft out of a pump gas stroker 505-440 with a street/strip solid roller cam. I love turbos but there really is no replacement for displacement, the throttle response and sound of NA big blocks is amazing.
Ive used hydralic roller lifter cam set up in the Big Cadoo and found that the hydralic rollers I bought from Howards Cams and those from Marty had to get minimun preload or they'd pump up at only 4500 rpms. After minimun preload it would Rev to 6000+. Look out Big Cadoo!
What a lot of information condensed into your videos on the Caddy engine that save $ and time for many of us. Thank-you. What I am surprised to see is the RPM's you ran it to, I was shy of anything over maybe 5,000 rpm. What was the situation with the rods & crank...stock, ARP, etc? I may have missed it. Again, thank-you.
This setup appears to really good we need Cadillac Tunnel rams to see if this thing can outrun that 540BBC you did all the testing on. It looks like it has the potential to do it. But this is stock caddy rods and crank right? Impressive!
Richard, one of your best Other Guys videos ever - that is really incredible! I'd love to see you include indicative component prices in these videos as well, that way people watching it could understand just how amazing one Other Guys motor might be versus the well worn path of a SBC/BBC/LS that everyone tends to use. Maybe some of these Other Guys motors are quite a bit cheaper by comparison and it'll change peoples buying behaviour :D
So close to 100 hp / liter displacement which is insane for a 70s boat engine. 6500 RPM with like 100+ mm stroke is impressive too. I wonder what it weighs with alu heads and what the final NA combo cost?
