500 CADILLAC-DIY BASIC BOLT ONS
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- Опубліковано 11 вер 2020
- FULL DYNO RESULTS-THE OTHER GUYS 500 CAD MODS. HERE IN PART 1 OF THE CADDY MODS-WE TESTED STOCK EXHAUST MANIFOLDS vs LONG TUBE HEADERS, STOCK INTAKE vs EDELBROCK PERF DUAL PLANE, STOCK CAM vs MILD PERF CAM. HOW WELL DOES THE OTHER GUY RESPOND TO SIMPLE BOLT-ON MODS? CHECK OUT THIS DYNO SESSION WITH THE CAD COMPANY!
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I've got a fever and the only cure is more cowbell for the Cadillac
Blue Oyster Cult has a nice Caddy limo on the cover of On Your Feet Or On Your Knees. Keep Rockin', they are!
Yes!yes!yes! More cowbell please and thank you
Paintnamer : You have been the Harvestor of My Eyes. Its a Cult of Caddy Personality..Which is Nice...399 hp with just 4200 rpm. Even nicer. Ohio George Montgomery was right on track starting with a Caddillac engine. He added a supercharger on his 390. Cant wait for the next Caddy Shack Instalment.
Love the "other guy" stuff. 500ft/lb at 2000rpm stock! Dayum!
And 550ft/400hp cam,intake,headers. Low rpm will last forever. What a under utilized combo. This old dinosaurs got heeeeps left in it!
Reading the article "Torque Pig" 23 years ago in Hot Rod Magazine showed a stock '76? 500 making 323 hp and 468 ft. ft. lbs. The '69 500 had the highest compression-10.5:1 w/ it's closed chamber heads. The '73 500 w/ open chamber heads had the best cam Cad used in the 472/500's.
I still have that magazine. They shoved that caddy in the BAD seed Chevette
@@beeterolds Ah, yes, I remember the Bad Seed Chevette! Blue? Having a subscription, the mag came a month early in June. I still have the receipt from the junkyard that I bought my 1st 500 in for $200 on 8/1/2000, an '81 Coupe that the previous owner had a '73 Eldo 500 (best cam Caddy used-longest duration) and '68 TH400 installed into. In '81 a stroked version of the Buick 3800-a 4.1, was an option and what the car came with. It also had corresponding 3.42 rear gears. The previous owner had smacked a deer and sold it to the junkyard. I changed the front header, radiator, fan and grille, and repaired the radiator core support...and drove it! I came up to a few vehicles like a 350 S-10 no problem!
I weighed the car @ 4220# on a Cat Scale. A '94-'96 Impala SS weighs within 10#, also @ just over 4210#. It is a B body. The Cad is a D body. The difference? A few inches in length for more rear leg room. Otherwise identical. So ALL Impala suspension parts interchange-including upgrades. And why my project is an '84 Coupe I went to FL to get. Plans are for a twin turbo 500 and 4L80E. The same is true for the Ford Fox body. The T-bird/Cougar is the same for it-2.4" more rear leg room than a Mustang/Capri. Over the next decade I acquired another 2 dozen more 472/500's.
@@patrickmcdonald3427 The 4.1L V6 was bored, not stroked. 3.8" vs. 3.965".
@@DeanMk1 My mistake. I thought more stroke for more torque. I didn't know that they overbored it 0.165". So there is that much material in the cylinder walls? Most blocks can't be bored that much. Cad 472/500 blocks can be bored .200" for a 4.500" piston but for performance use hard bloc the bottom half of the cylinders.
@@patrickmcdonald3427 It's usually cheaper to change bore size than to change stroke.
Changing the bore also has an larger impact on displacement, compared to changing the length of the stroke.
What usually happens with large changes in bore is that the cylinder walls are "pushed out" to some degree, but they're usually incorporated with a slightly thinner cylinder wall, too. Examples would be an AMC 401 and the 400 small block.
I didn't know the 425/472/500 block could be overbored that much. Thanks for the info.
I like seeing these big old engines come to life. Years ago I stuck a 72 455 olds rocket into a 80 Olds Cutlass. Stock the engine was rated at 400 horsepower and 500 foot pounds of torque. Talk about blazing tires for miles, and smiles. Then I ported and polish the heads, installed a very healthy cam, Edelbrock torquer2 intake, Holley 780 spread bore, with a nice set of headers, 2.5 in exhaust out to the bumper. Then added a 150 shot. It will blow th400 transmission apart like they were nothing. After installing 12 Bolt posi with 273 gears.
Polished combustion Chambers, to get rid of hotspots.
The car was a true daily driver. Complete with air conditioning, cruise control, and all other accessories.
It also had the widest possible wheel tire combination, that would fit under the car at stock ride height. Complete with Oldsmobile hubcaps.lol and you are absolutely right oh, the 273 gears were great on the highway. The car averaged 26 miles per gallon with the AC on. But yet they put that serious low end torque to good use.
The first to Turbo 400 I bought from very well-known performance transmission companies. What I found out was the cause of their failure, is the modified pump they used. It was designed for top end horsepower. So they did not build full pressure until around 4000 RPM. Which meant that while the engine was putting a lot of torque down in the 2,000 RPM range, the bands were slipping and causing the transmission to heat up. Third transmission I had built by a guy that had many years experience racing big block Buick engines, and knew exactly what to do. I was never a GM guy. I was just playing around with this car, while I was building my 69 Mach 1
@100,000 subscribers no comments this was in the mid-90s. And yes I do understand. The intake manifold was match ported to the heads. But was still a cast aluminum intake.
You will still get pooling of fuel in the intake at low RPMs and low temperature. And that is why you need a richer mixture on a cold start. This is all old news.
I tune fuel-injected cars today. With a good set of Deka injectors, you don't need as much enrichment at lower temperatures. Provided you're using the right spray pattern for the particular intake and intake port shape and size.
Just imagine what this 500Caddy will do! Y the time he put aluminum heads on it before boost he got 780 HP. And nobody expected that.
Love that you’re doing 500 Caddy, Richard. I swapped one into a ‘69 Firebird and bracket raced it. No mods except a warmed up cam. 268 adv duration. At altitude it went best of 13.2, but 60 foot was quick: 1.80 when other similar cars were barely under 2 flat. Had to shift at 4400 rpm cuz of valve float. Didn’t have the funds to improve it. Super way to go quick for cheap in a street/strip car. Looking forward to the next episode. Thanks man!
500 foot pounds at 2000 and basically 400 horses at 4400.
That should motivate my little Studebaker pretty good. I can't wait to see more.....LOL
Great build series.
Did those Studebakers come with a shoehorn?? 😋 Factory v8 helps but I've seen some muy grande motors in those and they sure make for little rippers. You guys were going very fast pro-street style before many others.
@@youcanbesmartaskhow3857 Mine is a 53 truck, it's got a fair amount of room.
BTW: a 1953 Studebaker half ton short box only weighed 2850 pounds in factory trim.
@@johnparrish9215 You going to make a video of that?
@@tenorhowlermonkey3454 No, I'm to much of a hack. I wouldn't want so show people my messed up ways.
If they dino'd in Albuquerque they are also 5000 ft above sea level, so a hell of a lot more than that at sea level.
You need to get the overhead shot of the Quadra jet carb, as they look awesome opening up!
good idea
I've always wanted to do a mild build on one of these for my truck for pulling trailers. Now I can see I need to
Fantastic! I had a buddy who's Dad would swap these into '68-'72 Chevy pickups. He said he much preferred them over a big block Chevy. I went for a ride in one and it was an effortless tire smoker!
To bad they have a hardly enough oil system
Oooooooh man I’ve wanted Caddy stuff to happen.... glad to hear you’re gonna go boosted 👍
Ever since I saw Car Craft do a budget build with a 500 inch junkyard Cadillac engine into an older Nova I've wanted to see it also!!! [Probably about 25 years ago lol] I wanted to see bolt ons, but honestly boost is beyond my expectations!!! More hyped than usual for this particular Other Guys' build...
@@youcanbesmartaskhow3857 I guess that article hit us both at the same time. Several years ago a came across a auto auction from a garage, mechanics lean on a 76 deville it was a beater to say the least. No one bid, I took the car for 100 bucks. I was shocked when I saw the th400 was almost as long as the car was.lol. unbelievable long tail shaft on that thing. Anyway, I scrapped the car and got $400 back when metal was high.
big Hurtt Plenty of love for those torquey engines
@@duncandmcgrath6290 yup. Just not much love for the transverse layout that many started life with.
Well, it took headers, a cam, and an intake; but it finally got to the numbers I guessed. 😆
Great videos Richard! Thanks for taking us on the ride!
I like the straight 6 series and this 500 Cadillac. I have been a big fan of Big block Cadillacs. What you didn't mention is they make a lot of torque at low rpm. I have a 425 in my Cadillac, i have been beating on it for 10+ years. They are reliable. 348, 425, 472 and the 500. You can't go wrong with one of those.
368
My guess was 302hp, 493ftlbs. But, that was based on "stock". Love this series! I'm putting a '76 500 in a 70 Nova
That's so cool!
I’m shaking I have a 1970 Deville 472 and live in Santa Fe New Mexico.. What a great day I’m gonna watch this video over and over and over
Appreciate the guidance on these engines. Doing some restorative maintenance on my 71 right now.
Love this "other guys" series. Very much looking forward to seeing what this motor does with a turbo on it at different boost levels.
Awesome job Richard! I can't wait to see some boost! 👍
First time I knew you were in NorCal.
I'm up here myself.
Every time I see an old caddy in the wrecking yard I run over and hope the engine is still in it.
Man these engines are hard to find. Who's got them all ?
Ive been watching these vids with my dad for the past couple of months since he has been visiting us, and we already have a turbo ls swap in the works for his 93 silverado! Good thing ive got a parts van to pull from! Love all you do homie!
Im fairly new to your channel. I went through a lot of your series and they are all top notch, but this one is by far my favorite. Very refreshing.
Welcome aboard!
Love that engine. Can’t wait to see the next video
Awesome video. Excited for the next one
Need to push torque curve to the right. Fascinating video
Ive been waitin for this one!
Boat anchor is all the 500 engine was, has and will always be.
you spelled torque monster wrong
Very cool I love old caddy motors
I used to dream of supping up my old De vile and having a sleeper sofa... I never had the resources or skill set then, and I live to see these old girls grind out those torques. Thank sir For the other guys series , super cool
Holley cad intake?
Very cool, great series!!
Love it, have the same engine running injection. Can’t wait for the boosted part
What system?
I started Vocational School auto mech class about 1970 they had a 500 or a 472 Cadi in the class room dissected head and block cut into to show how a engine worked it was a new engine. I remember our teacher was a FE Ford man and swore by Texico Havoline motor oil the other teacher in the other class was a Mopar man and I was there to find how to make my Chevy faster. I have never though of that engine again until I seen your video,Thanks!
WOW, AWESOME, THANK YOU FOR SHARING.
Thanks Richard I had almost identical 76 500 in my 72 Commando. Really cool to see what it should make power wise. ...Mine was 76 500...216/216...458/458..112 cam...Eddy intake,,,,Carb Shop prepped 800 qjet...1 7/8" shortie Sanderson headers.
Wow! Sanderson! Man, I haven't heard that name in a while. So your headers were cast iron, right?
@@DeanMk1 No they are a shortie tube header
@@ronfasano71 Gotcha. Thanks.
This inspires to build my 455 Olds with similar bolt ons and mild cam. Low end grunt is a beautiful thing
Make it happen,then make a video. We love this stuff
My 455 Olds (468) is at the machine shop now. I'm thinking a performer plus cam, performer intake and headers to go with the 10:1 pistons. It's going into a nice '89 Custom Cruiser wagon and will be my summer drive to work car until I retire.
@@jimmy_olds Yes,@klrdirttown
turbo8454 those edelbrock cams were pretty tame 20 years ago, find something a little more up to date.
Hopefully it’s not too late, but make sure the machine shop sets the bearing clearance on the loose side. Don’t let them machine it with typical sbc specs. Those big rods and main bearings need room to move, if they are too tight, they will clearance themselves. I had to go thru the bottom end of my first Olds a couple times before I found a machinist familiar with Olds. No oil pressure problems, and this short block has been together 18 years and still going strong.
Richard, I have a request for the "other guys"... little out of your norm. I'm thinking about my ford 6.8 v10 work truck engine. Something like that would really get it on in an old lincoln lol. Love the budget to broke (wild) builds. Really enjoy the "others guys"!
planned
Those torque numbers are very nice well done! I cant wait to see boost run through her and finding the limits
Of the motor!
This is awesome I literally just bought a 500 caddy on the 10th
That output fits with my long-held theory that a low compression, 4-barrel stock factory engine develops peak torque of about 1 lb-ft per cubic inch on a dyno. A high compression engine generally develops up to 10% more, from what I've observed. Interesting that you easily got 10% with the mods!
I guessed 207hp 457tq,I like your videos so much that it kinda irritates me to see that people give your videos a thumbs down. Anyhow... awesome!!
Stock on the Caddy that 500 was muzzled down with all types of pollution divices and the old style catalic converter and a big muffler and a resenator through a single exhaust and 256 rear end gears and over 5000 pounds of weight to pull. But back in the 1976 road test it was the Caddy that had the quickest 0-60 pulls of all big sedans. With the Buick 455 being number 2, the 440 in the New Yorker did was the closest to the 500 on the top end charge. But these were bone stock engines when they came out , and the Caddy 500 was crowned King of performance!
Yes!!! Thank you. I have a 519 in my 70 deville
Cool, perfect upgrade step order to see the build plan progress..
I see the same trend for the 403 t/a motor I’m doing in my garage for a ‘87 safari wagon lol gonna be mint! 👌 same 204/214 cam already in... 024 kB bored/balanced, same q-jet
Picked up a nice 3/8 long round ball burr and that’s working great along with the rest I have for the headport work.. no bigbucks for your fancy ‘out of the box’ heads.. hopefully a performer intake gets ordered soon! That and headers are the last items to get!
I can't wait for the boost part!
That did wayyy better than I expected for a low compression deal!
I've been rebuilding a 472 with 10:1 pistons and a 288 duration cam along with the Edlebrock 2115 manifold. The engine is going into my 1972 C20 Custom Camper with a manual shifted 4L80E. Should be a blast to drive, a real sleeper.
Great video 👍
Richard, thanks for doing these videos. I definitely like the "edited" version better!
I drill and tap oil pump pipe plug 3/8-24 and taper the hex area to seal with an oring. Use Teflon sealer on pipe plug.. I use a 3/8-24 nut with a taper to seal against the oring. Turn to set oil pressure desired.
about time i saw a BOC gm big v8 on this channel....yessssss!!
I guessed 375hp 525tq before I really listened to the video close, thought you where talking about your 500 with the aftermarket intake. starting to be really impressed with the Caddy!
Torque monsters, should have put them in trucks. My grandpa had a 76 eldorado coupe fwd. I always preferred his 71 lincoln mark iii 460bbf 385 series, 365 hp 500ft lb of torque STOCK. That's cool you're so close, I'm up here in Santa Fe lmao
Excellent
What a torque monster !
that torque curve . man from a UK perspective where we dont have big c.i. motors just insane, I guess you need it with a 3 ton barge of a car but surely itd still feel sprightly.
Denis O'brien : A bunch of hard core Brits have always done big inch Blighty Bruisers. Lagonda, the later Aston Martins, Invicta, Railton, Jensen, Bristols big block era cars before the 5.2 and 5.9's. Panther etc. Matter of fact... Bob Jankel at Panther did a 500 turbo Panther 6 in 1979, and Jansen did a bunch of SP2 7 litre Interceptors. Then Lister ( not the Red Dwarf one!) did a bunch of 6.6 litre Jag V12s. Tom Walkinshaw was reported to have a 5.6 litre stroker version of the Holden 304 inside an SD1 after he did the Group A dual throttle Body Rover 3500 Vitesse development cars. Big engines abound. And the Rolls Royce 413 6.75 in the Bentley Mulsane Turbo...and every Roller from 1972 to 1992. 6.25 lires before that as well..
Such a cool engine!
Soo dope. Thanks Rich
I had no idea the cad 500 had that kinda torque. Now I'm rethinking the engine swap for my towing rig.
This is bad ass i so hoped you would do a 500 or even a 472 caddy engine with all the new stuff for them.
My dad's '76 Caddy Eldorado had a 500cid, with fuel injection. Horsepower went up to 215hp
Torque was 400. The selling point was more MPGs, but, it was quite fun with the added power for the day.
That’s awesome. I first read about these when hot rod or car craft stuffed one into a chevette when I was a teen.
Steve Magnantes "Bad seed" circa 2000.
I still have the aricle on nightstand
I was off by about 12hp. Cool videos.
Ooh, a Caddy 500! Neato. 😎
Wow the torque is incredible just in stock form
One thing about the large chamber heads is they have a lot less valve Shrouding vs the small chamber heads I actually prefer the larger combustion chamber heads on the 500 plus lots of room for doing seat work
I can only enjoy the Techno music if there is blue oval power coming up
I like how you are masked up at the beginning and not in the middle of the video! Hehe
This interests me. I have a '76 500 in my Ratrod. Bone stock and blisters 40" Super Swampers on pavement with no problem.
I guessed 365 Hp and 402 Torque. Probably lot's of people closer but that's life. Thanks Richard.
Enjoyed this we had one in a 75 cadillac used to kid my parents step on the quadrabog the jolly roger flag would pop out because the torque would make that old land yaught haul some... Thought a 270 280 PAW cam headers intake 850 double pumper holley and 100 shot nitrous woul d make for fun in a truck or car TH400 2400 stall 355 gears.
Cool vid! Richard you are literally the James Brown of UA-cam engine tech. Ain’t nobody work harder than you
Not even the Micky-D’s your colleagues eat at in Albuquerque can compete 🤭😂
Love all the hard work and dedication you put into your work brother. Cant wait to see what that big 500 can do. Are you keeping the bore and stroke the same?
turns out this test motor was .60 -over-I did not know til we took it apart (mine is staying stock displacement)
I haven't been interested at all with Ls stuff because im bored of it, this on the other hand is awesome!!
Best one yet
Love it!!!
Awesome.
I met a guy that built a very similar motor. He started with a 472. "RV" cam, headers, and Edelbrock manifold. He had in in a '70s GMC pick up truck with power everything. While turning he found some significant seat of the pants drive ability gains buy adding a carb spacer. He had started with one that was just a little less than an inch and ended up with a 2 inch spacer. Nothing was dyno tuned, all set of the pants and tracking fuel mileage on road trips. It would be interesting to see if a spacer mover some of the TQ or HP curves around in the lower band or part throttle.
we tested that
Because of the nickel content the caddy engine needs heat to run ,spacer keeps fuel cool
That caddy 500 is a beast. Its begging for more cam, and a bump in compression. Clean up the heads, take all the imperfections out with a carbide bit. Port match intake to heads and I'd love to see the numbers after those mods, please!.
Richard you got one of the best job in the world Js. I hope to see you test and modify the 7.3 Godzilla in the future. Would be interesting to see some different cams tryed out, my gutted foxbody needs a engine lol. The 7.3 has got a lot of good things going for it and its a grand less than a coyote. Chevy guy's are really going to hate on Fords more than they already did.
Brian and Evan are doing a good job over with the one Brian has
Great testing Richard, you know stopping at 5,500rpm sounds so odd on a dyno session. Keep testing.
I think you should just do a traveling dyno show. I know you know enough people. Test it all!!!
would be fun-hate to be away from my family that long though
Not sure where I'm going to find room for those headers.. middle of the wheel exit? lol. I'd be curious what (if there is such a thing) a shorty-mid length would give up to the "ain't gonna fit" pipes here. The dual plane mamby cam was my favorite, thanks for taking the time to do all this!
Sounded like it was barely off of tickover when he was revving it.. During that first run was that engine running a little rich going by the black smoke that seemed to come from the exhaust?
I had one sitting in my 77 Chevy Monza. Ended up going BBC, but always regretted not going other guys style
n what you do witth that car??
Had a 78 Monza with a 400 in it, couldn’t imagine all the contortions it would take to get a 500 bolted in 👍
@@P71ScrewHead Still got it! photos.app.goo.gl/2T1KFMpuYtucH5HNA
@@Turbo_Todd dayum, car looks nice man, congrats..
Thank you for your knowledge 💪🏽 USA 🇺🇸 USA 🇺🇸 USA 🇺🇸 🙏
My man from northern Cali 🤟
Knew a Cadillac guy back in the day that said just an intake manifold swap was worth almost 50 hp on a dyno. Can't wait to see what it is
Edit sure as heck he was right.
You know that intake they replaced the factory one with, it still looked pretty conservative I wonder if the heads could handle a medium rise intake a little more carb, and more timing?
that stock intake was practically an "updraft" rather than downdraft :) Your buddy likely searched for the 425 Caddy and plucked its single plane.
I shoved one in my 81 T/A with a
368-h cam, edelbrock intake and headers...couldn't get the damn thing to not smoke the tires anywhere in first gear with 3.08 posi!...I actually put 2.41posi gears in it and it pulls like an jet airliner taking off now!...nothing like that smooth low end torque of those big 'ole Caddy motors!
I love your videos. I wish I was close to people that were willing to work and had skills so I could build a 383 stroker with TPI and vortec heads for my 92 GMC sierra. I also want to freshen up an lx5.0 I have with all the explorer and cobra parts I have hoarded plus rod and crank stroker kit
Sounds good but I'd take the Caddy any day, and get better gas mileage while doing it
Recalling how The Car Wizard swapped-out the factory 472 in a late-60's Deville for an R-block Olds 350 diesel that also saw all the fixes, including updated head gaskets, hydro-roller cam (stock & standard in the R-block) fuel-water separator (required if you ever run diesel) and fully studding-out the block.
This stated, and seeing how even N/A diesels can produce torque numbers comparable to a Gen-II Caddy V-8, one wonders what gains could be seen by the Oldsmobile 350 if even some the same mods seen here were applied to it? And Richard... knowing you, I'll bet you'll also want to tryout a turbo setup on it, too! ;)
This is like an old (20yrs) Hot Rod article where they did a junkyard Pontiac 400, there was like 10 stages of add ons, with a rebuild in there after too many trips to the upper rpms.
Now this is knowledge
I was close I guessed 380 525. Can't wait for BOOST !!!!
Keep going!
I have a SBC and don't want to go LS but want boost. I think it would be a good show idea to test the Banks cast iron turbo manifolds feeding a Edelbrock ProFlo front feed EFI intake since there aren't a lot of quality off the shelf solutions. I have a first gen Monte Carlo so have space for days, just want to keep the factory hood.
Not bad--the 1970 500 cid made 400 hp with high compression. Back in the days of Sunoco 94, when you wanted a cheap gas engine that could yank a boat trailer uphill or an RV (diesels were still expensive, tho Gale Banks was beginning to make turbo power), and the Chevy 454 done .06 over to breathe, wasn't enough displacement and buying an aftermarket crank to fit into a 427 tall deck you plucked out of a dump truck was too expensive...a low compression Caddy was the secret.
Pull a single plane intake off a 425 Caddy, tune the HEI, get a kit to convert Chevy Big Block headers to fit, and you had the displacement to run AC and haul ass under full load. But today, you go to the junkyard and snap up an 8100 (only one company has the heads, why isn't Edelbrock all over this?) or hit the swap meets for a 502 rat...
I love the Dynosaur shirt
me too
Future for my 75 El Dorado Convertible💡
493.5 Lb-Ft at 2600 RPM and 302.1 HP at 3600. Loving the low end torque!!!!!
Love the big block caddy research....maybe these guys got some 8.1 vortec tricks 😁
you mean the 8.1Vortec used Caddy tricks, and one of them was to increase the stroke. Remember the Caddy 8.1 was here first and came out back in 1970. This is all about maximising on the Caddy weekest links to reach its potential.
On the trip did you play Weard Al Yankovitch "Albuquerque"!
Nothing quite like one of these big GM V8's using an 850 cfm Qjet where it goes BUUUWWAAAAAAAA!!! when you put it to the wood.
You live in the Vacaville area? I'm over in Santa Rosa; stay safe from all these fires, man!
The reason this stocker made 312HP rather than the rated 290 SAE Net HP was the Cad Company upgraded rockers/springs. The stock valvetrain floated valves at about 3900RPM (depending on miles). The oiling system, bottom end and heads were underutilized due to the flappy rockers/springs.
Cad 500s are a special motor with some great engineering in them. High nodular blocks, super thick in the right places, excellent flowing factory irons , etc made them great candidates for upgrades. Plus the motor is "small" for it's massive displacement. It fits big power in tight spaces.
the 1975 motor wasn't rated at 290 hp (100 hp less)