Upgrading the Cadillac 500 To Make Serious Heavy Horsepower - Detroit Muscle S8, E2
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- Опубліковано 30 січ 2021
- Our '76 Cadillac Hearse gets some engine upgrades to help it get down track. Plus, Tommy goes on the hunt for an axle to keep all that power to the pavement. #cadillac #horsepower #engine
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PARTS USED IN THIS EPISODE
RockAuto.com
Water Pump & Gasket Set
pntv.us/pn_pt_16843_5ff5d6515...
Summit Racing
Aluminum Intake Manifold
pntv.us/pn_pt_16846_5ff5d6ae5...
Summit Racing
Camshaft
pntv.us/pn_pt_16841_5ff5d60ec...
Summit Racing
Push Rod Measuring Tools
pntv.us/pn_pt_16845_5ff5d6920...
Summit Racing
Timing Set
pntv.us/pn_pt_16842_60872201b...
ARP
Head Studs
CRC Industries
CRC Heavy Duty Pro-Strength Degreaser
JW Performance
Heads, Valves, Rocker Arm Assembly
Matco Tools
MATCO Tools are the Official Tool Supplier to PowerNation
The Industrial Depot
Tools, Hardware, Shop Supplies - Авто та транспорт
I love how they dont just LS swap everything.
I was thinking about a Chevy 502 or 572. But they did keep it Cadillac.
That would be too effective.
Probably should have k swapped it 😂
@@84eurospec911 k swap the world 😂
The LS is the best thing since sliced bread.
For 1970, Cadillac increased the stroke of the 472 to create an even 500 cubic inches (8.2 liters), initially as an Eldorado exclusive, producing 400hp and a massive 550-lbs ft of torque.
Yes , no. Way over rated power numbers dude !!
Many people have rebuilt these engines to factory specs and put on dyno. They got 323 hp and 500 torque on a 1970 engine 10.1 compression. I drove these caddys for 24 years straight. I had several and built the transmissions and differential you name it. I forgot more than you will ever know.
@@Iceman_777
500
In 1970 Cadillac fitted a crankshaft with a 4.304 in (109.3 mm) stroke, increasing the total displacement of the engine to 500.02 cu in (8.2 L). At its introduction, it was rated at 400 hp (298 kW), SAE gross, and 550 lb-ft (746 N⋅m) of torque. en.wikipedia.org/wiki/Cadillac_V8_engine
@Darknamja Says a guy who drives a Honda.
Good thing with the caddy 472 and 500s , even after 100k miles on it they'll still have cross hatch marks in the cylinders they rarely need a rebuild and they love a cam swap, 76cc closed chamber heads, an intake . Been building these Cad engines since the late 90s.
Why close chamber, open chamber breaths better?
The cadillac gurus say the 425 heads don't seal on the 472/500 and vice versa???????????????????????
We like em to for our air boats we run direct drive so horse power is what we gotta have we really only use the 1970 or older motors takes less money to get the power were looking for the older ones were supposed to come with 400 h.p.but we have found a few we knew were making more then that the last one we bought was right out of the car a March 1970 hadn't ran in years I was shocked to say the least when I got the distributor in timed wired high rise four barrel long tube headers Holly 750 and she fired right up and ran real good not even a lifter ticked in it damn ran good but my brother wasn't happy so I changed the cam lifters springs relapex valves replaced guide seals ported heads and intake new even better carburetor fired it back up broke the cam in for 20 minutes at two grand and damn she's got some power now haven't had it checked but I'd bet she's pumping out 550 h.p.
@@ineffable1129 they need the compression
@@calvinlayport3127 0
The cast iron intake on my old 428fe weighed in at around 78lbs! Going aluminum brought the weight down to around 28lbs.
indeed!!
Even the 352 or 390 intakes were nut busters.
@@bobseagraves1743 They are the same. I swapped a 428 for a 390 in my 67 Galaxie.
When I was working auto repair, a hearse would sometimes come in, and I would be the only person willing to repair it. The other guys were afraid that supernatural stuff might happen.
Cool story
I had a few clients who were in the undertaking business, back when I was a mechanic. Man, those guys were the funniest customers-they were always killin' us with those jokes! I guess you gotta have a wicked sense of humor in that line of work.
i worked in a city bus garage a guy refused to work on a bus cause it squashed someone there was still guts stuck in the brakes & duals i told him see it's all pink on the inside LMAO
@@briannotafan3368 I would work on it if a crash investigator determined the cause and a hazmat team took care of the body parts.
I always love watching these shows and watching them build these old engines. It kind of reminds me as to how lucky we are now-a-days with the technological wonders that we have today that don't require a huge lope at idle with a high stall or a giant turbo in order to hit north of 400-500HP and gobs of torque everywhere.
The old Cadillacs don't require that either. And yes, modern day engine controls just make 'em even that much better!
Spend all that money on good parts and do nothing with the bottom end of that junk. Real smart.
I said the same thing.
Put head studs in it but reused the stock oil pump.
Yep
Have you heard of "top end rebuild"?
@@ghost187x everyone has. When you don't know the true history of the motor spend a couple hundred dollars to make it better. They didn't even look to see the status of the motor on the bottom end.
I would’ve replaced the main and rod bearings due to typical failure they get from years of using the wrong oil. But I like where they went with it, hopefully they won’t need to take it back apart anytime soon.
I had a Fleet of 10, 1968-72 Cadillac Fleetwood Limousines all with the 500cid engine. Never had any problems requiring the heads to come off. They had the double wall exhausts that would occasionally collapse after being driven through a deep cold puddle. Instant power loss if they still ran at all! Replaced all of them with single wall pipe. The other thing I did was delete the OEM fuel pumps and replace them with electric ones. They all had those damned Carter Thermoquads. Edelbrock to the Rescue! They drove beautifully. Better ride than a Roller. They were NOT fast!
Would like to see a full rebuild on a Cadillac 500 with what ever performance parts are available. Maybe Engine Power will do one in the future.
I used those shaft rockers on my 73, 472. They are the best thing since sliced bread! Save the original Q -Jet. They are good carburetors.
It was a serious engine back in 1970. It had 400hp. But it was reduced later to 200 because of the emissions regulations.
My step dad has the de tuned mid seventies 500ci caddy motor in a blazer frame with a ‘64 nova body….. yeah weird but the thing is WICKED!
Got a 72 eldorado, can you maybe tell me what they changed to reduce the power ? Im new in the Muscle Car scene, always had german Cars like a RS6. And no the Eldorado is not my main car😂
@@thelayerstomysoul6170 In 1972 the 8.2 Liter V8 was making about 235hp. They reduced the HP and torque by lowering the compression ratio. Moving from 10.5:1 down to 8.5:1. Also reducing the inbound air lowers the power as well.
That 500 sure would look good with a set of dual quads
I worked on a mint 76 Eldorado Biarritz last week with a 500 engine. Definitely was made outta steel front to back. Electric Green wouldn’t be my choice but different strokes I suppose.
Its awesome how they've over the past 5 years have been building the stuff ive been dreaming of
This is a nice challenge. Brave to hop up a 500 Caddy. It's gonna be gooood 👍🏻
junk the 500 if your gonna do something do it rite the 1st time
I love how the comments are always full of people criticizing these guys like they dont know what they're doing.
Keyboard Warriors
They do some pretty stupid shit, most of this is such a waste of money and way more expensive than they seem to pretend. Plus why would you waste all that time cleaning the exterior of the block by hand, take all the top end off, leave the old worn out bottom end, and throw on $10k worth of heads and shit? It's just stupid.
the hosts aren't the one's doing the work. i am 99% sure someone else is building these cars and the hosts are in front of the camera for key moments. how can you do this all day and not get dirty?
@Lassi Kinnunen 81 Im fine with that as long as the show is free to watch on yt
@@Chris-yy7qc m
Really enjoying the Overtaker, because it’s not just the same old cookie cutter build that we’ve all seen so many time. Bring back Old Blue Hair!
Detroit Muscle is single handedly keeping the RTV silicone manufactures in business
20:53 gotta love the smoke wrench, beats the hell out of turning all those rusty bolts in the dirt.
You should call that thing “Scared Stiff”! Lol
Anyone remember Shade Tree Mechanics?
They were Douche bags
lol yes
I do. That was the original there. They showed how to diagnose cars back in the days of OBD1 and even before. Of the time, there was a dramatic change in engineering in autos, they showed you how to work on it
@@jayyoutube8790 Sam and Dave were about fixing cars and explaining how cars worked. Not selling 10,000 dollars of parts for a project. I would watch them on Saturday mornings on TNN when I was about 13 or 14.
@@jonnygg6594
hand me that wrench pal.
Ok buddy here ya are.
🤣
They were corny af, but had the knowledge.
Used to watch all those silly shows on Saturday mornings back in the late 90s/2000s.
We have a 650 horse caddy.....its a 70 model and we sent it to new mexico to the cad company.....its an animal in a Jeep CJ T bucket kinda thing....I'll post a video this week
I wanna see that bad boy
I like that they are doing the original big block. But 500hp with 700 Tq isn't going to be quite enough IMHO. But it's fun to see what's going to happen. LOL. Love it!
1.5K+👍's up thanks again for taking us all along with you
Love the fast work that fire wrench makes on getting that rear end out!!!
Junk yards really like those fire wrenches. Too bad they don't work as great putting things back together.
Imagine if they did a 472 or 500 pre 1973. The smog motors are gutless compared to the pre 1973 motors
No shit
I got a 1975 Cadillac Eldorado convertible with the 500 8.2 liter under the hood. I get about 7 miles to the gallon after a tune up with only 55,000 miles on her.
yeeeeessssssss ive been waiting for a caddy 425, 472 or 500 build from you guys!!!
Watching this, I could almost smell the old oil and gunk!! Love their videos!!
The Caddy engine is actually fairly light given that's it's 500ci and all iron, only around 625lbs. That's fully dressed, a BBC is 685lbs, MOPAR 440 or Ford 460 ~650lbs. Stock it's a 4.3x4x3 bore and stroke.
Buick 455 is the lightest. Almost the same as a iron SBC. Caddy is also light, aluminum heads and intake and it's super lightweight. They are very wide which can be a problem
You are the best for restoration project 👍👍
Coming together, looks good!
I had a '76 Eldo with a FI 500. Right, so, just imagine barely 200 hp in a 5,100 lb automobile. I'm fairly certain it couldn't beat a Trabant to 60. Nice, quiet, and smooth ride though.
I'm fairly certain it had timing and tune issues. Did you at least replace that sloppy factory vinyl timing gear? Remember, that 'SAE net HP' was a solid 40 percent less than the engine really made-it was done to make the auto insurance industry happy, and for eco-regs. The EFI version actually made more power than the carb version-and was a lot nicer to drive. Keep a spare temp sensor in the glovebox, tho.
I have a factory EFI '78 DeVille that's supposed to only have 185HP, yet from stoplight to stoplight it will embarrass all those turbo Audis that try their little pass on the right trick. They fail-and lose to a big ole' green, chrome bedecked, 4200lb American couch-mobile!
It's pretty awesome.
@@Bolton115 - I remember the timing gear problems with those engines. The day I bought that car (used) from a dealer, the transmission went out. The dealer took several days to replace it. Two days later the car quit running. They took a day to fix it. Two days later it broke down again. Rinse. Lather. Break down again. Got rid of it in two weeks so never got into the timing gear issue. Those five times when it was running okay were really sweet, though. My '73 Coupe de Ville had plenty of power, though and of all the Caddy's I've had, I miss that one the most.
@@vincentjamesthequicktake1720 most places wouldn't know how to work on those old EFI systems. They can be very reliable, but the tech repairing it has to do a bit of homework. I wonder how many of these got switched to a Qjet due to bad temp sensors and a misadjusted throttle position sensor, or a faulty fuel pump circuit. Today, there is also a MAP sensor mod to allow a modern day 5v MAP sensor to work in the 1970s 9v ECU environment.
@@Bolton115 - If only I had known then what I know now. Thanks for the info :-) The prices of those today have gotten truly insane. Still, I'd rather have my old '73 Coupe de Ville back, carb, points and condenser, and everything!
@@vincentjamesthequicktake1720 yeah, it's hard to beat the older, high compression carb and points setup, at the very least because they are a known quantity for repairs.
I started out with points triggered cars, and wasn't sad to see 'em go when I went to HEI.
Superb job on the cleaning and engine refinishing
I have followed you guys for a year and you always motivate me. I want to open my shop and work like you guys one day
Am from Ghana
I love this family thank you for this I got a 76 sedan DeVille I wish I could do my motor like that 😎
I'm loving this project!!!
Love the colour, I have painted my 302 Cleveland lime green that I have fitted into my 93 Nissan GQ Patrol.
The caddy 500 Cubbert engine always made Chevy, Ford, and Mopar scared that Caddy would build a sports car with that engine in it. They know they would be outgunned by that beast of an engine.
They put enough RTV on it to stop the titanic from sinking, reused all kinds of old junk on it and then not even touching the bottom end with plans to give it the spray lol
because the car isn't worth anything. it would be a waste of money
@@alejandroherrera5271 If it's worth building, it's worth doing it right. Not doing a bottom-end rebuild and testing/cleaning the block was kinda silly. At LEAST bearings and rings, even if they kept the rods and pistons. Trueing the crank? Maybe, not like they're going for 1000Hp, but still a benefit.
It will probably survive nitrous, but better to make sure it does.
Did you see the condition of the distributor drive gear?
@@MrAcuta73 Right?! Seems like a modern set of rings and bearings would be good for 20-40HP simply because of the improved compression. Less oil consumption if nothing else.
Early model small chamber heads would give you 12 to 1 compression with the stock pistons. That swap isn't recommended without upgrading the bottom end though.
Usually the factory cast pistons don't respond well to that increased compression in the 500s. Ring lands tend to collapse. I for one would have liked to hear some further explanation of why they went for a 425 head (with considerable additional machine work and expense) over the stock heads or earlier 472 castings.
425 heads are prone to blow head gaskets on 472-500 engines. The water passages are different and get really close to the fire ring. Better off changing pistons and decking heads. I have done the early and later heads. I would say the later 120cc heads are great for the street, small chamber are probably better for race only however there are several aluminum heads now so just ditch the iron. I would always recommend the grooved cam bearing on any Buick or Cadillac. Me personally would get the heavy stock pistons out. Get weight out of the bottom end and balance, then run roller rockers and you can actually rev it😂
Five hunndert cubic inches of Deee-troit muscle!
I love the show can't get enough 😀
11:00 i never realized how fire this shows soundtrack was. blues guitar and muscle cars goes together so well.
Fire? like Firetruck ??
Glad to see having progress
Great Vid - Don't see many 500 Builds - However, I am not sure why if you almost strip it all the way down, you just wouldn't go the extra mile & pull the rods, rings, pistons, crank etc & start fresh, even if it's just a rebuild, no oversized parts, boring etc.
Alright..... Alright........ & Alright
One of my favorite projects. I can't wait for the next episode! #Overtaker
Mike Galley built a 500 Caddy that made 600hp! They had the parts reps on hand during the dyno test! Yes aluminium heads are available for the big Caddy V8's!
I got an old '76 Coupe DeVille for cheap, with the 190hp carbed 500, the injected has 210hp... on paper, actual numbers I ain't got a clue.
But seeing a video like this gives me hope for the old lump, maybe the 500 can be made into something functional beyond a way of quickly setting fire to fuel while managing to float down the road holding onto the steering wheel in fear, as Norway... ain't all big highways, it's like taking a boat to cross the mountains, slow and ya get seasick :P
Still enjoy it, just didn't seem like the most efficient engine for something strangled due to the oil crisis, they went the opposite direction of the last oil crisis car I had, a '78 Mustang II with the 2.8 V6, 90hp, but a tiny light car that was surprisingly good for its age, a light nimble American car from the 70's almost sounds like a joke. :P
The other USDM car I've owned also felt like an oil crisis car despite being an '80 model, 140hp 4.9 V8, a 1980 Buick Century Estate Wagon (basically a Malibu wagon) with a 301 V8, but not with the turbo that the Trans Am had, a lazy low powered engine for its size, but enough torque to keep up with "sporty" cars from the 80s on the straight.
I have no idea why I went on about that, I'll just blame my ADHD and move on, as what I was trying to say is, thanks for showing a way to keep the 500, it'd be more interesting to keep the huge thing, than swapping in something smaller and newer.
8:50 Cadillac heads were not the problem. It was the low lift cam. Any time a 500 cuin v8 only make 200 hp. It needs a cam.
No those heads have bigger combustion chambers. Stock compression is either 7.6-1 or 8.0 I can’t remember. Those 425 heads are from the 60s and they raise the compression to near 10.1. The cam only compliments it by taking advantage of the increased cylinder pressure and improved airflow. That cam is fairly mild but still aggressive. Throwing a cam with that duration in a smog motor with low compression and you would have a dog.
@@danhoyland142 425 heads were not around in the 1960s.
@@danhoyland142 No, the 425 is from 77-79
The 425 caddy heads came off the 77 thru 80 engine blocks. The reason we use them its a direct fit and raises the the compression to 12 or 13 to 1,what ever your heart desires
@@puffkendrick6850 We? They don't raise the compression that high and they stopped using the 425 in 79.
I get PowerNation as an internet channel on my tv. I saw this at least a week ago....BOOM!
I’d love it if they did a 215 olds build!
My first job as a mechanic was at a Cadillac dealership and I can remember most hearsts had 500 v8 engines. It was fun working on them then test driving them and backing a hearst into someone's driveway and watching their reactions. Lol
"All Ford salvage yard"...you mean a dealership?
@Ed Miller Guess that isn't an "all Ford salvage yard" is it?
@Ed Miller You've clearly missed the point.
I think a gm 12 bolt would have been my choice, keeping it all in the family. Correct lug pattern also..
stuff a ford under it! .... if this car was a ford, I'd say stick a chevy 14 bolt under it! heh,
Many of the GM truck axles shared the same wheel cylinders as the Commercial Chassis cars too.
They come from the factory with a 12 bolt
@@diduck6878 Wrong. It's a proprietary Buick, Olds, Pontiac design but still does not share any of its internal parts. The axles are entirely different thickness and splines. The carrier and ring and pinion are uncommon.
Pretty sure an ambulance station wagon or some commercial chassis gm car's had The five lug Dana 60
My Great Grandfather drove the Hearse/Ambulance for his town back when.
These guys do great work
I love how the projects on here arent all cookie cutter clone LS swaps. As for going to an all Ford salvge yard for a parts for the Caddy? Thats just going back to the Caddys roots because the car that became the first Cadillac was originally created and designed by Henry Ford
@Ed Miller Ford was in with what became Cadillac as well. That is why other than the mechanicals of it, body parts etc from the first Cadillacs and the first Ford Model A could be interchanged. Theres much more to it but its too much to list here
Tommy is the best, a company man.better hold on to him.
These boys are in dream land USA. I had many 425 caddys then moved up to the 500 c.i. Cadillac engine. I also rebuilt several TH400 transmissions. Getting that much power out of that engine with those mods is not gonna happen. I spent over 10k on mine. Best parts available I got 500hp and 600 torque. These fools have been taking carb cleaner hits.
I can't believe you did this much work and didn't go ahead and put a few more hours of labor and some more parts into completing the rebuild with a refresh of the piston rings, main and rod bearings, and.....really properly blast clean every part. It wouldn't have been much more time or money.
Put one of these in a 81 trans am....was an absolute torque MONSTER!!! WOULD FRY 295 50's from a dead stop all the way to drive..with a 273 gear! God I miss that car
Gotta love the more effort to get a great paint job
Brought to you by RTV! Get show guys👍
I like this guy; talks like me! A touch of Elvis really. Thank you very much!
Back in the old hot rod days you took a 500 cubic inch Cadillac engine took the heads off a 472 Cadillac engine installed them on the 500 and it gave you 14.5 to 1 ratio combustion. You could buy an adapter to put big block Chevy headers on it crane made a cam for it and all you had to do was come up with your own homemade intake and you had a beast. Hot rod magazine put one in a Chevy chevette one time.the carburetor ended up sitting around where the windshield frame met the cowl. So yeah any big block didn't run on just horsepower it was pure torque. How to know my big block Mopar 440 used to beat those small block Chevrolets every Sunday at the drag strip.
Wish you guys would make these longer. Showing the motor more being worked on
Can’t wait to see the over taker finished!
Them 500 and 472 ci motors made tons of torque way back when.
Those were in those Cadillac Eldarado's . I've never heard of it used for a sports car. It had a funky reach-around transmission to make it front wheel drive.
tbat tranny was called a th425, a guy put 2 500/th425 in a Yugo ,one to drive front wheels, and another in the back, I have also seen a Lambo Countach kit car with a 500/th425
Would you ever consider doing a show on the Olds 350 bolt on performance build? I am in the process of trying to research for a 1971 Olds 350 build.
Really digging the keeping LS stuff away from BOP-Caddy stuff as much as possible.
My buddy has a expo just like that one they pulled the rear out of. Same color code and everything. He just put a rear in his cuz he cooked all the bearings in it. Definitely compu
Suggestions or options: Shave the door handles off those side loader doors, Revisit the engine with a black spray can, Lose the padding on the roof if it is still there; that stuff is a rust encourager, Why the iron heads? Nothing aluminum available to shed some additional weight? As for tearing down the bottom end, the test drive didn't show any blues, but also no mention of any pre tear down compression test. This motor spent its life trolling along a slow speeds or at idle, but it would still have been a good idea to pop the oil pan to mine the bottom for nuggets and check the crank end play but hey, I'm not the builder, they are. Oh yeah, that Caddy pickup conversion idea a thread or two down the list would be both killer and a weight remover; keep the side doors to make it a real one off.
Please bring powernation back to my Sunday TV line up!
I'm a bit surprised you didn't opt for a 9in ford made over 30 million of them and there are still well over 100 thousand of them out there. but when you remember the 9.75 has the same sized bearings as a Dana 60 and you can see why it's the new go to
I must say, the You Tube engine/mechanic channels just seem to be better than TV shows that run episodes on here. I may check out a few other videos.
The hearse is quite an undertaking! 😆 🤣 😂
Them ole cadillac rearends would be the envy of most 1 ton trucks. Problem is, you can't get parts for them!
Anyone else notice how corroded the "new" camshaft was? I'm betting it has been sitting on a parts store shelf for YEARS waiting for a buyer.
Theirs somebody somewhere..... dying to take a ride in that caddy
Those freeze out plugs look like they're in need of some luvin'
Subbed always had a soft spot for caddy big blocks
Get a soda blaster. It lifts grease instantly and it doesn’t harm any paint or finish.
What were the engineers doing for the twenty years that they weren't engineering on the automobile. In 69 we had four wheel disc breaks on the Camaro and we didn't see them on from the factory until the late 80's.
Cost, it's that simple. Remember, we are talking about an industry that did the math and figured it would be cheaper to let people die and settle court cases than upgrade a 40 cent fuel line. drums to disc entail a lot of cost, hence...we wait.
I'm so happy really, to see other's who see what they did and are doing. That I'm not the only one who sees these things.
Well, drum brakes are way more reliable and cheaper to maintain. You can still buy cars with (rear) drum brakes.
Most trucks (+3,5 Tonnes) still use drum brakes..
@@ferdi93ferdi Cheaper to maintain? What kind of maintenance do brakes need? Anybody can change pads. Drums full of springs are a pain in the ass. Discs feel way better than drums, too. Reliable? So long as a brake line isn't rotten (and that could happen with discs or drums) what's the difference in relaibility? You ever hear of someone doing a drum brake conversion?
And yea, heavy trucks all use drums, but that's a bit apples and oranges, don't you think?
Sorry to carry on, but I hate drums.
I didn't realize that.
Anyone else wince a little when he tapped that screwdriver into the gasket surface with a hammer? I mean, he did at least use the plastic deadblow, but I think someone forgot to tell him that only counts if the hammer is what's striking the tender bits.
There is a monster in the hearse. I can see it's eye 4:00
Do the build, have the reveal, then continue the build and cut the back off and make it a Caddy Camino with a wood floor bed with a 6-71 coming out the hood.
Got a good friend at work that had a Pinto station wagon when we were both younger, much younger. He chopped the back half after a tree fell on it and named it the Pintomino. It turned lots of heads. Most likely because it looked as though it was coming toward you and away from you as far as that goes at about a 45 degree angle. Drove like shit, but it was cool!
@@thomashaley5284 should have called it Pimento Cheese
Lots of funeral homes have a thing that looks like a Cadillac El Camino...
I saw a funeral flower car a few weeks ago.
Never saw one or never noticed ,I'm not sure but it was kinda neat.
Basically a Cadillac Ute.
Building a Cadillac must be a passion of love
Because there aren't many speed parts for it
Lots of parts for Ford's Chevys Mopar
and easy to get them over 500 ci..
and bigger
Finally! Engine builders who clean the engine before tearing it down!
ever heard of a power washer and doing it outside????????????
Slobbering that Holdner knob!
Built a Hearse back in the early 80's, It was an Oldsmobile so a little different looking, but, it was a torque monster even when it was stock. That thing would wake up the dead.
Did you look over your shoulder when you floored it and look for spirits 😁✌️✌️
@@MrTheHillfolk It was sort of creepy at night, but the all girls had a love hate relationship with it. I didn't keep it long, but I'll remember it forever.
Cool Show
Tommy is one cool dude.
finally been waiting for this
It's 150 lbs lighter than a big block Chevy.
More importantly however, as someone who's done the 425 head swap on a 500-and put it in a school bus-you need to mention the cooling hole mods which need to be done to the 425 head and to the 500 block decks in order for 425 heads to not run hot on a 500. The steam holes are different, the 425 head has a few extras.
I love how hard Tommy exaggerates "dat ol' southern accent of heeyiz".
Or I'm sorry, that southern "droll".
Gonna spray BUT not open up the ring gaps. And you were right there.
The Cadillac motors at 500, 472, and 425 CID are all similar. The 500 is a square bore block with 4.300 bore diameter and 4.300 stroke. The 472 reduced the stroke to 4.082 inches while keeping the 4.300 inch bore. The 425 dropped the bore diameter to 4.082 inches and with its 4.082 inch stroke it is again a "square bore" motor. All these blocks share enormous main bearings, a full half inch in diameter larger than those found in a big block Chevy motor. The Chevy has 3.75" nominal diameter bearings, while on the Cadillac blocks, it's 4.25". This gives the main bearings enormous oil flotation surface which contributes to their durability. Bottom end failures of these Cadillac blocks due to oil issues are incredibly rare. Any such issue basically means you ran it out of oil for an extended time. Basically nobody ever sees that failure. The weakness of these engines is mostly in the rocker arms. They need to be replaced with upgraded rockers, and the cam bearings are marginal and also benefit from being replaced with .001" oversized cam bearings with external oil grooves and a second oil hole.
After all that you've got one of the toughest motors around. Pure durability.