As the title states, I have a lead on a 1967 caddy convertible with a 500 engine, the man tells me he has a couple other caddys and engines to pick from. Aside from hearing them run and he's says some do run, how can I tell between a 500 and a 472? I currantly have a 368 in my 53, and since its a bolt in swap, I am looking for a 500 to build up. What are some of the things to look out for in this engine? He has mentioned the script "cadillac" on the valve covers. Thanks Godspeed MrC.
76 is low horse power you would be better of with an earlier one I have a 69 472 and a later 500 the don't have script on the valve covers I could be wrong but I done think the made the 472 after73
The mainstay of 500 cubes is the torque. The '76 will run on low octane unleaded all day. It has been documented that the sure fire way of 500/472 is to pull the pan. Either motor as you can imagine will move the weight. And a few dress up items will have looking as good. And if you do it, someone say's 'why a 500 Cad?' 'Cause it's not a 350 chevy....
Bolt-in swap? You'd need the trans with it and I'm sure that's not a bolt-in. 472 was made through '74; 75-76 all were 500s, then in '77 it became a 425. 500 wasn't introduced until 1970 and was standard in Eldorado. Cadillac had a habit of stamping the car VIN on the block so it may be possible in some instances to determine what car the motor came in and give some indication of whether or not it's a 500.
This'll wake it up - http://www.speedwaymotors.com/Comp-Cams-472-500-Cadillac-Cam-and-Lifter-Kit-800-4800-RPM,4590.html And if you wanna go full tilt nutso - http://www.hotrod.com/techarticles/engine/hrdp_0804_541_big_block_cadillac_v8/viewall.html
If it is the factory engine it is a 429, no 472s until 1968. I have a 472 in my 67 cadillac, very different looking engine than the 429. The 429 will have the script valve covers.
ain't no bolt in swap. oil pump/filter interferes with the crossmember. steering box clearance issues, engine length issues.
I was told the 368 shares the same block as the 472/500, therefore it would be a bolt in swap to my mounts and trans (turbo 400), I have been sent information today that states the 500 was made only in years 1970-1976 so this must not be one. and the only way to tell them apart (500/472) is the look at the crank casting numbers. Only 1970 had 10to1 compression and all other years had 8.5 with lower horsepower numbers. Seems he doesn't know what he has, Im glad I do, thanks for the information <TABLE class=wikitable><TBODY><TR><TH>Year</TH><TH>Engine Vin Code</TH><TH>Engine Letter Code</TH><TH>Cubic Inch</TH><TH>Rated Horsepower</TH><TH>Rated Torque</TH><TH>Bore & Stroke</TH><TH>Compression Ratio</TH><TH>Oil PressurePSI </TH></TR><TR><TD>19681969</TD><TD>None</TD><TD>None</TD><TD>472</TD><TD>375 hp (280 kW) @ 4400 rpm</TD><TD>525 lb·ft (712 N·m) @ 3000 rpm</TD><TD>4.300 X 4.060</TD><TD>10.5:1</TD><TD>33</TD></TR><TR><TD>1970</TD><TD>None</TD><TD>None</TD><TD>472</TD><TD>375 hp (280 kW) @ 4400 rpm</TD><TD>525 lb·ft (712 N·m) @ 3000 rpm</TD><TD>4.300 X 4.060</TD><TD>10.0:1</TD><TD>35-40</TD></TR><TR><TD>1970</TD><TD>None</TD><TD>None</TD><TD>500</TD><TD>400 hp (298 kW) @ 4400 rpm</TD><TD>550 lb·ft (750 N·m) @ 3000 rpm</TD><TD>4.300 X 4.304</TD><TD>10.0:1</TD><TD>35-40</TD></TR><TR><TD>1971</TD><TD>R</TD><TD>61E,Q</TD><TD>472</TD><TD>345 hp (257 kW) @ 4400 rpm</TD><TD>500 lb·ft (680 N·m) @ 2800 rpm</TD><TD>4.300 X 4.060</TD><TD>8.5:1</TD><TD>35-40</TD></TR><TR><TD>1971</TD><TD>S</TD><TD>61E,Q</TD><TD>500</TD><TD>365 hp (272 kW) @ 4400 rpm</TD><TD>535 lb·ft (725 N·m) @ 2800 rpm</TD><TD>4.300 X 4.304</TD><TD>8.5:1</TD><TD>35-40</TD></TR><TR><TD>1972</TD><TD>R</TD><TD>62E,Q</TD><TD>472</TD><TD>220 hp (164 kW) @ 4400 rpm</TD><TD>365 lb·ft (495 N·m) @ 2400 rpm</TD><TD>4.300 X 4.060</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1972</TD><TD>S</TD><TD>62E,Q</TD><TD>500</TD><TD>235 hp (175 kW) @ 4400 rpm</TD><TD>385 lb·ft (522 N·m) @ 2400 rpm</TD><TD>4.300 X 4.304</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1973</TD><TD>R</TD><TD>63E,Q</TD><TD>472</TD><TD>220 hp (164 kW) @ 4400 rpm</TD><TD>365 lb·ft (495 N·m) @ 2400 rpm</TD><TD>4.300 X 4.060</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1973</TD><TD>S</TD><TD>63E,Q</TD><TD>500</TD><TD>235 hp (175 kW) @ 4400 rpm</TD><TD>385 lb·ft (522 N·m) @ 2400 rpm</TD><TD>4.300 X 4.304</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1974</TD><TD>R</TD><TD>64E,Q</TD><TD>472</TD><TD>205 hp (153 kW) @ 4400 rpm</TD><TD>380 lb·ft (520 N·m) @ 2400 rpm</TD><TD>4.300 X 4.060</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1974</TD><TD>S</TD><TD>64E,Q</TD><TD>500</TD><TD>210 hp (157 kW) @ 3600 rpm</TD><TD>380 lb·ft (520 N·m) @ 2000 rpm</TD><TD>4.300 X 4.304</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1975</TD><TD>S</TD><TD>65E,Q</TD><TD>500</TD><TD>210 hp (157 kW) @ 3600 rpm</TD><TD>380 lb·ft (520 N·m) @ 2000 rpm</TD><TD>4.300 X 4.304</TD><TD>8.5:1</TD><TD>35</TD></TR><TR><TD>1976</TD><TD>S</TD><TD>66E,Q</TD><TD>500</TD><TD>190 hp (142 kW) @ 3600 rpm</TD><TD>360 lb·ft (490 N·m) @ 2000 rpm</TD><TD>4.300 X 4.304</TD><TD>8.5:1</TD><TD>35</TD></TR></TBODY></TABLE>
Great engines,..... Enough torque to do just about anything you want it to !!! The only one I saw go bad was ran out of oil on a freeway. I believe they put the turbo 400 behind those... 4TTRUK
472/500 bolts up to factory mounts up front but has a different bellhousing pattern than the 429, so it will not bolt up to a TH400 from a 429. My 472 fits fine, plenty of room, just very different looking engine than the 429.
To determine if an engine is a 472 or 500, pull a spark plug, insert a length of rod or small diameter tubing, rotate the crank to BDC or TDC, mark the rod,tube, whatever, at the top of the spark plug hole and continue to rotate to the opposite of where you started, mark the rod again, withdraw, measure the distance between the marks......equals stroke of course. The 500 has .300 greater stroke than a 472. You'll have to research the actual stroke as I don't have that in my memory bank as I type this. Ray
The reason for the big HP diff. on the 8.5 comp engines is because in the early 70's they changed the way the rate them. They are easy to wake up with just a cam and valve springs. If you have the cash the Eldo, aluminum manifold will give you a few ponies but there is nothing wrong with the stock manifold, and a good 800 cfm carb with stock exhaust manifolds will amaze you and all below 4800 rpm. By the way they only weigh about 35 LBS. more than a SBC. and are only about 1 1/2 inches bigger in all directions. I have two 500 Cads that I want to move, one with turbo 400.
I don't even know where to start... Try Maximum Torque Specialties site, plenty of good ( and correct) info: http://www.500cid.com/
we have a 68 472 sitting in the floor waiting for something.if you want go fast goodies contaic the cad. company. on a old add they had out they had a full size 2dr cad.im guessing here but it was about 68 -70, dont remember for sure, anyway this thing was leaving the line with both wheels in the air.thats all they deal with.472-500.
This will tell you everything you need to know. I just picked up a 1968 472 tonight. Pull the valve cover to check the head numbers and check the block number on the rear of the block. I printed this off and took it with me. http://www.cad500parts.com/tech/EngineIDPages.pdf
My book is goofy in that some years it doesn't have detailed engine specs, and I didn't have a Motors manual handy to cross check.
Unless it is just a hulk a 67 Caddy ragtop is probably worth a hell of a lot more as a whole car for someone's project than it is as a doner rig. And as the others said it won't have a 500 in it anyhow.
I believe the stoke on the 500 is 4 1/4" as compared to the 472 at 4 1/16? 1970 was the best year for the 500 ci. Eldorado's=400HP and 525 Fp Torque from the factory--
We have run them on airboats and they are torque monsters. I have a edelbrock intake, cam, and a set of valve springs in tje garage from a boat my brother built then sold before they made it to the engine. I believe there is a company called Potter that makes aluminum heads and many other parts for the 472/500.
What kind of shape is this convertible in? Either way if it has a 500 it wouldn't be the original motor.
Well heres what I found out. It is a 67 cadillac with a 429 ( script valve covers ) BUT he also has a complete 1970 cadillac with a 472 in it, and it says so on the core support, going by the info here it would be a 10 to 1 motor. I did not buy it (yet) and the kicker is he wants scrap price for the car, it has just over 130k miles on the clock, the car is rusted pretty bad. So heres my delima Keep my pefectly running 368 ( 40k miles) installed and needs nothing. add a cam and lifters and make some headers. try to get a few extra ponies out of what I have. Or Buy the 472 freshin it up $$$ and make a real street bruiser out of my little 53. That is where Im at today, If I bought the 472 now it would be awhile before I could afford to freshin' it up. Godspeed MrC.
For the price of the cam-lifters and headers you could freshen up the 472...but you might then need a new rear axle.... .
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