Hot Rods Let's talk Cadillac 331's, 365 and 390's

Let us know what you find out.

 

Thanks for the info. I'll definitely be checking this out.

 

https://www.jalopyjournal.com/forum/threads/331-cadillac-build-question.1051081/

 

Another one I found.
https://www.jalopyjournal.com/forum/threads/kustom-cadillac-tripower.1098146/

 

Wow this is only the second alluminum 4bbl intake I've seen. And the last one was a boat intake. I"d have been all over it for $255 and I don't have a cad motor at the moment!

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does anyone know if the balancer on a 56 365 will work on a 54 331? 49-62 the same?

 

49-56 is 363-1726
57 is 363-1727
58-62 is 363-1728 without A/C and 363-1729 with A/C

All part numbers are without the pulley.

 

I didn't really want a conversation piece. I wouldn't have used it on anything, so I moved on.

 

Thank you!!

 

I looked for years for an aluminum 4bbl. I'm not really in the market for conversation pieces either, but i'd totally have set that back for a future build. I know I'll have another cad eventually

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Got some good news tonight from Offy.

 

Thanks for that news! cool


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I saw that,,,,so stoked!

 

That’s gonna kill the holy grail collectors and eBay profiteers.

I’ve been holding off taking the 390 to the machine shop, because I thought they would never actually finish. I bet they are glad to go to production, just so I will shut up.

 

I wonder if Edelbrock will follow suit?


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I doubt it. I think the Offy is the best looking 3x2 ever made for any engine.

 

Anyone tried this cam?
https://www.ebay.com/itm/Cadillac-6...9:g:3woAAOSwhwBZ333Q:sc:UPSGround!73064!US!-1
Just wondering how it performed and sounds?

 

The 390 Cad in my '40 contains an "Isky 270".
Other than a 650 Holley & an aluminum wheel it's a stock build.
Stock with the cam & 10:1 plus compression makes it a nice torque motor, great mid range, like the ad says.
With that said after reading your posts, this isn't the cam for you, not enough noise at the tailpipe.

 

I don’t know if it will handle too much more with the limitations on the valve springs. Maybe a beehive spring would help?

Post up a video of the exhaust notes!

 

What valve springs and retainers are you using with the Isky 270?

 

With the Isky 270, I used new stock springs with a .060 shim.
Retainers are stock with the umbrellas cut off.
Guides are cut to use good seals plus gain clearance for the retainer at full lift.
Works for me.

 

Thanks! I have Isky springs for mine, but haven't gotten around to dealing with the retainers yet...

 

Tying in another Caddy thread. Enjoy!
https://www.jalopyjournal.com/forum/threads/cadillac-engines-post-a-pic-of-your-331-365-390.1130746/

 

FYI, for some of you that have looking for ARP rod bolts, they have started carrying a kit for 49-62 Caddys. They may have always had this, but I just found it.

https://arp-bolts.com/kits/ARPkit-detail.php?RecordID=5333

 

Another old Caddy thread.
https://www.jalopyjournal.com/forum...c-59-62-390-block.626365/page-2#post-12856641

 

A new Caddy thread- https://www.jalopyjournal.com/forum/threads/cadillac-331-water-pump-rebuild.1133894/

 

HELLO,
I'M LOOKING FOR SOME BLOCK DIMENSIONS TO BUILD A SCALE REPLICA OF AN EARLY CADILLAC ENGINE 49-62, WOULD ANYONE KNOW THE LENGTH & WIDTH OF THE OIL PAN SURFACE, VALLEY PAN SURFACE & THE HEIGHT OF THE BLOCK FROM THOSE TWO SURFACES?
ANY INFO WOULD BE GREATLY APPRECIATED

THANK YOU

 

Oil pan surface is 22” x 11-1/8”
Valley cover surface is 18 -1/2” x 6-1/4”
Height between the two is 8-3/4”

Let me know if you need any more dimensions.

 

THANK YOU, SENT YOU A PM

 

maby i missed the post but..i have a stock 1955 331 cad eng that i am putting in my 34 rdst w/edelbrok 3x2, its bored for 3 ford carbs, i have 3 97 carbs when running w/progressive link, with just the center carb be enough or will it run lean??? manifold has a large enough carb base area that i could drill for rochesters if need be. running a 1960's ford hd b/w overdrive and 4.11 rear . ?????