High Performance Big Block Cadillacs
November 22, 2017, 01:10:53 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: SMF - Just Installed!
 
   Home   Help Login Register  
Pages: [1] 2 3 4
  Print  
Author Topic: 1959-1962 Caddy 390 specs  (Read 26799 times)
c322348
C2
**
Posts: 55



« on: February 05, 2008, 09:31:15 PM »

Anyone have detailed specs? Rod length, compression height, main and rod journal diameters, head volume, piston dish volume, etc? Basic bore, stroke and compression ratio I found.

I'm usually pretty good at searching the internet, but have struck out!

One more question, will 429 heads (thru '67) fit an early 390? Are the head castings interchangeable from the 331 thru the 429?

Thanks!
Logged
Maddog
Guest
« Reply #1 on: February 06, 2008, 05:36:08 AM »

Sir: Noone here builds those engines---we start at 68 and go thru 78 or so. You would be far better off going to www.modifiedcadillac.org for your questions. Click on the discussion link and do a search. Stampie is the moderator over there. His url is stampie.com. His email is stampie@stampie.com  Regards, Charles
« Last Edit: February 06, 2008, 05:42:54 PM by Maddog » Logged
c322348
C2
**
Posts: 55



« Reply #2 on: February 06, 2008, 12:14:53 PM »

Excellent! Thanks fopr the tip.
Logged
Monzallac425
C4
****
Posts: 491


Salinas, Puerto Rico


« Reply #3 on: February 06, 2008, 04:09:45 PM »

 Still can't find one?   Heres a 365  Wink  http://phoenix.craigslist.org/pts/536829133.html    Doug in AZ Cool 
 
Logged

Monzallac 425 ....now on its 4th owner....Its still alive.............Somewhere.........?
c322348
C2
**
Posts: 55



« Reply #4 on: February 06, 2008, 04:24:21 PM »

Hey, thanks for that Doug!

I found a 1961 390 short block for free   Grin  here locally, so I'll pick that up this weekend. I'll still need a pair of heads (the originals were cracked) and likely some other small parts. That's why I'm trying to find out what's interchangeable between the years.

The engine is going in a 1950s era kit car. I was going to use a 500, and even bought one a few years back, but decided it was better to return it to pretty much the way it was in 1957. A 390 should look almost exactly like the 331 it was originally built with, but I couldn't resist a few extra cubic inches/horses.

Hopefully nobody here minds if I still lurk. I was on that "other" board since the CaddyCarlo days, but got kind of fed up with the know it all attitude over there. Much friendlier here!
Logged
Monzallac425
C4
****
Posts: 491


Salinas, Puerto Rico


« Reply #5 on: February 06, 2008, 04:37:04 PM »

 Try this it may help .......................... http://en.wikipedia.org/wiki/cadillac_v8_engine.

I'm sure the others wont mind , maybe JM will make a section for you here.

I hear ya  Undecided , I view the other forum , it has alot of great info but alot of bickering too , so I didn't join.

Try www.car-part.com for your head search Wink Its like a Hollander online but beware, the stuff listed isn't always in stock  ( old inventory - missing - not updated)

Doug in Az Cool
« Last Edit: February 06, 2008, 04:40:47 PM by Monzallac425 » Logged

Monzallac 425 ....now on its 4th owner....Its still alive.............Somewhere.........?
~JM~
Shop Keeper
C5
*****
Posts: 1853


« Reply #6 on: February 06, 2008, 05:29:33 PM »

c322348,

I'm glad to hear that you like the atmosphere over here & of course you're welcome to hang out.

I kind of feel bad that this board doesn't have more to offer you in a way, but that's an area that I know nothing about.

Stampie is about the sharpest guy I can think of for your era of Cadillac engines. If he doesn't know what you're looking for. He most likely knows someone that does.

Thank you
~JM~
Logged

PS. You don't have enough cam. Grin

...Summit has a kit for $99.... Shocked
c322348
C2
**
Posts: 55



« Reply #7 on: February 07, 2008, 06:00:44 PM »

No problem. I still have a 500 sitting in the garage that I was planning to use in this project before I decided on the 390. Maybe I'll use it for the next project instead, whatever that may be!

In case anyone is interested, this is the very car that I'm restoring:

Logged
~JM~
Shop Keeper
C5
*****
Posts: 1853


« Reply #8 on: February 07, 2008, 06:20:14 PM »

What a cool car...  and story!  Cool

Logged

PS. You don't have enough cam. Grin

...Summit has a kit for $99.... Shocked
sMiles
C4
****
Posts: 321


« Reply #9 on: February 07, 2008, 07:02:12 PM »


Please post more pics of the engine, if you have them,  I would love to see more detail of the intake logs,  side drafts,  valley cover.

What a wonderful find for you,  a piece of local history with back ground from its original time.
« Last Edit: February 08, 2008, 08:32:03 AM by sMiles » Logged
Stiney
C3
***
Posts: 114



« Reply #10 on: February 08, 2008, 06:52:52 AM »

Cool car, reminds me a lot of a Austin-Healey 100-4, '53-'54

Logged
c322348
C2
**
Posts: 55



« Reply #11 on: February 08, 2008, 06:42:05 PM »


Please post more pics of the engine, if you have them,  I would love to see more detail of the intake logs,  side drafts,  valley cover.

What a wonderful find for you,  a piece of local history with back ground from its original time.
I've still got the intake manifolds and carbs packed away, but the original motor was junked in about 1962...    Sad
Logged
dave brode
C5
*****
Posts: 1074


Best of 11.66, 113.96, 1.59 sixty


« Reply #12 on: February 08, 2008, 08:08:32 PM »

Yes, very cool. At first instant of a glance, I thought Allard!

have you learned much on the early engine parts interchanging?


Dave
Logged

3960 lb '71 C-10. 11.7-1 CR 514". PEP I beam rods floating MTS 18cc dish Probes, Elgin solid cam, home ported heads, MTS 2.19/1.84", Potter/Probe shaft rockers, edel 2115, 4781 850. Switch-pitch TH400, 12" 1800/3200 Tri-Shield convertor, 4.30 gears. Best so far of 11.66, 114.8 mph and 1.59 sixty
c322348
C2
**
Posts: 55



« Reply #13 on: February 08, 2008, 10:43:45 PM »

Absolutely nothing unfortunately. I've read that the deck height was reduced for the new 390 and that the heads were the same, but no real world confirmation that they are interchangeable. Maybe they changed to slipper pistons and reduced the deck height but the crank and rods are the same?

Does anyone have access to a Hollander manual? Would it contain info like that?

I know that Isky makes performance cams for this engine, but does anyone have off the shelf forged pistons?
Logged
dave brode
C5
*****
Posts: 1074


Best of 11.66, 113.96, 1.59 sixty


« Reply #14 on: February 09, 2008, 09:11:27 AM »

Absolutely nothing unfortunately. I've read that the deck height was reduced for the new 390 and that the heads were the same, but no real world confirmation that they are interchangeable. Maybe they changed to slipper pistons and reduced the deck height but the crank and rods are the same?

Does anyone have access to a Hollander manual? Would it contain info like that?

I know that Isky makes performance cams for this engine, but does anyone have off the shelf forged pistons?

Imo, a hollander would be very helpful.

$100 says there is no off the shelf forging for any pre '68 caddy engine. Any piston maker could do pistons for you, but if I was working on a pre '68 caddy build, I'd want to know what fits what, and what is out there as far as stock type replacement parts first. If you can find out the pin size, dish volume, compression hiegth etc, you might find a shelf forging that will work from something else.

dave
« Last Edit: February 10, 2008, 08:32:37 PM by dave brode » Logged

3960 lb '71 C-10. 11.7-1 CR 514". PEP I beam rods floating MTS 18cc dish Probes, Elgin solid cam, home ported heads, MTS 2.19/1.84", Potter/Probe shaft rockers, edel 2115, 4781 850. Switch-pitch TH400, 12" 1800/3200 Tri-Shield convertor, 4.30 gears. Best so far of 11.66, 114.8 mph and 1.59 sixty
Pages: [1] 2 3 4
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!