1969 C-20 396 Intake Casting Number - The 1947 - Present Chevrolet & GMC Truck Message Board Network

red450ih · 08-18-2016, 12:37 AM

I have searched online to no avail for the intake manifold casting number that would have been on a 1969 C-20 396. All I have found so far are casting numbers for cars of similar vintage. Can someone point me in the right direction? Thanks!

GRX · 08-18-2016, 12:11 PM

Only one casting that year. #3933163 ... a 396 intake is a 396 intake.

red450ih · 08-18-2016, 04:37 PM

That casting is not a truck Q-jet cast iron manifold

davepl · 08-18-2016, 05:01 PM

My best guess is 3866961 for 66-69 396 truck.

That's the -only- number I can find that says 396 truck without being raised deck (366,427).

https://www.rapidomarine.com/default..._castings.aspx

Custom/20 · 08-18-2016, 07:11 PM

My 69 C/20 with a 350 came with a 68 drivers side exhaust manifold. So it is possible that you could have a older big block intake.

Casting numbers. http://outintheshop.com/faq/casting/castings2.html

jr1000yarder · 08-18-2016, 08:34 PM

3883948 if your truck block is a 68 block and not a later 69 block

jr1000yarder · 08-18-2016, 08:39 PM

Quote:

Originally Posted by red450ih

That casting is not a truck Q-jet cast iron manifold

Correct

ghalperin · 08-18-2016, 09:07 PM

My 1969 C30 Longhorn 396 motor has 3931067. I was told it's stock and original, but it translates to 325 L-35.

jr1000yarder · 08-18-2016, 09:32 PM

You have a picture of your carb springs on that set up?

ghalperin · 08-18-2016, 10:07 PM

Quote:

Originally Posted by jr1000yarder

You have a picture of your carb springs on that set up?

Posted via Mobile Device
Posted via Mobile Device

**Eagle9502** · 08-18-2016, 10:11 PM

According to my book ("Car & Parts Catalog of Chevy V-8 Engine Casting Numbers 1955-93"), 3931067 is a '69 396 car and light truck cast iron oval port with Q-jet. I have found 3883948 to be '68 car and light truck cast iron oval port with Q-jet. Both of these are high rise intakes.

jr1000yarder · 08-18-2016, 10:23 PM

That sounds right Eagle

jr1000yarder · 08-18-2016, 10:25 PM

Ghalperin, what spring is on the front of the carb. I believe mine to be incorrect. ...

red450ih · 08-20-2016, 12:57 PM

Thanks for the replies. I'll probably just get a 3931067 intake. For some reason I was thinking the truck intake was different for some reason.
Posted via Mobile Device

davepl · 08-20-2016, 01:09 PM

Quote:

Originally Posted by red450ih

Thanks for the replies. I'll probably just get a 3931067 intake. For some reason I was thinking the truck intake was different for some reason.
Posted via Mobile Device

It's different than the 325hp car intake, is it not? The 3866961 casting, so far as I know, is the extra-low-rise intake (like we need the hood clearance). I don't think it's the same as the car unit, but I'm no expert.

I can get you the number right off my factory 1970 unit, but that's newer than you want, I think.

ghalperin · 08-20-2016, 01:29 PM

Quote:

Originally Posted by jr1000yarder

Ghalperin, what spring is on the front of the carb. I believe mine to be incorrect. ...

I wish that I could help, but mine is MIA.

Posted via Mobile Device
Posted via Mobile Device

Dirt's72 · 08-20-2016, 06:01 PM

Quote:

Originally Posted by ghalperin

My 1969 C30 Longhorn 396 motor has 3931067. I was told it's stock and original, but it translates to 325 L-35.

My 69 custom camper 20 with the original 396 is 3931067.
Posted via Mobile Device

08-18-2016, 12:37 AM	#1
red450ih Registered User Join Date: Mar 2001 Location: Nashville, Tennessee Posts: 225	1969 C-20 396 Intake Casting Number I have searched online to no avail for the intake manifold casting number that would have been on a 1969 C-20 396. All I have found so far are casting numbers for cars of similar vintage. Can someone point me in the right direction? Thanks! __________________ GMC

08-18-2016, 12:11 PM	#2
GRX Registered User Join Date: Jul 2010 Location: MD Posts: 1,937	Re: 1969 C-20 396 Intake Casting Number Only one casting that year. #3933163 ... a 396 intake is a 396 intake. __________________ 1969 c-10 Step Side Long Bed. I-6 250cid = = 1969 Pontiac GTO hard top. 400, 4-speed.

08-18-2016, 05:01 PM	#4
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: 1969 C-20 396 Intake Casting Number My best guess is 3866961 for 66-69 396 truck. That's the -only- number I can find that says 396 truck without being raised deck (366,427). https://www.rapidomarine.com/default..._castings.aspx __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

08-18-2016, 07:11 PM	#5
Custom/20 Registered User Join Date: Mar 2016 Location: Puyallup, WA Posts: 235	Re: 1969 C-20 396 Intake Casting Number My 69 C/20 with a 350 came with a 68 drivers side exhaust manifold. So it is possible that you could have a older big block intake. Casting numbers. http://outintheshop.com/faq/casting/castings2.html Last edited by Custom/20; 08-18-2016 at 07:20 PM.

08-18-2016, 08:34 PM	#6
jr1000yarder Registered User Join Date: May 2016 Location: Pa Posts: 1,278	Re: 1969 C-20 396 Intake Casting Number 3883948 if your truck block is a 68 block and not a later 69 block __________________ IT IS WHAT IT IS Last edited by jr1000yarder; 08-18-2016 at 10:23 PM.

08-18-2016, 04:37 PM	#3
red450ih Registered User Join Date: Mar 2001 Location: Nashville, Tennessee Posts: 225	Re: 1969 C-20 396 Intake Casting Number That casting is not a truck Q-jet cast iron manifold __________________ GMC

08-18-2016, 09:07 PM	#8
ghalperin Registered User Join Date: Jul 2016 Location: Newport Heights, CA Posts: 1,000	Re: 1969 C-20 396 Intake Casting Number My 1969 C30 Longhorn 396 motor has 3931067. I was told it's stock and original, but it translates to 325 L-35. __________________ Glenn 1960 Burro Corvair/VW Buggy - Factory made in Santa Ana, Ca 1929 Ford Model A Roadster - traditional pre-war banger hot rod

08-18-2016, 09:32 PM	#9
jr1000yarder Registered User Join Date: May 2016 Location: Pa Posts: 1,278	Re: 1969 C-20 396 Intake Casting Number You have a picture of your carb springs on that set up? __________________ IT IS WHAT IT IS

08-18-2016, 10:11 PM	#11
Eagle9502 Senior Member Join Date: Dec 2015 Location: Brooklet, Georgia Posts: 831	Re: 1969 C-20 396 Intake Casting Number According to my book ("Car & Parts Catalog of Chevy V-8 Engine Casting Numbers 1955-93"), 3931067 is a '69 396 car and light truck cast iron oval port with Q-jet. I have found 3883948 to be '68 car and light truck cast iron oval port with Q-jet. Both of these are high rise intakes.

08-18-2016, 10:23 PM	#12
jr1000yarder Registered User Join Date: May 2016 Location: Pa Posts: 1,278	Re: 1969 C-20 396 Intake Casting Number That sounds right Eagle __________________ IT IS WHAT IT IS

08-18-2016, 10:25 PM	#13
jr1000yarder Registered User Join Date: May 2016 Location: Pa Posts: 1,278	Re: 1969 C-20 396 Intake Casting Number Ghalperin, what spring is on the front of the carb. I believe mine to be incorrect. ... __________________ IT IS WHAT IT IS

08-20-2016, 12:57 PM	#14
red450ih Registered User Join Date: Mar 2001 Location: Nashville, Tennessee Posts: 225	Re: 1969 C-20 396 Intake Casting Number Thanks for the replies. I'll probably just get a 3931067 intake. For some reason I was thinking the truck intake was different for some reason. Posted via Mobile Device __________________ GMC



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.