The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- Engine & Drivetrain (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=24)

- - What is my Engine? (https://67-72chevytrucks.com/vboard/showthread.php?t=748002)

LostMy65

10-07-2017 08:13 PM

What is my Engine?

2 Attachment(s)

From the number 3896944 I deduced it is a 283.
Does the other casting tell us the date?

LostMy65

10-07-2017 08:22 PM

Re: What is my Engine?

Doing more research on this site:
http://chevellestuff.net/qd/block_casting_by_year.htm

3896944 1967 283 195 Tonawanda cast block was used only for the 1967 model year and was the last 283 design.

.
Maybe my block was cast July 1966 and then used in a 1967 vehicle?

Alex V.

10-07-2017 09:41 PM

Re: What is my Engine?

The casting date is in the second pic - is it C76? That should translate to March 7th of '66.

LostMy65

10-08-2017 12:37 AM

Re: What is my Engine?

Quote:

Originally Posted by Alex V. (Post 8056062)

The casting date is in the second pic - is it C76? That should translate to March 7th of '66.

Yes, I'm pretty sure now that it was cast in 66. The part that was confusing me was most sites were putting the 3896944 as a 1967 engine, but because it's either G76 or C76 it must have been put in a 67 that was built in 66. Kinda like my 2010 CRV I bought in 2009.

Alex V.

10-08-2017 09:17 PM

Re: What is my Engine?

March of '66 is pretty early to be correct for a '67. July is probably possible but someone sharper on such things than me will have to confirm.

Captainfab

10-08-2017 10:59 PM

Re: What is my Engine?

The casting date is just that, the day it was cast. That does not mean that it was machined and assembled right away. Whether it is a '66 or a '67 makes no difference IMO.

LostMy65

10-09-2017 09:14 AM

Re: What is my Engine?

Quote:

Originally Posted by Captainfab (Post 8056802)

The casting date is just that, the day it was cast. That does not mean that it was machined and assembled right away. Whether it is a '66 or a '67 makes no difference IMO.

Quote:

Originally Posted by Alex V. (Post 8056697)

March of '66 is pretty early to be correct for a '67. July is probably possible but someone sharper on such things than me will have to confirm.

What I do gather from all this is the motor isn't the one my 65 would have originally came with.

LostMy65

10-09-2017 10:34 PM

Re: What is my Engine?

I found this while searching for head casting numbers:
http://www.mortec.com/castnum.htm

Captainfab

10-09-2017 10:40 PM

Re: What is my Engine?

You are wanting a '65 283 because?????

Quote:

Originally Posted by LostMy65 (Post 8056976)

What I do gather from all this is the motor isn't the one my 65 would have originally came with.

LostMy65

10-09-2017 11:12 PM

Re: What is my Engine?

Quote:

Originally Posted by Captainfab (Post 8057580)

You are wanting a '65 283 because?????

No, just was curious if what I have is the original engine that came with my 65.
I see now it's not.

Captainfab

10-10-2017 10:48 PM

Re: What is my Engine?

Was the original '65 283 in the truck when you sold it years ago?

LostMy65

10-11-2017 10:42 AM

Re: What is my Engine?

Quote:

Originally Posted by Captainfab (Post 8058394)

Was the original '65 283 in the truck when you sold it years ago?

I really don't know.
It had a 283, but I never really paid any attention to block numbers and such back then. I was 17 years old then.

LostMy65

07-04-2022 12:29 AM

Re: What is my Engine?

2 Attachment(s)

I figured out this week that the heads on my 283 are 305 heads.

LostMy65

07-04-2022 12:35 AM

Re: What is my Engine?

2 Attachment(s)

More pics of the heads

AcampoDave

07-04-2022 06:03 PM

Re: What is my Engine?

Not just any 305 heads. The 416 heads are off the high output motor. They are the ones you want. I use them myself on the 283 in my '66.

LostMy65

07-04-2022 07:46 PM

Re: What is my Engine?

Quote:

Originally Posted by AcampoDave (Post 9097693)

Not just any 305 heads. The 416 heads are off the high output motor. They are the ones you want. I use them myself on the 283 in my '66.

Thanks

All times are GMT -4. The time now is 10:47 PM.