ID the block

[zicc1835]

these are the numbers stamped on the pad on the front of the block I can't get a camera in to see casting numbers Power Glide kick down bracket is in my way ...im searching .....this is a 69 c-10 half ton and the glide is original and on the SPID I didn't and can't get any info from the PO or the PO before him someone did a recent resto that's just OK .... the heads are interesting and what's got me wondering 327 ....69s came with IL6 307 350s not sure or is this a early 69 with a leftover 327 ??? or a 350 that's been upgraded some what ?

PS in my younger days if you had the number stamps you could put any Id# you wanted on that pad

[zicc1835]

I looked here ????? I know no more now than I did before

https://nastyz28.com/sbchevy/sblock.html#ecode

[Steeveedee]

Can't tell you about the block, but those are Fuel Injection/high performance heads.

[zicc1835]

Originally Posted by Steeveedee

Can't tell you about the block, but those are Fuel Injection/high performance heads.

thanks yes I know! that's exactly why in trying to identify the block they are sitting on... when I get some time ill take a V cover off and see what flavor the heads are you probably know better than I they made a few versions of thus HUMP Heads

[72c20customcamper]

Never mind

[zicc1835]

beat me too it

[Steeveedee]

Originally Posted by zicc1835

thanks yes I know! that's exactly why in trying to identify the block they are sitting on... when I get some time ill take a V cover off and see what flavor the heads are you probably know better than I they made a few versions of thus HUMP Heads

Those will have 2.02/1.60 or 1.95/1.60 diameter intake/exhaust valves. Not sure there is any way to tell by looking at the casting numbers, but it's been a dog's age since I worked with anything like that...like 30-40 years. There isn't much room inside the head for the 2.02/1.60 valves. They are really close to each other and the thin area was prone to cracking.

[RustyPile]

Using the last 3 digits (letters) of the stamping, search here for the original configuration, year of the engine, and what vehicles it was installed.

http://camaros.org/pdf/LimeBook.pdf

[Mike C]

What I could find is the HC suffix code was for a 65-66 250hp 327 with 4 barrel carb and power glide transmission. This would most likely have been in a Chevelle. This was in the era of 2 digit suffix codes, but for some they had 3. HCH was the same engine with a Holley 4 barrel and HCR was the motor with a Rochester.

This was an interesting find as I had not seen that before. You learn something new all the time.

[MARKDTN]

Intake is '68 and back with a plug in the filler hole. Can you see a date on the intake?

[zicc1835]

Originally Posted by MARKDTN

Intake is '68 and back with a plug in the filler hole. Can you see a date on the intake?

I will look tomorrow thank you

[zicc1835]

I appreciate all of you helping with this.... learning all the time too I knew that plugged manifold meant something just didn't know what...... what makes this board and its members who we are and always looking to help
thanks again we will come to a conclusion (break the code) on this at some point I now have to look at the carb see if its a ROTENCHESTER to be continued
Happy Healthy New year to all