1970 L-78 Camaro CKO block

nrjulin · #1 10-27-2005, 06:07 AM

I'm looking at buying a 70 L-78 Camaro from a friend who has had the car for 10 -20 years. It has been in his garage ever since he bought it and he calls it in rough condition. I've seen much worse in fact my 70 Z started in worse condition before the resto.

I've gone through all the numbers and date codes match (M-21 trans with vin, dist, alt, heads, rear, exhaust manifolds, intake, water pump, intake and starter. It even has the COPO 3 peice spoiler.

My question is the engine block has a CKO code. From what I've researched so far the L-78's with a manual trans were coded with a CJH. I see that CKO is for a 396 with mt but doesn't specify a L-78. Would they have used the CKO block for a L-78? I haven't been able to find the vin on the block yet.

He is pulling all the documentation that he has for the car and he states that he has the POP but no build sheet. I hope to see the documentation soon and see what is there.

Also, any recommendations on what esle I should look for?

**Mr70** · #2 10-27-2005, 06:13 AM

CKO is the correct code for the 402/375HP Man. Trans. L-78.
What's the Prefix & date stamp on the Pass. side Rearend axle tube?
Please share pix of every single possible piece of documentaion with us,as well as the Cowl tag info.
We are here to help.

nrjulin · #3 10-27-2005, 06:21 AM

Here are the pics I have so far. I don't have a pic of the cowl tag yet but here is the info.

ST 70 12487 NOR270003BDY
TR 723 45 G PNT
04C L78

Yes, it is triple green.

Thanks for the help.

nrjulin · #4 10-27-2005, 06:22 AM

Another pic

nrjulin · #5 10-27-2005, 06:25 AM

and the engine. The original exhaust manifolds come with the car.

**Mr70** · #6 10-27-2005, 06:26 AM

Does he have the Dual Snorkle Air Cleaner for it?
Make sure the Ex.Manifolds have A.I.R. provisions.
What red Line is the Tach,if so equipped?
NICE CAR!

nrjulin · #7 10-27-2005, 06:29 AM

He didn't mention it and I didn't see it laying around. I do have an extra one that I got when I was buying parts for my 70 Z. Also it has the correct carb.

nrjulin · #8 10-27-2005, 06:37 AM

The axle has a COX code and a date of 0410G1. It is a locking 3:55

**Mr70** · #9 10-27-2005, 06:39 AM

That's the proper rear.
Can you find out the casting date & casting no. of that CKO block please.

nrjulin · #10 10-27-2005, 06:45 AM

The block casting is 3969854 and the date is J-18-9. The date seems early so that was going to be my next question.

Thanks again.