Recently I found a fantastic deal on some parts but then there was a catch I had to buy the motor (350) haha. I thought since the cost of the parts even with extra for the motor was still unreal I couldn't lose. Now I figuered at best the block would end up being yard art. After getting home and unrapping the motor I was instantly wounding if I may have got a decent block since there wer the signs you like to see (1 coat of paint, 0010 casting #, 4 bolt main, and no sign of Machineing) Looking ferther I saw there was NO Vin # anywere! so I ran the suffix and came up BBC?
The car the motor came out of was a 69 Camaro with a OD reading of 8000 miles lol the owner not being able to turn a wrench just bought a crate motor and had it dropped in. the car is now a nice clone.

I have a few of the 0010 blocks and know were, when and what they came from this is the first one that has me stumped and bad. After messuring the bores I belive 8000 miles is about right (On this Mill) since I could get away with a flex hone and fresh rings to keep it STD bore.
There wasnt a spec Of sludge in this motor. The only things I can say for sure is it has a aftetermarket cam and the frost plugs are to shinny to be old. Here are some numbers

Block casting # 3970010
Suffix # V0206AAS wich comes up in every book as a BBC
Crank is a cast
Rods are "O" casting (PM?)
Pistons are Bonalite 3946886 (No info anywere on these???)
Crane Cams CCH-304-2-NC 5996 (old part number)
Heads are 461's 1.94/1.50 Double Hump (no assesory holes)

Any help with this would be fantastic

Cheers

 

What does BBC mean?

 

BBC= Big block Chevy

Cheers

 

That's what I thought . Course it's not a 350 and the heads are small block heads.
Sure about that 69 only having 8000 miles?

 

I can't be sure about anything on the car since I only no what little the fella was told when he got it and you have to take anything he was told with a grain of salt. What I do no for sure is, It is a 0010 block (only came in small block) it's a 4 bolt main. Heads are right for the year and could have been on that motor in that 69 as well as the motor main bearings are the vary old Part # (Clevite 77) that would have been used nothing is machined Crank, rods, or block. Its the suffix number and the lack of a vin#
Also the pistons have a casting GM 1 and after looking through every book etc.. I can't find a single scrap of info on a Bonalite piston EVER being used in the SBC's.
This motor is getting built up and besides the block nothing will be used on this one its just the hunt for info that has hooked me hahaha

 

Definitly small block casting number. Could be 350 or 302 which is the same block anyway. No VIN on the deck stamping could be some type of counter exchange block although they usually began with CE on the suffix code. Dont believe Chevy ever made BBC double hump heads. What is the length of the stroke on the crankshaft? Is it a 302?

 

I was thinking it may have been a 302 but the crank # is 3932442
wich in the books is 350 with a 3.48 stroke thin parting line said it was cast. main journals came out to 2.446-2.449. Rod journals are from 2.096-2.101 Rods are O rods wich I belive are the same as X (powdered Metal)
Havn't got to messure the rods yet

I am glad its a 350 since the 302 has to be launched at twice the rpm's wich is hard on the drive line.Now some 68/ 69 Z28 302 Med journal ( 2.45 mains/2.10-inch rods) had a 3 inch stroke but the crank is rong.

 

The engine you have is not an original "as it came from the factory". The heads are 327's, 1968 vintage or older as evidenced by the casting # and lack of accessory holes (look for the date castings on top). Some 68's did have the holes only on one end though. The "double hump" casting was used on both performance heads and standard heads, and the smaller valve sizes means they aren't performance heads. Double hump heads are very misunderstood, as many think that marking automatically makes them "hi performance" heads. Nope, but you can machine them to be. And chances are pretty good the Camaro had 108k...208k...308k, etc. miles, and the engine you have has been recently rebuilt (the reason it looks so good). Unless you have solid documentation of some kind showing the car really has 8k miles, you can figure it does not. Besides, who is going to swap on standard 327 heads to a 42 year old car that only has "8k miles"? You guessed it, nobody in their right mind. Also, without a VIN on the block, there's no way of knowing if that engine was even the original one that the car came with. Not tryin to be a party-pooper, just being realistic.

 

Not to worry about being a party popper I have all the parts ordered or on hand to biuld this motor and nothing will be used but the block. Belive me when he told me It had to be a package deal I thought nice more worn out .060 over junk to put in the pile. Then I unrapped it and tor it down and besides the the fact that there has Never been any machining on any parts. Cylender bores from top to bottom all came in at the bigest differance of 4.0040-4.0049 except for the one cylender that had a top ring broke that came in on the outter cylender wall side only at 4.009 so just a hair under 10 thou out right at the top. crank came out at 2.446-2.449 on mains and Rod journals from 2.096-2.100. the bearings are clevite 77 and there part number hasnt been used in years same as rod bearings. The only thing not stock is the cam and lifters again the part number is also a number they don't use "Crane cams #CCH-304-2-NC"
I cant count how many SBC mills I have torn down and have never seen a piston called a bonalite Pn 3946886 with a GM1 casting in the underside.As for the heads I havn't even considered a camel bump head since the mid 80's and even then only 2.02/1.60 these are only good for for correct resto's or rat rod guys who like old junk lol. I have just never seen so many wierd things on one motor if it was just one thing,the vin# not there ok, a BBC suffix yah ok, pistons I am told wer never in a SBC ok, never been machined not likly but ok, all of it WTF hahaha
It really has nothing to do with a correct motor or how much its worth its the fact that No one has an answer.

 

There are a couple of things with the AAS suffix code on the 350 block...other than it can't be found for some reason. GM started using the three letter suffix codes on the sbc in 1970.
And, a block with the AA* suffix code is a truck engine.