[CHEVY70]

Is My Chevy A 350 With This Casting Number 3970010?

[lg1969]

It's used on 69' 302 Z/28 4 bolt main
327 truck and industrial
350 from 1969 - 1980
The block can be either 2 or 4 bolt main.
You have to look at suffix letter in front of the block on the pass. side. Behind the alt. There two or three letters. That will tell you the history of the motor.

[Torque454]

Just as lg1969 said it COULD be a 302 or 327, but it is most likely a 350, Ive had three of the 3970010 blocks and they were all 350s.

[327 / 350 hp]

Originally Posted by CHEVY70

Is My Chevy A 350 With This Casting Number 3970010?

Hi chevy70 . just like the boys are saying, it all depends on which crank (stroke) you are using. I have two blocks one is 327 other is 350. your crank has casting # on it...1182--350,,,,,1174---307,327.. Good luck jim

[Daileyviper]

If it is a 327 there will be no bolt holding the balancer on. Try this link to help
www.mortec.com

[BIGROD559]

Originally Posted by lg1969

It's used on 69' 302 Z/28 4 bolt main
327 truck and industrial
350 from 1969 - 1980
The block can be either 2 or 4 bolt main.
You have to look at suffix letter in front of the block on the pass. side. Behind the alt. There two or three letters. That will tell you the history of the motor.

i look for the suffix numbers behind the alt. on a lip of the block i got 13R418310 and the V1012CKK what do though numbers mean?

[ericnova72]

I can't tell you the exact application it came out of, someone else here I'm sure can.

I can tell you this, the "CKK" is the application code, but the fact that it is 3 letters means it is 1970 or later, the '69-earlier are 2 letter codes. Being that it is 1970 or later, it has to be a 350 as no 327 or 302 engines were built after 1969 and the 2 letter code time period.

[va4cqd]

Code Year CID Vehicle HP RPO Trans Carb Comments
CKK 72 350 Nova 200 L-48 3-Spd 4-Brl
CKK 72 350 Chevelle 175 L-48 Manual 4-Brl
CKK 72 350 Camaro 200 L-48 Manual 4-Brl
CKK 73 350 Nova 145 L-65 TH 350 2-Brl A.I.R.
CKK 73 350 Chevelle 145 L-65 TH 350 2-Brl A.I.R.
CKK 76 350 Nova 170 LM-1 TH 350 4-Brl
CKK 77 350 Chevelle 170 LM-1 TH 350 4-Brl