Lost in engine! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Nima** · 05-31-2004, 09:46 AM

This is the picture of my engine and this is the number on the block behind the block on driver side: 3970010. When I used a book or one of the web site to decode this nember, I tought I have 327 engine. As far as I know, this is orginal engine on this truck (I am not 100% sure) and also as far as I know 1967 chevy trucks didn't come with 350 engines. 350 came out later. Now, when I posted a picture of part of my engine to find an answer to different problem, looks like some of memebrs have different opinion about this engine. I would appreciate any input since I am trying to buy parts for this engine I guess I need to know what it is.
Thanks.

**FRENCHBLUE72** · 05-31-2004, 09:57 AM

69-79 350 car truck and corvette a very poplular motor as all three of my 350 powered rig's have the same casting #

Russell · 05-31-2004, 09:59 AM

the 010 is a 350 casting number

jef5150 · 05-31-2004, 10:06 AM

heres a link for casting #s http://www.mortec.com/castnum.htm 3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4
can you get the head casting #s? jeff

dubie · 05-31-2004, 10:09 AM

yep, looks to be a 350 with a 2 barrel carb on it

**Nima** · 05-31-2004, 10:09 AM

Thanks guys. In this case, this truck's engine is not the original one!.

**kwmech** · 05-31-2004, 11:27 AM

Judging by the valve covers, the 350 appears to be from the late 70s or early 80s with the 327 intake manifold. There is a stamped code on the front of the block right in front of the right hand cyl head. These are the #s or letters that will tell you what it came out of.

**Nima** · 05-31-2004, 12:18 PM

Well, I usually don't act this dum! but the truth is I can not find this number infront of the engine!. I am gona post some picture of the area that I am looking at at in few minutes.
Thanks though.

**Nima** · 05-31-2004, 12:24 PM

Here are some pictures. Am I suppose to see the number around these areas?
Your help is greatly appreciated. Thanks.

cdowns · 05-31-2004, 12:28 PM

chevy didn't make blue engines till the late 70's 77 ithink was the first year

Hutch · 05-31-2004, 05:32 PM

Nima
There are usually two sets of numbers on this pad in front of the passenger side head.
One set will tell you what type of vehicle the motor originally was in. If it starts with a T then it is a truck motor, if it starts with a C then a car motor.
The second set will contain a partial VIN to tie it to a specific vehicle.

In a lot of cases these numbers are gone due to the fact that the block has been machined or shaved at some point in its life.

These are good blocks some are 2 bolt mains and other are 4 bolt mains. You will have to drop the pan to figure this out.

**Nima** · 05-31-2004, 06:09 PM

Thanks hutch. I guess my engine stays a mystery for now. At least I am happy that I am not blind! since I didn't see any number. By the way, what did you mean by dropping the pan? Do you mean oil pan?
Thanks again.

71-longbed · 05-31-2004, 06:12 PM

underneath that blue paint there should be number .... thats how i found out my 350 was original with 244k miles

Hutch · 05-31-2004, 06:20 PM

Quote:

what did you mean by dropping the pan? Do you mean oil pan?

Yes
You might try removing some of the paint from the pad to see if it was just painted over.

**Nima** · 05-31-2004, 06:22 PM

I scraped the paint. There was nothing there. Actually there was some evidence of sanding or brushing on it. Now the question is: I can not do anything to do to this engine until I find out what it is exactly. I have carburator problem which I wanted to take care of it by replacing the carb to 4 bbl. Also I was about to chage the intake too. This sucks!.
Thanks guys.

*Randy70C-10* · 05-31-2004, 06:33 PM

Stick a 4 barrel on it! Doesn't matter what it is. Put a 600 cfm carb on it, great all-around carb for any small block. The intake manifolds are interchangeable so you won't have any problems. You might have to change your alternator bracket though.

72C203503ONTHETREE · 05-31-2004, 06:48 PM

Actually, that blue is not the original color blue Chevy used. I had a 81 Z28 and it had the blue engine(stock) but was a lighter blue. Also, the heads after 77 were the lightwieght heads are not good for rebuilds. The oil dipstick is also on the wrong side for a pre 78 engine. Thats probably a 350 out of a caprice or Camaro.

Cethern · 06-01-2004, 12:49 PM

I'm not near my 72 to go and look at my heads. But when I look at his heads I do not see any assy. Holes for stuff like the alt. would that mean the heads he has on the motor are old style? The intake is old style. My guess is someone pulled the motor and and put what ever they had laying around to make it run then used a can of ford blue to top it off. But thats just a guess.

Cethern

70ChevyLongbed · 06-01-2004, 01:54 PM

Randy's right... you can change the carb and intake regardless of which small block it is... just go easy with what you choose. My 500cfm is a great little carb too

72C203503ONTHETREE · 06-01-2004, 09:33 PM

Man, Im blind, yes there are no bolt holes in the heads so they are the good ones, at least rebuildable. They are pre 69 heads at least, probably the original 327 heads. If theres no numbers on the pad in front of the right head that means the block has been decked and most likely the shortblock was at least rebuilt.

05-31-2004, 09:46 AM	#1
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	Lost in engine! This is the picture of my engine and this is the number on the block behind the block on driver side: 3970010. When I used a book or one of the web site to decode this nember, I tought I have 327 engine. As far as I know, this is orginal engine on this truck (I am not 100% sure) and also as far as I know 1967 chevy trucks didn't come with 350 engines. 350 came out later. Now, when I posted a picture of part of my engine to find an answer to different problem, looks like some of memebrs have different opinion about this engine. I would appreciate any input since I am trying to buy parts for this engine I guess I need to know what it is. Thanks. Attached Images

05-31-2004, 09:57 AM	#2
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,594	69-79 350 car truck and corvette a very poplular motor as all three of my 350 powered rig's have the same casting # __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

05-31-2004, 09:59 AM	#3
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	the 010 is a 350 casting number __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)

05-31-2004, 10:09 AM	#5
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	yep, looks to be a 350 with a 2 barrel carb on it __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

05-31-2004, 12:24 PM	#9
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	Here are some pictures. Am I suppose to see the number around these areas? Your help is greatly appreciated. Thanks. Attached Images

05-31-2004, 10:06 AM	#4
jef5150 Inline 69 Join Date: Apr 2003 Location: valleysprings,california Posts: 1,018	heres a link for casting #s http://www.mortec.com/castnum.htm 3970010....302.....69....4...Z-28 Camaro 3970010....327.....69....2...Trucks and industrial 3970010....350...69-80...2 or 4 can you get the head casting #s? jeff

05-31-2004, 11:27 AM	#7
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,483	Judging by the valve covers, the 350 appears to be from the late 70s or early 80s with the 327 intake manifold. There is a stamped code on the front of the block right in front of the right hand cyl head. These are the #s or letters that will tell you what it came out of.

05-31-2004, 12:18 PM	#8
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	Well, I usually don't act this dum! but the truth is I can not find this number infront of the engine!. I am gona post some picture of the area that I am looking at at in few minutes. Thanks though.

05-31-2004, 12:28 PM	#10
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	chevy didn't make blue engines till the late 70's 77 ithink was the first year __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

05-31-2004, 05:32 PM	#11
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	Nima There are usually two sets of numbers on this pad in front of the passenger side head. One set will tell you what type of vehicle the motor originally was in. If it starts with a T then it is a truck motor, if it starts with a C then a car motor. The second set will contain a partial VIN to tie it to a specific vehicle. In a lot of cases these numbers are gone due to the fact that the block has been machined or shaved at some point in its life. These are good blocks some are 2 bolt mains and other are 4 bolt mains. You will have to drop the pan to figure this out. Attached Images __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

05-31-2004, 06:09 PM	#12
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	Thanks hutch. I guess my engine stays a mystery for now. At least I am happy that I am not blind! since I didn't see any number. By the way, what did you mean by dropping the pan? Do you mean oil pan? Thanks again.

05-31-2004, 06:12 PM	#13
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	underneath that blue paint there should be number .... thats how i found out my 350 was original with 244k miles __________________ 71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee.

05-31-2004, 06:22 PM	#15
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,178	I scraped the paint. There was nothing there. Actually there was some evidence of sanding or brushing on it. Now the question is: I can not do anything to do to this engine until I find out what it is exactly. I have carburator problem which I wanted to take care of it by replacing the carb to 4 bbl. Also I was about to chage the intake too. This sucks!. Thanks guys.

05-31-2004, 06:33 PM	#16
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	Stick a 4 barrel on it! Doesn't matter what it is. Put a 600 cfm carb on it, great all-around carb for any small block. The intake manifolds are interchangeable so you won't have any problems. You might have to change your alternator bracket though.

05-31-2004, 06:48 PM	#17
72C203503ONTHETREE Registered User Join Date: Apr 2004 Location: Grant, Alabama Posts: 504	Actually, that blue is not the original color blue Chevy used. I had a 81 Z28 and it had the blue engine(stock) but was a lighter blue. Also, the heads after 77 were the lightwieght heads are not good for rebuilds. The oil dipstick is also on the wrong side for a pre 78 engine. Thats probably a 350 out of a caprice or Camaro. __________________ 72 Chevy C20, SOLD (Dang it.) 09 Challanger RT six speed in all black. 74 Datsun 710 wagon, all 1.8 liters of screaming Datsun power. 73 C10 long bed, 350/350 combo, nice shape.



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06-01-2004, 12:49 PM	#18
Cethern What was I thinking?? Join Date: Dec 2003 Location: Commerce City Co Posts: 637	I'm not near my 72 to go and look at my heads. But when I look at his heads I do not see any assy. Holes for stuff like the alt. would that mean the heads he has on the motor are old style? The intake is old style. My guess is someone pulled the motor and and put what ever they had laying around to make it run then used a can of ford blue to top it off. But thats just a guess. Cethern __________________ 72 K5 that needs lots of parts.. 71 GMC 3/4 4x4 That doesn't need much which is a good thing I don't think I could aford another money pit...

06-01-2004, 01:54 PM	#19
70ChevyLongbed Howzit?!? Join Date: Jan 2003 Location: Maryville, TN Posts: 1,266	Randy's right... you can change the carb and intake regardless of which small block it is... just go easy with what you choose. My 500cfm is a great little carb too __________________ Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold

06-01-2004, 09:33 PM	#20
72C203503ONTHETREE Registered User Join Date: Apr 2004 Location: Grant, Alabama Posts: 504	Man, Im blind, yes there are no bolt holes in the heads so they are the good ones, at least rebuildable. They are pre 69 heads at least, probably the original 327 heads. If theres no numbers on the pad in front of the right head that means the block has been decked and most likely the shortblock was at least rebuilt. __________________ 72 Chevy C20, SOLD (Dang it.) 09 Challanger RT six speed in all black. 74 Datsun 710 wagon, all 1.8 liters of screaming Datsun power. 73 C10 long bed, 350/350 combo, nice shape.

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