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Old 05-29-2016, 07:55 PM   #1
saxart
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Help me i.d. this engine

I'm hoping someone here can help me I.D. this engine. Bought this truck three weeks ago and the previous owner said the engine was replaced with one out of a 1974 GM vehicle. (He can't remember) I've tried to look it up on the interweb, but keep getting conflicting information.

Is the engine a 350, or some other size?

(Thanks in advance!)



"TO416CMA"



"14L196828"



Here is the carb numbers if they help with ID also...

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Old 05-29-2016, 08:08 PM   #2
dennislbrooks
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Re: Help me i.d. this engine

You've probably been here -- the A in CMA does not match but the L in the eng vin looks like a 350.

http://www.nastyz28.com/gm-chevy-cod...s-suffix-3.php
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Old 05-29-2016, 08:12 PM   #3
CarterD2015
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Re: Help me i.d. this engine

Can you get a couple of good pics of the harmonic balancer? That might help with identification. I can tell the 350 and 305 apart using the harmonic balancer but I'm not that familiar with the 283 or 400.
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Old 05-29-2016, 08:16 PM   #4
bruceman1968
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Re: Help me i.d. this engine

T0416CMA
T=Tonawanda Engine assembly plant
04=April
16=16th of April
CMA=350ci, 145hp, th350 trans, 2bbl.

14L196848
1=Chevrolet
4=1974
L=Van Nuys Assembly plant
196848=unique serial number(vin)
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Old 05-29-2016, 08:58 PM   #5
saxart
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Re: Help me i.d. this engine

Thanks a lot Bruceman, that's exactly the info I was looking for..

The main reason is that I'm in need of a new set of headers, and full exhaust

This is a budget build, so if anybody has recommendations for either headers or exhaust that won't break the bank, please post!
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Old 05-30-2016, 09:38 AM   #6
RustyBucket
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Re: Help me i.d. this engine

If your cast iron exhaust manifolds are intact I'd surely use them.
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Old 05-30-2016, 06:28 PM   #7
jerry moss
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Re: Help me i.d. this engine

Quote:
Originally Posted by RustyBucket View Post
If your cast iron exhaust manifolds are intact I'd surely use them.
X2
unless you are going to fork out big bucks scrap the header idea. inexpensive headers are a source for leaks and unless you have the "motor" that needs them they are a waste of money. if your manifolds are not cracked just resurface them and bolt them back on-WITHOUT gaskets. as long as the head surface is clean and straight you won't have any leaks. before i get trashed for my comment-i work in a muffler shop (31+ years) and thats how we have always done them.
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69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
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Old 05-30-2016, 06:38 PM   #8
TeamEstep
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Re: Help me i.d. this engine

Sounds like you got it figured out.
For everyone's future reference, I found this link to be helpful for figuring out all kinds of Chevy casting numbers. Cranks, heads, blocks, intake and exhaust manifolds, etc.
http://outintheshop.com/faq/casting/castings2.html
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Old 05-30-2016, 11:16 PM   #9
saxart
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Re: Help me i.d. this engine

Quote:
Originally Posted by RustyBucket View Post
If your cast iron exhaust manifolds are intact I'd surely use them.
Quote:
Originally Posted by jerry moss View Post
X2
unless you are going to fork out big bucks scrap the header idea. inexpensive headers are a source for leaks and unless you have the "motor" that needs them they are a waste of money. if your manifolds are not cracked just resurface them and bolt them back on-WITHOUT gaskets. as long as the head surface is clean and straight you won't have any leaks. before i get trashed for my comment-i work in a muffler shop (31+ years) and thats how we have always done them.
Thanks for this thought. Yes, after doing some research here on the site, it sounds like I'll be staying with the original ram-horn cast manifolds.

This brings up another question... The outlet on these manifolds point straight down (as opposed to curving toward the back) Are those the correct manifolds for a 2WD truck? I may be getting the LMC exhaust and want to make sure we don't have to send it back.

Thanks again for the help.

TeamEstep-
That site it great!
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Old 05-30-2016, 11:55 PM   #10
jerry moss
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Smile Re: Help me i.d. this engine

Quote:
Originally Posted by saxart View Post
Thanks for this thought. Yes, after doing some research here on the site, it sounds like I'll be staying with the original ram-horn cast manifolds.

This brings up another question... The outlet on these manifolds point straight down (as opposed to curving toward the back) Are those the correct manifolds for a 2WD truck? I may be getting the LMC exhaust and want to make sure we don't have to send it back.

Thanks again for the help.

TeamEstep-
That site it great!
on a 2wd they should both curve back. if your truck has the engine in the stock location for a 2wd V-8 you need to find the correct manifolds otherwise the LMC kit won't fit. i've done duals on 2wd trucks with the straight dump manifolds and it is a pain in the a$$ - tight bends and difficult (damn near impossible) to tighten the nuts onto the studs. just post a "want to buy" thread on the parts board and someone here will help you out with the correct manifolds.
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72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD
69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW
BRENTWOOD,CALIFORNIA
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