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#1 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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How do I Identify my vortec?
This is my first time dealing with a newer engine like this. I just picked up an '86 3/4 ton K5 blazer and it came with what the guy said was a "newer vortec motor with 30,000 miles" he said he got it from a salvage yard. Well now he wont call or email me back so im trying to figure this out on my own. Casting number as far as I can tell is 10243880. I got this number off the back passenger side of the motor.
Things Id like to know: Year Displacement What it was used in Any other nifty tid bits? What I do know: the heads have saw tooth markings the intake has 4 bolts on each side. driving 300 miles with it sitting on a tire in the back of lifted K5 blazer tied down with only bailing wire to the spare tire rack isnt a good Idea... but it gets the job done. ![]() As always thanks in advance everyone. |
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#2 |
Registered User
![]() Join Date: Jul 2010
Location: memphis
Posts: 2,537
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Re: How do I Identify my vortec?
Are tha intake bolks angled & straight down..if they straight down..you have a vortec..
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1981 C-10 (Pop's) 1978 Camaro 2006 Lacrosse |
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#3 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
Straight down. Im pretty sure I have a vortec I just want to figure out what year it is and what it might have come out of. the biggest reason is I have a guy who might want to trade for an 8.1 vortec but he needs to know what year.
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#4 |
Registered User
Join Date: Feb 2009
Location: slurrey, bc.
Posts: 1,134
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Re: How do I Identify my vortec?
its a 350..
pull the pan and check the mains/rods.
__________________
-'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler. |
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#5 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
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#6 |
Registered User
Join Date: Jan 2006
Location: Cherry Valley,Ca
Posts: 468
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Re: How do I Identify my vortec?
Is there a intake manifold on it?
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#7 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
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#8 |
is a fungineer
![]() Join Date: Jan 2009
Location: Bakersfield, CA
Posts: 795
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Re: How do I Identify my vortec?
10243880 comes back to 96+ roller cam 350.
Sawtooth casting marks and 8 intake bolts sounds like Vortec heads. Does the block have a casting date on it? Posted via Mobile Device
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2003 S10, 2.2 auto- the daily driver, currently with a 2"/2" drop and some minor engine bolt-ons 1978 Impala 2-door, race 350/T350 - the new race car, in progress 1968 Chevy C10 longbed- 3/5 drop, currently undergoing a heart transplant |
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#9 |
Registered User
Join Date: Apr 2011
Location: Carson City Nevada
Posts: 68
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Re: How do I Identify my vortec?
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#10 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
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#11 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
these are all of the identifying marks I know about. Is that the date stamp?
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#12 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: How do I Identify my vortec?
Both the block and heads will have the casting date on them
As far as I know all L31 Vortec long blocks are the same, aside from the 2 bolt/4bolt mains. The only differences I am aware of are with the PCM and the wiring.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#13 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,248
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Re: How do I Identify my vortec?
Yes the 2nd pic is the date code. It's hard to see in the pic, but it looks like it starts with a K which is the 11th month which is of course November. The next pair if numbers is the day of the month, and the last number is the year.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#14 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
it looks to me like k.03.03 which would be November 3 2003 right?
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#15 |
Registered User
Join Date: Feb 2009
Location: slurrey, bc.
Posts: 1,134
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Re: How do I Identify my vortec?
96-2000
__________________
-'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler. |
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#16 |
is a fungineer
![]() Join Date: Jan 2009
Location: Bakersfield, CA
Posts: 795
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Re: How do I Identify my vortec?
I think your last digit is an 8. See how the 3 next to it has a flat top?
__________________
2003 S10, 2.2 auto- the daily driver, currently with a 2"/2" drop and some minor engine bolt-ons 1978 Impala 2-door, race 350/T350 - the new race car, in progress 1968 Chevy C10 longbed- 3/5 drop, currently undergoing a heart transplant |
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#17 |
70Custom10
Join Date: Jan 2010
Location: Rapid City, SD
Posts: 322
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Re: How do I Identify my vortec?
Its very hard to tell. The pictures really do look as good as it does in real life. 8 makes more sense. Mileage doesn't really make much sense though. he said it was 30,000. Anyway thanks for the help narrowing this down everyone!
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identification, vortec |
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