Please help decode my motor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MorePower · 12-03-2005, 03:11 PM

Ok, here is what i could barely read
VC417FLF
underneath, and thi sis barely readable and I even sanded it
IEJ52151A
I was told it was a 350, ok if so, what year, etc etc
thanks sooooooooooo much

dons454s · 12-04-2005, 03:50 AM

Quote:

Originally Posted by MorePower

Ok, here is what i could barely read
VC417FLF
underneath, and thi sis barely readable and I even sanded it
IEJ52151A
I was told it was a 350, ok if so, what year, etc etc
thanks sooooooooooo much

Check out the flf part real good because I dont have anything like that. I have a ton that are one letter off of it in many combinations. What year do you think it might be?
Don

MorePower · 12-04-2005, 09:04 AM

the FLF part is correct. Just the numbers and letters below I can barely read. No idea what year it is,thanks for the help

RSTYCVY · 12-05-2005, 07:07 PM

V=Flint Engine Plant
04= April
17=17th

As far as the FLF goes there is no such code .
It may be a TLF or a BLF
TLF= 1978 400c.i.
BLF= 1990 305c.i.
Oter possibilities are:
FLH
FLJ
FLK
FLL
FLK
FLM
FLR
FLS
FLW
These are all 85' 350 codes

You might want to go by the casting number on the rear of the block.

MorePower · 12-05-2005, 09:32 PM

which side on the block,pass or dr side,near bellhousing??? I will get it,is it hard to read or get at???

RSTYCVY · 12-05-2005, 09:52 PM

I would check the driverside first then the passengerside. It is difficult to access. A mirror helps. If you can clean the area off, a piece of clay to make an impressoin helps too.

MorePower · 12-05-2005, 09:58 PM

ok I will check, let u know tonight what and if i find anything, thanks...i am

and

SSC's76 · 12-05-2005, 10:54 PM

Dont get your hopes up. It's not a 400 most likely not a 350 either, it's a moslt likely a BLF 305. is your harmonic damper (ballancer) 8in or 6in?

MorePower · 12-05-2005, 11:10 PM

ok this is what I got from the drivers rear. "4010207"
The only nuber that is questionable is 401?207, maybe an 8,2< Not sure,best guess was a 0. Very hard to see back there............Maybe I was misled when I bought this truck. Was told it was a 350

Slonaker · 12-05-2005, 11:20 PM

My '86 305 actually has a big "305" cast into the block near the front in numbers about 3/4 in tall. You can see it from underneath, I think on the driver's side. You might see if yours has that.

Slonaker

MorePower · 12-05-2005, 11:20 PM

just checked on another site.
1980-85 year 14010207 block number 350 cu - - 4 bolt main truck
thanks for the help

MorePower · 12-05-2005, 11:38 PM

weird thing is....dipstick on pass side, and I double checld the numbers 3 times, its a 350, 4 bolt main. truck motor, it may actually be the orig motor. I was told its 60 over,roller rockers,400hp. I believe it cause this truck is fast.

SSC's76 · 12-06-2005, 12:34 PM

Quote:

Originally Posted by MorePower

weird thing is....dipstick on pass side, and I double checld the numbers 3 times, its a 350, 4 bolt main. truck motor, it may actually be the orig motor. I was told its 60 over,roller rockers,400hp. I believe it cause this truck is fast.

Yea, but Ive had 305's that were vituraly stock that people would crap thier pants driving.

Which site did you get the casting numbers from, www.mortec.com/ ? 1401207's can come in either 2 or 4 bolt flavors.

**Captkaos** · 12-06-2005, 12:40 PM

Quote:

Originally Posted by MorePower

....it may actually be the orig motor.

What is the VIN numbers 8th digit? I am betting it is either a G or H. C10's from 1981 - 1986 didn't have the 350 as an option in the US.

SSC's76 · 12-06-2005, 03:53 PM

Quote:

Originally Posted by Captkaos

What is the VIN numbers 5th digit? I am betting it is either a G or H. C10's from 1981 - 1986 didn't have the 350 as an option in the US.

True. My 86 came with a 4.3L from the factory.

MorePower · 12-06-2005, 08:00 PM

Here is my VIN, decode away!!!!

2GTCC14D3B1544071

86 GMG · 12-06-2005, 12:01 PM

my motor has a 5.7 raised numbers on the passenger side behind the head facing up just before the tranny and block join together maybe that will help also b/c you still sound doughtfull sp?

**Captkaos** · 12-06-2005, 09:08 PM

Here ya go... (typo'd on the above, should have said 8th not 5th, I corrected it)

2 - Canada
GT - GMC
C - 4001-5000 Hydraulic
C - 2 Wheel Drive 1981-1986
1 - 1/2 Ton
4 - two door cab
D - 250 Inline 6 cyl
3 - Check digit
B - 1981
xxxxxxx - production number

MorePower · 12-06-2005, 09:56 PM

what does check digit mean??? Was it an automatic or stick?

**Captkaos** · 12-07-2005, 11:46 AM

Quote:

Originally Posted by MorePower

what does check digit mean??? Was it an automatic or stick?

It doesn't mean anything, it is a digit included for a check, hence check digit.

No idea on the trans. That would be listed in the Options sheet in the glovebox.

12-03-2005, 03:11 PM	#1
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Please help decode my motor Ok, here is what i could barely read VC417FLF underneath, and thi sis barely readable and I even sanded it IEJ52151A I was told it was a 350, ok if so, what year, etc etc thanks sooooooooooo much __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-04-2005, 09:04 AM	#3
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor the FLF part is correct. Just the numbers and letters below I can barely read. No idea what year it is,thanks for the help __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-05-2005, 07:07 PM	#4
RSTYCVY SurlySpeedDemon Join Date: Feb 2005 Location: New Hampshire Posts: 60	Re: Please help decode my motor V=Flint Engine Plant 04= April 17=17th As far as the FLF goes there is no such code . It may be a TLF or a BLF TLF= 1978 400c.i. BLF= 1990 305c.i. Oter possibilities are: FLH FLJ FLK FLL FLK FLM FLR FLS FLW These are all 85' 350 codes You might want to go by the casting number on the rear of the block. Last edited by RSTYCVY; 12-05-2005 at 07:17 PM.

12-05-2005, 09:32 PM	#5
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor which side on the block,pass or dr side,near bellhousing??? I will get it,is it hard to read or get at??? __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-05-2005, 09:52 PM	#6
RSTYCVY SurlySpeedDemon Join Date: Feb 2005 Location: New Hampshire Posts: 60	Re: Please help decode my motor I would check the driverside first then the passengerside. It is difficult to access. A mirror helps. If you can clean the area off, a piece of clay to make an impressoin helps too.

12-05-2005, 09:58 PM	#7
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor ok I will check, let u know tonight what and if i find anything, thanks...i am and __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-05-2005, 10:54 PM	#8
SSC's76 No No Join Date: Jun 2005 Location: Pueblo Colorado Posts: 1,781	Re: Please help decode my motor Dont get your hopes up. It's not a 400 most likely not a 350 either, it's a moslt likely a BLF 305. is your harmonic damper (ballancer) 8in or 6in? __________________ 1976 Custom Deluxe SWB Med FMB.3/4 Drop. Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out. 1997 K1500 ext cab 5.7 stock except muffler

12-05-2005, 11:10 PM	#9
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor ok this is what I got from the drivers rear. "4010207" The only nuber that is questionable is 401?207, maybe an 8,2< Not sure,best guess was a 0. Very hard to see back there............Maybe I was misled when I bought this truck. Was told it was a 350 __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-05-2005, 11:20 PM	#10
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	Re: Please help decode my motor My '86 305 actually has a big "305" cast into the block near the front in numbers about 3/4 in tall. You can see it from underneath, I think on the driver's side. You might see if yours has that. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

12-05-2005, 11:20 PM	#11
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor just checked on another site. 1980-85 year 14010207 block number 350 cu - - 4 bolt main truck thanks for the help __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-05-2005, 11:38 PM	#12
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor weird thing is....dipstick on pass side, and I double checld the numbers 3 times, its a 350, 4 bolt main. truck motor, it may actually be the orig motor. I was told its 60 over,roller rockers,400hp. I believe it cause this truck is fast. __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-06-2005, 08:00 PM	#16
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor Here is my VIN, decode away!!!! 2GTCC14D3B1544071 __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg

12-06-2005, 12:01 PM	#17
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	Re: Please help decode my motor my motor has a 5.7 raised numbers on the passenger side behind the head facing up just before the tranny and block join together maybe that will help also b/c you still sound doughtfull sp? __________________ square body trucks an addiction or an investment either way they consume all my extra time and money

12-06-2005, 09:08 PM	#18
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: Please help decode my motor Here ya go... (typo'd on the above, should have said 8th not 5th, I corrected it) 2 - Canada GT - GMC C - 4001-5000 Hydraulic C - 2 Wheel Drive 1981-1986 1 - 1/2 Ton 4 - two door cab D - 250 Inline 6 cyl 3 - Check digit B - 1981 xxxxxxx - production number __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

12-06-2005, 09:56 PM	#19
MorePower Registered User Join Date: Jul 2005 Location: Cold Canada Posts: 162	Re: Please help decode my motor what does check digit mean??? Was it an automatic or stick? __________________ http://i30.photobucket.com/albums/c3...c/IM001769.jpg



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.