305 engine suffix code - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*mjgord51* · 08-09-2015, 05:18 PM

I have this eng. 5.0L already in truck and its a little hard to get the Casting #'s but here's what I could get from area of casting #'s. Also I cant find what the suffix code is other then the letters coming up as a Big Block, Its a small block & not a big block. With out the Casting #'s I am not for sure if it is some kind of a special engine or something like that, Here's some pic's to look at guys. Oh I'm sorry my Male Chauvinist side is showing through, AND "Gals" if applicable. I would like to know more then I know so far about it, Any help would be great, Thanks, mjgord51

geezer#99 · 08-09-2015, 06:15 PM

Looks like a hecho in mexico 305!
What's the casting number and the build date?

*mjgord51* · 08-09-2015, 10:26 PM

Quote:

Originally Posted by geezer#99

Looks like a hecho in mexico 305!
What's the casting number and the build date?

I was hopping this wouldn't go "South", a little hard for me to get more info on the engine right now due too health complications will need to get back to you on that at a later date, mjgord51

Any body else too ring in on this

geezer#99 · 08-09-2015, 10:41 PM

Then let's go north a bit!! So to speak!! LOL!!
Is there any other numbers below the ones on the pad?
Some blocks like crate engines and the old factory target master motors had an identifying number on the pad too. Usually started with a one.

hamjet · 08-10-2015, 07:26 AM

On the rear pass side of the block there will be a casting number, mine is 14088551 which is a 86-92 305...http://www.nastyz28.com/sbchevy/sblock.html#casting... hope this helps....

*mjgord51* · 08-12-2015, 12:37 PM

Quote:

Originally Posted by hamjet

On the rear pass side of the block there will be a casting number, mine is 14088551 which is a 86-92 305...http://www.nastyz28.com/sbchevy/sblock.html#casting... hope this helps....

Might the #'s be on the opposite side (pass) behind head. I know other blocks ( 283,302,327,350) all have casting #'s on left side. might be the 305's arnt normal? LOL LOL you think!

hamjet · 08-12-2015, 12:43 PM

Quote:

Originally Posted by mjgord51

Might the #'s be on the opposite side (pass) behind head. I know other blocks ( 283,302,327,350) all have casting #'s on left side. might be the 305's arnt normal? LOL LOL you think!

YES, its one the pass side behind the head....

geezer#99 · 08-12-2015, 12:45 PM

Quote:

Originally Posted by mjgord51

Might the #'s be on the opposite side (pass) behind head. I know other blocks ( 283,302,327,350) all have casting #'s on left side. might be the 305's arnt normal? LOL LOL you think!

Some blocks had the number on the passenger side.
IIRC the ones cast in mexico were.

*mjgord51* · 08-12-2015, 02:31 PM

Quote:

Originally Posted by geezer#99

Some blocks had the number on the passenger side.
IIRC the ones cast in mexico were.

? on what does IIRC stand for

geezer#99 · 08-12-2015, 02:41 PM

Quote:

Originally Posted by mjgord51

? on what does IIRC stand for

If I Recall Correctly

*mjgord51* · 08-20-2015, 12:31 PM

Quote:

Originally Posted by geezer#99

Some blocks had the number on the passenger side.
IIRC the ones cast in mexico were.

Still a mystery no #'s on right side behind head

albar · 01-06-2024, 02:49 AM

Quote:

Originally Posted by hamjet

On the rear pass side of the block there will be a casting number, mine is 14088551 which is a 86-92 305...http://www.nastyz28.com/sbchevy/sblock.html#casting... hope this helps....

can the14088551 be used in 85 c10?
Im new to this but my 305 in my truck gave up and i have another 305 with that same code.
wondering if I can just swap it out?

dmack91 · 01-09-2024, 12:22 AM

Should be able to just swap one for the other. Pretty much any small block will swap in with minimal concerns/issues.

geezer#99 · 08-11-2015, 08:22 AM

The suspence is killing me, Dude!!
Did you find any numbers?

MARKDTN · 08-11-2015, 10:44 AM

On the Nasty Z28 site, looks like the AK* engines are 1989 305 MonteCarlo or Firebird. That kinds fits with what it look like. Maybe meant to be AKH but they got lazy? Appears to have orange heads so maybe off an original 307? Lots of conjecture.

*mjgord51* · 08-20-2015, 12:27 PM

Quote:

Originally Posted by MARKDTN

On the Nasty Z28 site, looks like the AK* engines are 1989 305 MonteCarlo or Firebird. That kinds fits with what it look like. Maybe meant to be AKH but they got lazy? Appears to have orange heads so maybe off an original 307? Lots of conjecture.

The hole motor is Orange, intake is Alum. Where does the 307 come in here, just because its heads are orange most SBC eng. I have seen are Orange some being Black.

bruceman1968 · 08-11-2015, 11:30 AM

Mjgord51, I can't find a decode for application code AKA (small block) either.
The plant code V means the engine was built in Flint MI.
07 is July
21 is the 21st day of July
The 5.0LG is for 5 Liters Gross or a 305cid.
SGI is Spheroidal Graphite Iron which is the type of iron used for the block.
Not much help, Sorry.
AKC, AKF, AKH, AKJ, AKM, AKN, AKP, AKS, AKU are all 1989, 305 codes.
ATA is also a 1989 305, Maybe a miss stamp is possible??
Your casting number will give you a year range and the date code will narrow it down to the exact year. It's definitely a 305 block.
Hope your health issues improve. I know how troubling that can be.
I'll keep looking for the AKA code.

*mjgord51* · 08-12-2015, 01:03 AM

Quote:

Originally Posted by bruceman1968

Mjgord51, I can't find a decode for application code AKA (small block) either.
The plant code V means the engine was built in Flint MI.
07 is July
21 is the 21st day of July
The 5.0LG is for 5 Liters Gross or a 305cid.
SGI is Spheroidal Graphite Iron which is the type of iron used for the block.
Not much help, Sorry.
AKC, AKF, AKH, AKJ, AKM, AKN, AKP, AKS, AKU are all 1989, 305 codes.
ATA is also a 1989 305, Maybe a miss stamp is possible??
Your casting number will give you a year range and the date code will narrow it down to the exact year. It's definitely a 305 block.
Hope your health issues improve. I know how troubling that can be.
I'll keep looking for the AKA code.

I will try and pull the starter to find more #'s but for now another problem just popped up. My Emg. flashers stopped flashing but when I set them and push on brake peddle they stay on, take foot off brake and they go out, I have enough Gray hairs but it looks like I'll have some more shortly LOL LOL, Thanks, mjgord51

geezer#99 · 08-12-2015, 07:57 AM

Why would you need to pull the starter?
Any casting codes or build dates are on the bellhousing flange behind the heads.

Have you replaced your flasher on the fuse box to see if thats what's causing your flasher problem. Stuff doesn't last forever, especially electrical stuff.

*mjgord51* · 08-12-2015, 12:22 PM

Quote:

Originally Posted by geezer#99

Why would you need to pull the starter?
Any casting codes or build dates are on the bellhousing flange behind the heads.

Have you replaced your flasher on the fuse box to see if thats what's causing your flasher problem. Stuff doesn't last forever, especially electrical stuff.

That was the first thing checked (replaced new), 2nd was turning on all turn signals & each works OK, might need a new turn signal sw. saw some where Orignal has RED hazard knob my sw. might have been replaced at one time, also might need to look at a wiring diagram (for color wire) to check for power coming out of sw./wire harness when in gauged , this might be a good start for me?

geezer#99 · 08-12-2015, 12:46 PM

Quote:

Originally Posted by mjgord51

That was the first thing checked (replaced new), 2nd was turning on all turn signals & each works OK, might need a new turn signal sw. saw some where Orignal has RED hazard knob my sw. might have been replaced at one time, also might need to look at a wiring diagram (for color wire) to check for power coming out of sw./wire harness when in gauged , this might be a good start for me?

Best place to start is....
Check your grounds!!

*mjgord51* · 08-19-2015, 01:06 AM

Quote:

Originally Posted by geezer#99

Best place to start is....
Check your grounds!!

I think it was a good place to start with, It had some straps (3) already but they looked like they were from 1968, I knew at some point they needed to be replaced but when I started checking some of the lites & wiring thats when all hel* started, FIXED NOW. Thanks

*mjgord51* · 08-12-2015, 12:31 PM

Quote:

Originally Posted by geezer#99

Why would you need to pull the starter?
Any casting codes or build dates are on the bellhousing flange behind the heads.

Have you replaced your flasher on the fuse box to see if thats what's causing your flasher problem. Stuff doesn't last forever, especially electrical stuff.

Some where was told the #'s on Pass side of block, only thing I could think of to take starter out cause I can't see any thing with it in

hamjet · 08-12-2015, 03:49 PM

IIRC, it stands for If I Recall Correctly

*mjgord51* · 08-19-2015, 12:57 AM

Wiring problems salved, I just installed a shi* load of ground straps (5) all over and also some larger gauge ground wire from Eng to frame then frame to radiator support and a new ground from battery to frame. I also took the fuss block/panel off and cleaned all rust from the fuss holder clips. I now have all lites in working order, I guess the old saying is true about being " An old Rust bucket" LOL

08-09-2015, 05:18 PM	#1
mjgord51 Account Suspended Join Date: Feb 2015 Location: So.Ca. Posts: 264	305 engine suffix code I have this eng. 5.0L already in truck and its a little hard to get the Casting #'s but here's what I could get from area of casting #'s. Also I cant find what the suffix code is other then the letters coming up as a Big Block, Its a small block & not a big block. With out the Casting #'s I am not for sure if it is some kind of a special engine or something like that, Here's some pic's to look at guys. Oh I'm sorry my Male Chauvinist side is showing through, AND "Gals" if applicable. I would like to know more then I know so far about it, Any help would be great, Thanks, mjgord51 Attached Images

08-09-2015, 06:15 PM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,749	Re: 305 engine suffix code Looks like a hecho in mexico 305! What's the casting number and the build date?

08-09-2015, 10:41 PM	#4
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,749	Re: 305 engine suffix code Then let's go north a bit!! So to speak!! LOL!! Is there any other numbers below the ones on the pad? Some blocks like crate engines and the old factory target master motors had an identifying number on the pad too. Usually started with a one.

08-10-2015, 07:26 AM	#5
hamjet Registered User Join Date: Apr 2013 Location: South Westerlo, New York Posts: 1,325	Re: 305 engine suffix code On the rear pass side of the block there will be a casting number, mine is 14088551 which is a 86-92 305...http://www.nastyz28.com/sbchevy/sblock.html#casting... hope this helps.... __________________ Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.

01-09-2024, 12:22 AM	#13
dmack91 Registered User Join Date: Jan 2011 Location: Redmond, OR Posts: 763	Re: 305 engine suffix code Should be able to just swap one for the other. Pretty much any small block will swap in with minimal concerns/issues. __________________ 68 Chev C20- son has it now 83 K20 - bought from son 70 C20 - in progress

08-11-2015, 08:22 AM	#14
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,749	Re: 305 engine suffix code The suspence is killing me, Dude!! Did you find any numbers?

08-11-2015, 10:44 AM	#15
MARKDTN Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 2,171	Re: 305 engine suffix code On the Nasty Z28 site, looks like the AK* engines are 1989 305 MonteCarlo or Firebird. That kinds fits with what it look like. Maybe meant to be AKH but they got lazy? Appears to have orange heads so maybe off an original 307? Lots of conjecture. __________________ '83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project

08-11-2015, 11:30 AM	#17
bruceman1968 Registered User Join Date: Oct 2009 Location: Tampa Bay Posts: 1,549	Re: 305 engine suffix code Mjgord51, I can't find a decode for application code AKA (small block) either. The plant code V means the engine was built in Flint MI. 07 is July 21 is the 21st day of July The 5.0LG is for 5 Liters Gross or a 305cid. SGI is Spheroidal Graphite Iron which is the type of iron used for the block. Not much help, Sorry. AKC, AKF, AKH, AKJ, AKM, AKN, AKP, AKS, AKU are all 1989, 305 codes. ATA is also a 1989 305, Maybe a miss stamp is possible?? Your casting number will give you a year range and the date code will narrow it down to the exact year. It's definitely a 305 block. Hope your health issues improve. I know how troubling that can be. I'll keep looking for the AKA code. __________________ CHEVY/GMC VIN DECODERS

08-12-2015, 07:57 AM	#19
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,749	Re: 305 engine suffix code Why would you need to pull the starter? Any casting codes or build dates are on the bellhousing flange behind the heads. Have you replaced your flasher on the fuse box to see if thats what's causing your flasher problem. Stuff doesn't last forever, especially electrical stuff.

08-12-2015, 03:49 PM	#24
hamjet Registered User Join Date: Apr 2013 Location: South Westerlo, New York Posts: 1,325	Re: 305 engine suffix code IIRC, it stands for If I Recall Correctly __________________ Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.

08-19-2015, 12:57 AM	#25
mjgord51 Account Suspended Join Date: Feb 2015 Location: So.Ca. Posts: 264	Re: 305 engine suffix code Wiring problems salved, I just installed a shi* load of ground straps (5) all over and also some larger gauge ground wire from Eng to frame then frame to radiator support and a new ground from battery to frame. I also took the fuss block/panel off and cleaned all rust from the fuss holder clips. I now have all lites in working order, I guess the old saying is true about being " An old Rust bucket" LOL



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