It's a riddle

sarge · 05-03-2007, 11:08 PM

Mike , I will start listing the parts that I sold him with the rig :

I got the intake and TBI off of a suburban with a 350 in it , it had a Holley TBI unit on it ( I guess Jacob found it was bad ) . I can't remember the year , but I would say it was early 90's .

Jacob ,
just to make sure , get the numbers off of the block , I never second guessed the guy I bought the K-5 off of as to it truely being a 350 , it may be a 305 and this would cause problems .......

Mike F · 05-04-2007, 04:43 PM

sarge, Did you pull the entire TBI system off the suburban?

I have the casting numbers for chevy V8s up to 86. At some point after that GM started to cast the displacement litre size (like 5.7) into the same spot as the casting numbers on the rear top of the block in front of the trans.

Hybrid, We also need to ID the replacement TBI you picked up to replace the bad holley TBI.

I can trace some of the numbers for some of the original GM parts. I can only read the info off the chip for the 7747 ecm to see what it is but it realy doesn't matter for that one because I can change it if need be.

sarge · 05-04-2007, 10:04 PM

the intake and TBI were already off the burb sitting inthe rear seat , I pulled the ECM out from under the dash and I can't remember is I found the dist. or not . The guy I got the K-5 from worked at GM and told me that he blew the 305 and put a crate 350 in it a few months before I got it . It looked like the standard Mexican 350 with the perimeter bolt valve covers that you can get for like $1400.00 .

The burb ( if I remember correctly ) was not the old square style ( 80's ) but more like a 90's . I have a 90 and it was still the square style so I don't know when they changed. I think the ecm is the 7747 , I think I checked when I was going to order a harness.

Hybrid · 05-06-2007, 01:40 PM

The number on the ECM is 1228747. Where on the block is the number for the motor? That motor might very well be a 305, b/c i bought a new 350 harmonic balancer for it and I can not get it to TDC for the life of me. The coil i replaced in the distributor was a little plastic thing with copper wire coiled around it. It sat underneath the rotor button and it was connected to the sensor in the distributor.

Mike F · 05-06-2007, 10:20 PM

I do not have any info on the 1228747 ecm but do for a 1228746, if it is a 8747 I can not hook into it and the only option would be to convert to a 7747 ecm if I was to mess with it.

The block numbers should be on the top rear edge of the motor.

That coil was probably the pickup and the sensor is the ignition module.

sarge · 05-06-2007, 11:35 PM

Jacob , don't freak if it is a 305 , I have all the 305 stuff off my Camaro.

Hybrid · 05-07-2007, 01:19 PM

The number on the block is 14010207

05-04-2007, 04:43 PM	#2
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	sarge, Did you pull the entire TBI system off the suburban? I have the casting numbers for chevy V8s up to 86. At some point after that GM started to cast the displacement litre size (like 5.7) into the same spot as the casting numbers on the rear top of the block in front of the trans. Hybrid, We also need to ID the replacement TBI you picked up to replace the bad holley TBI. I can trace some of the numbers for some of the original GM parts. I can only read the info off the chip for the 7747 ecm to see what it is but it realy doesn't matter for that one because I can change it if need be. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.

05-06-2007, 10:20 PM	#5
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	I do not have any info on the 1228747 ecm but do for a 1228746, if it is a 8747 I can not hook into it and the only option would be to convert to a 7747 ecm if I was to mess with it. The block numbers should be on the top rear edge of the motor. That coil was probably the pickup and the sensor is the ignition module. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.

05-03-2007, 11:08 PM	#1
sarge Pure Bacon Join Date: Jan 2007 Location: Trenton, Oh Posts: 1,098	Mike , I will start listing the parts that I sold him with the rig : I got the intake and TBI off of a suburban with a 350 in it , it had a Holley TBI unit on it ( I guess Jacob found it was bad ) . I can't remember the year , but I would say it was early 90's . Jacob , just to make sure , get the numbers off of the block , I never second guessed the guy I bought the K-5 off of as to it truely being a 350 , it may be a 305 and this would cause problems .......

05-04-2007, 10:04 PM	#3
sarge Pure Bacon Join Date: Jan 2007 Location: Trenton, Oh Posts: 1,098	the intake and TBI were already off the burb sitting inthe rear seat , I pulled the ECM out from under the dash and I can't remember is I found the dist. or not . The guy I got the K-5 from worked at GM and told me that he blew the 305 and put a crate 350 in it a few months before I got it . It looked like the standard Mexican 350 with the perimeter bolt valve covers that you can get for like $1400.00 . The burb ( if I remember correctly ) was not the old square style ( 80's ) but more like a 90's . I have a 90 and it was still the square style so I don't know when they changed. I think the ecm is the 7747 , I think I checked when I was going to order a harness.

05-06-2007, 01:40 PM	#4
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	The number on the ECM is 1228747. Where on the block is the number for the motor? That motor might very well be a 305, b/c i bought a new 350 harmonic balancer for it and I can not get it to TDC for the life of me. The coil i replaced in the distributor was a little plastic thing with copper wire coiled around it. It sat underneath the rotor button and it was connected to the sensor in the distributor.

05-06-2007, 11:35 PM	#6
sarge Pure Bacon Join Date: Jan 2007 Location: Trenton, Oh Posts: 1,098	Jacob , don't freak if it is a 305 , I have all the 305 stuff off my Camaro.

05-07-2007, 01:19 PM	#7
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	The number on the block is 14010207