It's a riddle - Page 2

Hybrid · 05-09-2007, 05:13 PM

It doesn't look like any numbers are stamped on the ledge. Does this mean it is a crate 350?

Mike F · 05-09-2007, 06:44 PM

Maybe, maybe not if they quit stamping them. The target master blocks have different casting numbers. The casting number says it is a 1980 to 1985 regular production 350 block but my book only goes up to 88 and they may have brought that number block back for crate motors maybe, but why if they already have a block in production? Also 86 and later blocks have the displacement cast in the block.

The older target master blocks also had Hecho en Mexico above the casting number.

The head number may shed some light, the target master blocks supposedly use a 3998993 head at least untill 88 but so did some production motors.

I have found sights before on the net with curent casting number info I may get a chance to look for one.

Hybrid · 05-09-2007, 07:04 PM

I will check the numbers on the head, and post up as soon as i get them.

Hybrid · 05-14-2007, 12:23 PM

The numbers on the head are 462624 and there was another number below that one which was D290. Sorry it took so long, it was a busy weekend!

Mike F · 05-14-2007, 07:10 PM

That is a 77 to some time past 1988 350 cylinder head that has 1.94 or 2.02 intake valves and 1.50 or 1.60 exhaust valves depending if the head was for a intermediate or high performance motor.

The book also said that head is a light casting and will not take getting hot!

Looks like the motor is a stock 350 truck motor.

Hybrid · 05-14-2007, 08:38 PM

What should I do to fix this thing, now that I know it is a 350 I am completely out of ideas.

Mike F · 05-17-2007, 07:04 PM

You still need to tell me what the throttle body you have came off of and what the colors are on the tops of the injectors or what the part number is stamped on top of each injector if the paint marks are gone.

The IAC will retract when you turn off the ignition and should move to close off the port hole when the motor is started, if it does not the IAC could be bad. It will also move when you open up the throttle quickly. You can see it through the the hole on the top left rear corner of the trottle body.

I do not have a lot of extra time right now to mess with it, I have my jeep and others to get ready to wheel. (It was to cold to mess with this last winter.) I would end up rewiring if needed if the harness is compatible to install the 7747 ecm (the ecm used to cost $25.00 local) so I can get in it and get rid of the things you do not need. Maybe in a couple of weeks.

Hybrid · 05-17-2007, 09:21 PM

Thanks so much for your help so far! I will get those numbers (or colors) of the injectors and let you know. I don't know what the throttle body came off of, but sarge should know since he gave it to me.

94Dodge Truggy · 05-17-2007, 10:09 PM

Quote:

Originally Posted by Hybrid

Thanks so much for your help so far! I will get those numbers (or colors) of the injectors and let you know. I don't know what the throttle body came off of, but sarge should know since he gave it to me.

In an earlier post Sarge stated what the throttle body was from. Hopefully you will be able to get that beast out on the trail soon!

sarge · 05-18-2007, 02:29 AM

The second TBI I got was off of a full size Chevy panel Van it was a 350 but I do not know what year it was . the van was crushed . they took the motor out to sell and I snagged the TBI off it .

blazerbrad · 05-18-2007, 12:12 PM

It may already be a moot point, but whether or not the TBI unit came off of a 305 or 350 it should not cause the issues you are having.

Mike F · 05-18-2007, 05:51 PM

Quote:

Originally Posted by blazerbrad

It may already be a moot point, but whether or not the TBI unit came off of a 305 or 350 it should not cause the issues you are having.

Maybe, maybe not, we now know it came off a 350 and that was not posted before. The system sarge said he had pulled had a holley throttle body on it and that it was supposidly bad. Now I would still like to know I am dealing with a 350 TBI and not a 4.3 TBI or even one for a 454 that is wired different from the others but plugs in the same!

If it is a 454 I will take it in trade to get it running!

(I will help you out anyways.)

The IAC may be bad and I posted how it should act and that also needs to be checked.

sarge · 05-24-2007, 12:58 AM

Mike ,

I can 100% say that the TBI was not from a big block or a 4.3 L . As far as it being a 350 or a 305 ..... I can not see them pulling a 305 , they are not worth anything . I knew the previous owner of the van and set the deal up for the van to be hauled in and the previous owner even said it was a 5.7 , but with that being said ..... I have run into alot of people who think GM put 350's in every V8 camaro made

Mike F · 05-24-2007, 05:43 PM

The 4.3, 5.0, and 5.7 throttle bodies look identical and are mostly except for the injectors and some yards do not know the injectors are different hence you could get the wrong one. It is probably a 5.7 one, but it is easy enough to make sure by looking at both the injectors. It should only take a couple of min to check them.

05-09-2007, 06:44 PM	#27
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	Maybe, maybe not if they quit stamping them. The target master blocks have different casting numbers. The casting number says it is a 1980 to 1985 regular production 350 block but my book only goes up to 88 and they may have brought that number block back for crate motors maybe, but why if they already have a block in production? Also 86 and later blocks have the displacement cast in the block. The older target master blocks also had Hecho en Mexico above the casting number. The head number may shed some light, the target master blocks supposedly use a 3998993 head at least untill 88 but so did some production motors. I have found sights before on the net with curent casting number info I may get a chance to look for one. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.

05-14-2007, 07:10 PM	#30
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	That is a 77 to some time past 1988 350 cylinder head that has 1.94 or 2.02 intake valves and 1.50 or 1.60 exhaust valves depending if the head was for a intermediate or high performance motor. The book also said that head is a light casting and will not take getting hot! Looks like the motor is a stock 350 truck motor. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.

05-17-2007, 07:04 PM	#32
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	You still need to tell me what the throttle body you have came off of and what the colors are on the tops of the injectors or what the part number is stamped on top of each injector if the paint marks are gone. The IAC will retract when you turn off the ignition and should move to close off the port hole when the motor is started, if it does not the IAC could be bad. It will also move when you open up the throttle quickly. You can see it through the the hole on the top left rear corner of the trottle body. I do not have a lot of extra time right now to mess with it, I have my jeep and others to get ready to wheel. (It was to cold to mess with this last winter.) I would end up rewiring if needed if the harness is compatible to install the 7747 ecm (the ecm used to cost $25.00 local) so I can get in it and get rid of the things you do not need. Maybe in a couple of weeks. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.

05-24-2007, 05:43 PM	#39
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	The 4.3, 5.0, and 5.7 throttle bodies look identical and are mostly except for the injectors and some yards do not know the injectors are different hence you could get the wrong one. It is probably a 5.7 one, but it is easy enough to make sure by looking at both the injectors. It should only take a couple of min to check them. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.

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05-09-2007, 05:13 PM	#26
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	It doesn't look like any numbers are stamped on the ledge. Does this mean it is a crate 350?

05-09-2007, 07:04 PM	#28
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	I will check the numbers on the head, and post up as soon as i get them.

05-14-2007, 12:23 PM	#29
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	The numbers on the head are 462624 and there was another number below that one which was D290. Sorry it took so long, it was a busy weekend!

05-14-2007, 08:38 PM	#31
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	What should I do to fix this thing, now that I know it is a 350 I am completely out of ideas.

05-17-2007, 09:21 PM	#33
Hybrid Join Date: Mar 2007 Location: Fairfield, OH Posts: 134	Thanks so much for your help so far! I will get those numbers (or colors) of the injectors and let you know. I don't know what the throttle body came off of, but sarge should know since he gave it to me.

05-18-2007, 02:29 AM	#35
sarge Pure Bacon Join Date: Jan 2007 Location: Trenton, Oh Posts: 1,098	The second TBI I got was off of a full size Chevy panel Van it was a 350 but I do not know what year it was . the van was crushed . they took the motor out to sell and I snagged the TBI off it .

05-18-2007, 12:12 PM	#36
blazerbrad - CORE Member - Join Date: Feb 2007 Posts: 831 Images: 6	It may already be a moot point, but whether or not the TBI unit came off of a 305 or 350 it should not cause the issues you are having.

05-24-2007, 12:58 AM	#38
sarge Pure Bacon Join Date: Jan 2007 Location: Trenton, Oh Posts: 1,098	Mike , I can 100% say that the TBI was not from a big block or a 4.3 L . As far as it being a 350 or a 305 ..... I can not see them pulling a 305 , they are not worth anything . I knew the previous owner of the van and set the deal up for the van to be hauled in and the previous owner even said it was a 5.7 , but with that being said ..... I have run into alot of people who think GM put 350's in every V8 camaro made