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post #1 of (permalink) Old 01-27-2005, 04:48 PM Thread Starter
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Can i do this

I hate to make another post about the same bs but i dont want to confuse anybody.

My brand new motor is trash. Well the block and 3 of the pistons. This motor is tbi.

I have a good carb motor that has bad crank bearings. Can i take my new bottom end from the injected motor. Have the pistons from the carb'd motor pressed onto my new rods and then have my head redone and put it all together with the tbi.

Basically i guess im askin if the block is the same for an injected and a carb motor. Also is the head the same.

Thanks again for all the help.
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post #2 of (permalink) Old 01-27-2005, 04:55 PM
 
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Re: Can i do this

There the same
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post #3 of (permalink) Old 01-27-2005, 04:55 PM
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Re: Can i do this

People swap the F.I. stuff over to their carbed motors all the time. I would say that the blcoks are the same.
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post #4 of (permalink) Old 01-27-2005, 04:56 PM
 
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Re: Can i do this

Jinks [img]images/graemlins/neener.gif[/img] [img]images/graemlins/grin.gif[/img]
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post #5 of (permalink) Old 01-27-2005, 05:23 PM
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Re: Can i do this

Thhe bore is the same, but the stroke is not. If the one that is damage is a 1298cc and the carb motor is a 1324 cc, you might want to check further. No problem on the head. Just the efi cam does not have a lobe to work a fuel pump.
carb model is a 2.91 bore with a 3.03 stroke.
efi model is a 2.91 bore with a 2.97 stroke.
Dont know if it all in the crank or crank and rod.
Compression ratio for a carb model is 8.9:1
compression ratio for a efi model is 9.5:1

Maybe Sarge can give you a little more insight on this.
[ QUOTE ]
I hate to make another post about the same bs but i dont want to confuse anybody.

My brand new motor is trash. Well the block and 3 of the pistons. This motor is tbi.

I have a good carb motor that has bad crank bearings. Can i take my new bottom end from the injected motor. Have the pistons from the carb'd motor pressed onto my new rods and then have my head redone and put it all together with the tbi.

Basically i guess im askin if the block is the same for an injected and a carb motor. Also is the head the same.

Thanks again for all the help.

[/ QUOTE ]
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post #6 of (permalink) Old 01-27-2005, 05:48 PM
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Re: Can i do this

I am currently running a 1.3 factory EFI Block---Has factory flat top pistons. With the head from a factory carbed motor.
Works great.
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post #7 of (permalink) Old 01-27-2005, 06:25 PM Thread Starter
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Re: Can i do this

Flat top. Like no valve cutouts. If thats the case im gonna get pissed cuz the new pistons ive got have relief cutouts.

Also are you efi or carb.

Ill be doing the exace opposite that you are. So i guess it will work.
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post #8 of (permalink) Old 01-27-2005, 06:56 PM
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Re: Can i do this

ka4yqi said:
[ QUOTE ]
The bore is the same, but the stroke is not. If the one that is damage is a 1298cc and the carb motor is a 1324 cc, you might want to check further.

[/ QUOTE ]

The way you can tell is by looking on the edge of the block at the rear, I believe on the driver's side. It will have 1298 or 1324 in raised letters there.

Perhaps this was the original problem: You had 1324cc rods/crank installed in a 1298cc block. As ka4yqi further points out:

[ QUOTE ]
carb model is a 2.91 bore with a 3.03 stroke.
efi model is a 2.91 bore with a 2.97 stroke.

[/ QUOTE ]

Maybe one piston survived because the rod was a 1298cc unit unlike the rest.

If that's the case, don't feel too bad. I rinsed a remanufactured 1324cc engine by playing with the fuel pump acutator lever (broke the diaphragm!)before installing it.

$1300.00 down the drain! [img]images/graemlins/wall.gif[/img]
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post #9 of (permalink) Old 01-27-2005, 07:05 PM Thread Starter
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Re: Can i do this

No there the rods that came out of the block. They were ok so i reused them.

Are these motors interference motors. It didnt jump time as far as i can tell. The marks were still lined up when i took it apart but who knows.

The pistons might be different tho. Cuz they were new.
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post #10 of (permalink) Old 01-27-2005, 10:07 PM
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Re: Can i do this

No both are non-interference engines.
Did you use the crank out of the carb block? if so that could have been you problem. If the stroke had been lengthen, then you have to use a shorter rod. If not the piston is going to get close if not further than the deck height.
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