NEED HELP.... FAST!!! (ENGINE SWAP ???'s) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

yellowGT · 08-03-2006, 05:10 PM

I have an opportunity to get me a LT1 from a 95 impala and i want to put it in my 84 chevy swb. The only thing is that I dont really know if it will fit or what I have to do to make the conversion. Truck currently has a stock 305 in it so maybe that will help some of you that have more of a mechanical brain than me. Help me figure this thing out cause i dont want to lose that motor to someone else. Any help would be appreciated.

Reply asap or call me with some helpful info at 469-569-3204

Slonaker · 08-03-2006, 05:28 PM

I would do a search. It has been covered pretty well in the past. I don't know details. I'm still stuck in the 80s.

Slonaker

BIGCHEVYMAN · 08-03-2006, 05:28 PM

Quote:

Originally Posted by yellowGT

I have an opportunity to get me a LT1 from a 95 impala and i want to put it in my 84 chevy swb. The only thing is that I dont really know if it will fit or what I have to do to make the conversion. Truck currently has a stock 305 in it so maybe that will help some of you that have more of a mechanical brain than me. Help me figure this thing out cause i dont want to lose that motor to someone else. Any help would be appreciated.

Reply asap or call me with some helpful info at 469-569-3204

The motor inself will bolt right in just like your 305. BUT you will need a ecm and wireing harness for the motor, and also don't forget that these engines have a reverse flow cooling system. It would be a nice engine in one of these trucks.

yellowGT · 08-03-2006, 05:39 PM

Quote:

Originally Posted by BIGCHEVYMAN

The motor inself will bolt right in just like your 305. BUT you will need a ecm and wireing harness for the motor, and also don't forget that these engines have a reverse flow cooling system. It would be a nice engine in one of these trucks.

thanks bigchevyman, The motor will come with the computer and everything else from top to bottom but dont know if it will come with the harness. Wouldnt the reverse flow cooling system be already in it if its all complete?

BIGCHEVYMAN · 08-03-2006, 05:46 PM

Quote:

Originally Posted by yellowGT

thanks bigchevyman, The motor will come with the computer and everything else from top to bottom but dont know if it will come with the harness. Wouldnt the reverse flow cooling system be already in it if its all complete?

yes it would, i would get the radiator if i could. i'm not sure if you will need it but it dosen't hurt to have it just in case.

yellowGT · 08-03-2006, 05:52 PM

Quote:

Originally Posted by BIGCHEVYMAN

yes it would, i would get the radiator if i could. i'm not sure if you will need it but it dosen't hurt to have it just in case.

Would i need to change the sending unit, fuel rails or anything else besides the harness? How much am I looking at if i get the harness you think? would the harness from the impala work?

**Captkaos** · 08-03-2006, 05:59 PM

GET THE HARNESS WITH THE MOTOR!! Along with the computer and the radiator. You really don't want to skip the harness, it could cost you from $400-900 for a stand alone harness. Pulling the wires you don't want out is much easier than buying a computer AND a harness for it. Plus the weatherpack plugs are EXPENSIVE!

If it were me, I would get from the radiator to the driveshaft and I would get the manifolds down to the Cats. AND I would get EVERYTHING the harness connects to for the engine. Anything you don't use LABEL it.

84 400 · 08-03-2006, 08:41 PM

the cap got it man
some one on here did a similar swa for a eskalde motor i think
goode luck

Jonboy · 08-04-2006, 09:34 AM

You will need to move the right side engine mount back on the frame, and notch that side if you are going to use the A/C compressor. I would suggest using the fuel tank out of an '87, as it will have the baffles for EFI.

82c10 · 08-04-2006, 05:29 PM

this might also help a little bit http://www.hotrodlane.cc/PDFFILES/83chevyLT1install.pdf

yellowGT · 08-04-2006, 06:36 PM

Quote:

Originally Posted by 82c10

this might also help a little bit http://www.hotrodlane.cc/PDFFILES/83chevyLT1install.pdf

Thanks thats real helpful information and probably real costly too so im really going to think about it now.

**Captkaos** · 08-05-2006, 12:15 AM

My info is located here:
http://67-72chevytrucks.com/vboard/s...d.php?t=193657
OR Here:
http://p210.ezboard.com/f7387chevytr...cID=2395.topic

Low84 · 08-06-2006, 10:49 PM

Quote:

Originally Posted by yellowGT

Thanks thats real helpful information and probably real costly too so im really going to think about it now.

Go for it, don't want to do it by myself.

Yeah, I just bought an lt1 of a 93 formula, which I plan on installing on my 84.

Does anyone know if I can bolt up a th350 to the lt1?

magnethead · 08-07-2006, 01:51 AM

Quote:

Originally Posted by Low84

Go for it, don't want to do it by myself.

Yeah, I just bought an lt1 of a 93 formula, which I plan on installing on my 84.

Does anyone know if I can bolt up a th350 to the lt1?

dont they all still use the same generic engine block basically? It'll bolt up.

Jonboy · 08-07-2006, 08:51 AM

it will bolt up, but why? I would definitely go 4L60E.

magnethead · 08-07-2006, 10:38 AM

Quote:

Originally Posted by Jonboy

it will bolt up, but why? I would definitely go 4L60E.

same here. You want the overdrive at these gas prices

08-03-2006, 05:10 PM	#1
yellowGT Registered User Join Date: Jan 2006 Location: Garland, TX Posts: 970	NEED HELP.... FAST!!! (ENGINE SWAP ???'s) I have an opportunity to get me a LT1 from a 95 impala and i want to put it in my 84 chevy swb. The only thing is that I dont really know if it will fit or what I have to do to make the conversion. Truck currently has a stock 305 in it so maybe that will help some of you that have more of a mechanical brain than me. Help me figure this thing out cause i dont want to lose that motor to someone else. Any help would be appreciated. Reply asap or call me with some helpful info at 469-569-3204

08-03-2006, 05:28 PM	#2
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) I would do a search. It has been covered pretty well in the past. I don't know details. I'm still stuck in the 80s. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

08-03-2006, 05:59 PM	#7
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) GET THE HARNESS WITH THE MOTOR!! Along with the computer and the radiator. You really don't want to skip the harness, it could cost you from $400-900 for a stand alone harness. Pulling the wires you don't want out is much easier than buying a computer AND a harness for it. Plus the weatherpack plugs are EXPENSIVE! If it were me, I would get from the radiator to the driveshaft and I would get the manifolds down to the Cats. AND I would get EVERYTHING the harness connects to for the engine. Anything you don't use LABEL it. __________________ 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

08-03-2006, 08:41 PM	#8
84 400 Sb 400 club Join Date: Nov 2005 Location: NH / MA Posts: 2,746	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) the cap got it man some one on here did a similar swa for a eskalde motor i think goode luck __________________ 1984 chevy c10, built 400sb,.(SOLD) 77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed 1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out

08-04-2006, 09:34 AM	#9
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) You will need to move the right side engine mount back on the frame, and notch that side if you are going to use the A/C compressor. I would suggest using the fuel tank out of an '87, as it will have the baffles for EFI. __________________ 1974 Jimmy- 5.3/4L80e/NP241

08-04-2006, 05:29 PM	#10
82c10 needin' money Join Date: May 2005 Location: Chickasha, Oklahoma Posts: 1,106	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) this might also help a little bit http://www.hotrodlane.cc/PDFFILES/83chevyLT1install.pdf __________________ *SWB Stands for Short Wide Bed*

08-05-2006, 12:15 AM	#12
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) My info is located here: http://67-72chevytrucks.com/vboard/s...d.php?t=193657 OR Here: http://p210.ezboard.com/f7387chevytr...cID=2395.topic __________________ 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

08-07-2006, 08:51 AM	#15
Jonboy Slots go on anything! Join Date: May 2003 Location: Richardson, TX Posts: 5,957	Re: NEED HELP.... FAST!!! (ENGINE SWAP ???'s) it will bolt up, but why? I would definitely go 4L60E. __________________ 1974 Jimmy- 5.3/4L80e/NP241



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