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Stock engine and mods #751293
August 05th 2019 11:15 am
August 05th 2019 11:15 am
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Just4fun1991 Offline OP
member
Just4fun1991  Offline OP
member
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa

Ok, I own a 1991 G20 Chevy Conversion van. Conversion done by Aero out of Kansas City I think. It has a 5.7 / 350 engine with 700R4 transmission. It's "fuel injected" but more like TBI I believe. I have been dreaming of someday doing an LS swap like others here on this site. It's a dream right now. Last year I changed the plugs, wires, cap, rotor, radiator and heater core. I just can't see taking out an engine that runs ok just cause it's a dream of mine. When the engine goes out (just turned 100K this summer) I will look at doing an LS swap.

Is there anyone who has taken the stock air cleaner and used the K&N air cleaner? Did you or can you tell any difference?

Can I ask what you have done to your stock engine to either increase MPG or get a few more horses out of your engine without breaking any bank account.

Thanks
Bob

Re: Stock engine and mods [Re: Just4fun1991] #751325
August 06th 2019 12:08 am
August 06th 2019 12:08 am
Joined: Sep 2017
Posts: 53
MN
JAGI410 Offline
journeyman
JAGI410  Offline
journeyman
Joined: Sep 2017
Posts: 53
MN
K&N filter might help a little bit. Exhaust would likely be a good idea too. You'll need it for the LS swap anyway, and if you do it right, it'll be an easy adjustment for the new motor.


Jason
1984 Chevy G20 5.3L/4L60E
Re: Stock engine and mods [Re: Just4fun1991] #751337
August 06th 2019 9:25 am
August 06th 2019 9:25 am
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Just4fun1991 Offline OP
member
Just4fun1991  Offline OP
member
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Well, I knew and still know the family I bought the van from. The dad put a "thrush muffler" on the van 20 years ago. Someone cut off the "cat" and put in a straight pipe. Single exhaust.
I may dabble and get a K&N air filter.

It's my dream to find a 5.3 and do an LS swap like Jason AKA JAGI410 (amazing job and beautiful van)

I start to drool every time I go back and read your post and look at the pics you did of the swap. The one pic I am curious to see though is where you mounted the computer and how to wiring turned out.

Re: Stock engine and mods [Re: Just4fun1991] #751363
August 06th 2019 10:53 pm
August 06th 2019 10:53 pm
Joined: Sep 2017
Posts: 53
MN
JAGI410 Offline
journeyman
JAGI410  Offline
journeyman
Joined: Sep 2017
Posts: 53
MN
I gotta tell ya man, the 5.3 completely changed the beast. I'm so in love with this thing. I've been helping a friend with his 82 4x4 Chevy van, and he has a healthy stock 350. Had my 305 ever run as nice as his, I may never have done the swap. But I'm so glad I did.

I mounted the computer under the battery. It's the perfect spot for it! I'll get some pics soon. I did all the wiring myself, it's really not difficult. The instructions on LT1swap.com were a huge help.

Hopefully you're coming up to Nats in Minnesota next year, you can see it in person!


Jason
1984 Chevy G20 5.3L/4L60E
Re: Stock engine and mods [Re: Just4fun1991] #751375
August 07th 2019 9:01 am
August 07th 2019 9:01 am
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Just4fun1991 Offline OP
member
Just4fun1991  Offline OP
member
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
I will be at Van Nats in Albert Lea MN. I would love to see the installation in person and ask more "why questions" along with "get ideas"

Really looking forward to the event. What part of MN are you located by/in?

Bob

Re: Stock engine and mods [Re: Just4fun1991] #751382
August 07th 2019 10:08 am
August 07th 2019 10:08 am
Joined: Dec 2017
Posts: 238
Portland, OR
Scrojira Offline
enthusiast
Scrojira  Offline
enthusiast
Joined: Dec 2017
Posts: 238
Portland, OR
[Linked Image]

Re: Stock engine and mods [Re: Just4fun1991] #751403
August 07th 2019 11:22 pm
August 07th 2019 11:22 pm
Joined: Sep 2017
Posts: 53
MN
JAGI410 Offline
journeyman
JAGI410  Offline
journeyman
Joined: Sep 2017
Posts: 53
MN
Originally Posted by Just4fun1991

Really looking forward to the event. What part of MN are you located by/in?

Bob


I'm in the NW part, not far from Fargo, ND!


Jason
1984 Chevy G20 5.3L/4L60E
Re: Stock engine and mods [Re: JAGI410] #751404
August 08th 2019 1:35 am
August 08th 2019 1:35 am
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Just4fun1991 Offline OP
member
Just4fun1991  Offline OP
member
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa



Ok, sometimes I get on the Harley and make it into southern MN. I don't usually make it that far north! We'll see you at V/N

Bob

Last edited by Just4fun1991; August 08th 2019 1:36 am.
Re: Stock engine and mods [Re: Just4fun1991] #751405
August 08th 2019 1:39 am
August 08th 2019 1:39 am
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Just4fun1991 Offline OP
member
Just4fun1991  Offline OP
member
Joined: Feb 2018
Posts: 140
Cedar Rapids, Iowa
Hey Jason

I was going to ask you. Is your LS Swap is the 5.3 block from an truck (cast block) or is it out of a sports car (alum block)?

Would you suggest a cast block vs alum block? Is there a big weight difference? Just curious, I am looking for a 5.3 now, thanks!!!!

Bob

Re: Stock engine and mods [Re: Just4fun1991] #751500
August 10th 2019 8:35 am
August 10th 2019 8:35 am
Joined: Sep 2017
Posts: 53
MN
JAGI410 Offline
journeyman
JAGI410  Offline
journeyman
Joined: Sep 2017
Posts: 53
MN
Iron block "LM7". It's the most common truck motor, and 100lbs heavier than the aluminum block versions. It's easier to find, and therefore cheaper too!


Jason
1984 Chevy G20 5.3L/4L60E

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