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1992 g20 Engine advice!! #726286
July 31st 2017 2:20 pm
July 31st 2017 2:20 pm
Joined: Jul 2017
Posts: 1
Buffalo, New York
Seemoresay Offline OP
Seemoresay  Offline OP
Joined: Jul 2017
Posts: 1
Buffalo, New York
Hello everyone! I’m here looking for a bit of advice regarding my van.

A few months ago I purchased a 1992 Chevrolet G20, I’ve been looking for a van of this type for a while and this was the only one that I could find which hit most of my criteria. The van was mainly purchased to keep miles off my normal car as well as something I could use when doing contracting work on the side. Overall I’m very happy with the van but right now it isn’t able to perform one of the bigger reasons I had for buying it, which is towing a fishing boat a few times a year for trips around 200 miles each way. I attempted to tow a while ago and found out the hard way that I didn’t have a transmission cooler! Many quarts of transmission fluid and some newly installed gauges and I was ready to give it a go again. The next time we tested it the transmission ran ok temps were fine but I found that the old v6 really is just tired and not strong enough for the job. So this brings me to my huge dilemma, do I have the engine rebuilt or replace with a 350? Whichever route I go I do plan on having the transmission rebuilt as well as changing out the rear end, but right now I’m just wanting to make a plan as to what to do with the engine.

Is it even possible to get the power needed to move both the 3600lb van and a boat out of the v6?

Is it better to just buy a truck block ( and then purchase all the accessories separately or would a pre-assembled engine ( work?

Aside from the engine swap, will I be ok retaining the stock fuel pump or will that need to be changed out?

Any other parts that I should plan on replacing? I read on another thread that the wiring for a v6 isn’t compatible with a 350, if this is the case is my idea even possible?

I plan on doing the work myself though I have never changed out an engine before. I have a few resources that I can use for general automotive assistance/knowledge but just thought I’d post here for some more van-specific help. Also I do not plan on going the route of a donor vehicle or purchasing a reman engine, either rebuild the one that I have currently if it would even be worth it, or a new crate engine.

Re: 1992 g20 Engine advice!! [Re: Seemoresay] #726292
July 31st 2017 3:31 pm
July 31st 2017 3:31 pm
Joined: Jun 2010
Posts: 13,421
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,421
Van Diego California
Welcome to the site Seemoresay ...... if were me Id put a 454 in it

Again welcome ...

'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
Re: 1992 g20 Engine advice!! [Re: Seemoresay] #726297
July 31st 2017 6:45 pm
July 31st 2017 6:45 pm
Joined: Feb 2002
Posts: 406
vanland Des Moines
Lionvan Offline
Lionvan  Offline
Joined: Feb 2002
Posts: 406
vanland Des Moines
I bought that K engine for $1783 at Jegs . Called them on Tuesday had the engine in Des Moines Friday.

[IMG]A foolish faith in authority is the worst enemy of truth. Question Authority.

Moderated by  Astro 


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