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| | | Re: LS swap into 1986 G20 Van | Joined: Dec 2021 Posts: 18 Likes: 6 stranger | stranger Joined: Dec 2021 Posts: 18 Likes: 6 | Thanks Lukestar and Newkirkinc1, encouragement appreciated. I am really enjoying sharing my project with folks that might actually be interested in what I am trying to do.
1986 G20 'GetAway' conversion van, family purchased new 2005 LS 5.3 from Avalanche donor 4L60E Overdrive Transmission Donor Fuel Module (PWM retained) in new 33 gal tank 'MeterMatch' module converts new fuel module to old gas gauge 'CableX' cable transmission adapter to old speedometer
| | | Re: LS swap into 1986 G20 Van | Joined: Aug 2002 Posts: 18,536 Likes: 135 Supreme Master | Supreme Master Joined: Aug 2002 Posts: 18,536 Likes: 135 | Yeah man keep those updates coming. Arianrhod:2003 Chevy Astro Black Magic: 1985 Dodge B-250 Serenity:1985 Chevy G-20 The Outcast:1983 Ford club wagon Luna 1974 VW bay window transporter Freedom:1990 Ford E-150(parts van) Outcast Vanners van club Support your local 2% | | | Re: LS swap into 1986 G20 Van | Joined: Jul 2019 Posts: 11,241 Likes: 411 Post Junkie | Post Junkie Joined: Jul 2019 Posts: 11,241 Likes: 411 | Ditto. Sharing our experiences help everyone, Clean work and your are doing your Van justice, | 1 member likes this:
Jimkinmd | | | Re: LS swap into 1986 G20 Van | Joined: Aug 2009 Posts: 936 Likes: 36 old hand | old hand Joined: Aug 2009 Posts: 936 Likes: 36 | I'm sure there are others like myself on this web site that wish we could have an LS motor in ours.......looks good.
Last edited by soundhd; December 29th 2021 6:37 pm.
Recently purchased (10-2021) a 1991 Chevy G-20 “Shorty”. Past vans are a 1976 Chevy G-10 (purchased new in 1976 & sold in 1995). A 1978 Chevy G-20 Shorty purchased in 2010 and sold in 2015.
| | | Re: LS swap into 1986 G20 Van | Joined: Apr 2007 Posts: 249 Likes: 59 G Van Man | OP G Van Man Joined: Apr 2007 Posts: 249 Likes: 59 | Ditto. Sharing our experiences help everyone, Clean work and your are doing your Van justice, Not a fan of less than a 6.0L. I would take a 5.7L vortec with a little work over a 6.0L even. Low-end torque is not a LS engines strong suit, especially a 5.3L or smaller. With that much of a raised roof, need lots of low rpm torque like a 383, 454 or 8.1 would make to cruise along in overdrive. 4L60E is also not going to be very happy pulling that around. Suggest atleast at the minimun a deep pan, big cooler after the radiator cooler and maybe a shift kit with 2nd and 4th gear billet servos from Sonnax. Would also swap to a 4.30 rear gear if its a 5.3L. Even though they only made 165ish hp a stock 305 made good low-speed torque with peak torque down at 2,000 rpm. Mine woke up alot with a performer rpm intake, thorley tri-ys, rejetted and tweaked Q-Jet and a performance oriented distributor recurve. Was really good on fuel with the 700r4 and 3.08 gears. Also even though I liked the look of the older individual gauges, I swapped my 83 to the newer style open dash bezel. Really made the gauges easier to read at a glance. 91+ used an electric speedo.
Last edited by 1983G20Van; January 02nd 2022 3:48 pm.
1983 G20 Conversion Van, 350 TPI, Reed Hydraulic Roller cam, Ported 906 Vortec, Edelbrock 3817 TPI-Vortec Base, Doug Thorley Tri-Ys, Dual 2 1/2" exhaust, Speed Density 7730 ECM tuned by ME, 700r4 by ME, Stock 1,600 rpm converter, Rebuilt Stock 10 bolt with posi by ME, 3.08 gears, 358 RWHP @ 5,200, 384 RWTQ @ 3,400, 14.66 @ 95.43 w 2.28s 60'
| | | Re: LS swap into 1986 G20 Van | Joined: Jun 2010 Posts: 18,286 Likes: 558 | Joined: Jun 2010 Posts: 18,286 Likes: 558 | After you cook your tranny replace with a 4L80E, my 454's have beat mine and they still ask for more abuse ....
I have 4L80E's in both my vans and recommend them to any body !
'92 454 4L80E 4.10 on 245 tires
'93 454 4L80E np205 4.56 ft & rear on 315 tires
They are both fun and both take a lickin ...
SUNSHINE VANS-VAN DIEGO ADRENALIN BY THE GALLON & CHASIN RACIN ONE FOR THE DIRT & ONE FOR THE STREETS '93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB '92 CHEVY G30 454 BEAUVILLE EXT 146" WB | | | Re: 1997 Chevy Express Cobra Conversion | Joined: Apr 2007 Posts: 249 Likes: 59 G Van Man | OP G Van Man Joined: Apr 2007 Posts: 249 Likes: 59 | Been over a month since I was at the shop. Between being short staffed, people taking vacation, a couple of covid cases and an injury on the job, as a manager been too dang busy to stop from work. Also taken a day off work and had my free time occupied helping my mom recover from rotator cup shoulder surgery. Finally got over to the shop in time for it to be 19°F outside and 45°F inside. Worked on the Express some and then cold started and ran it for a while. Good to hear her run today though. Even though I have not even touched the cold start tuning in 45°F after sleeping more than a month, it started and ran well. https://youtu.be/2Ydppg2TtQUWith the 3" electric cutouts open the 383 cold idles like a dang Sherman tank!!! https://youtu.be/fdiwYVWuxm8I love the way a WW2 tank sounds on startup BTW!
Last edited by 1983G20Van; January 03rd 2022 12:08 am.
1983 G20 Conversion Van, 350 TPI, Reed Hydraulic Roller cam, Ported 906 Vortec, Edelbrock 3817 TPI-Vortec Base, Doug Thorley Tri-Ys, Dual 2 1/2" exhaust, Speed Density 7730 ECM tuned by ME, 700r4 by ME, Stock 1,600 rpm converter, Rebuilt Stock 10 bolt with posi by ME, 3.08 gears, 358 RWHP @ 5,200, 384 RWTQ @ 3,400, 14.66 @ 95.43 w 2.28s 60'
| | | Re: 1997 Chevy Express Cobra Conversion | Joined: Jul 2019 Posts: 11,241 Likes: 411 Post Junkie | Post Junkie Joined: Jul 2019 Posts: 11,241 Likes: 411 | Man that sounds nice. Hope your Mom get well soon. I can relate to being short staffed at my job as well. | | | Re: 1997 Chevy Express Cobra Conversion | Joined: Jun 2010 Posts: 18,286 Likes: 558 | Joined: Jun 2010 Posts: 18,286 Likes: 558 |
SUNSHINE VANS-VAN DIEGO ADRENALIN BY THE GALLON & CHASIN RACIN ONE FOR THE DIRT & ONE FOR THE STREETS '93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB '92 CHEVY G30 454 BEAUVILLE EXT 146" WB | | |
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