86 motor in our trucks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RicksTrucks · 11-01-2006, 08:55 AM

Will a motor, 350, out of an 86 Silverado drop into our trucks? What year did carburation stop?

woodridge · 11-01-2006, 01:05 PM

86 should be TBI, change the intake and put a carb on it and you should be good to go.

HuggerCST · 11-01-2006, 01:10 PM

An 86 truck engine would be carb I believe. I think 87 was the first year for TBI in trucks, but I could be wrong. Should bolt right in, but will have lots of emission crap on it.

lilpup69chevy · 11-01-2006, 01:22 PM

87 was the first year for tbi in trucks, 86 would be a carb engine but i'd make sure it was a 350 first most 86 trucks had the 305 unless it was a 3/4 ton or a ton truck, the 86 350 would have had small valves more than likely, it could have 882s' i imagine which are 76 cc 194, 150 valves and those can be made fairly decent, but if its a driver yes it will work only thing is to be correct you will have to use the short water pump because it will have the long pump hope that helps

Blue85 · 11-01-2006, 09:15 PM

Maniflods probably are a bit different, but if you have headers it shouldn't matter, when i swapped 73 motor in my 85 i had to use the manifolds that came on the 73 engine, can't remember exactly why though.

Crank · 11-01-2006, 10:24 PM

I think the reason Blue85 used the early manifolds is because of the dipstick location. I got an early engine in my '86 and doesnt have a dipstick because the manifolds are stock on that truck... I just change the oil alot
Brandon

**Boog** · 11-01-2006, 10:44 PM

Yes you can use the 86 engine in your truck. I have an 88 engine in my 69. The blocks are the same physically. You need to use the rams horn manifolds or headers. If you get an injected engine you can swap to a carb by swapping the intakes. You may have to mod the 2 center manifold bolt holes on each side of the stock intake as the later models are drilled straight up. No big deal. I have an Edel performer intake on mine with stock quadrajet and headers.

dave2953 · 11-02-2006, 12:40 AM

I have a 305 in my 68 that came out of an 86. I just took the 86 manifold off and put my carb/intake from my old 307 on and it worked fine. As mentioned above, I used my factory ram horn manifolds. It was a direct swap.

Blue85 · 11-02-2006, 12:44 AM

Quote:

Originally Posted by Crank

I think the reason Blue85 used the early manifolds is because of the dipstick location. I got an early engine in my '86 and doesnt have a dipstick because the manifolds are stock on that truck... I just change the oil alot
Brandon

Yep, that is what the problem was!

lilpup69chevy · 11-02-2006, 02:16 AM

yes some have the dipstick on either side, the 80's were some wierd years for that as well

lilpup69chevy · 11-02-2006, 02:17 AM

to whom is using the 88 block if it was the tbi engine i would assume you have a electric fuel pump? i have an 88 engine in my blazer and all the late model engines have what looks like the spot for the manual fuel pump but it is not machined out

**Boog** · 11-03-2006, 10:04 PM

Lilpup. I do have the 88 truck engine in my 69. Originally a tbi engine but now carb'd. The block is bored for a mechanical pump and it came with a blockoff plate bolted to it. Some 88 and 89 blocks still had the mech fuel pump provision. Later on the blocks were cast without the pushrod hole in them. All I had to do was remove the blockoff plate and install the pushrod and pump. It's no big deal to install an electric pump inline if your block isn't bored for the mech one.

BLACK AND BLUE 67-72 · 11-04-2006, 03:18 PM

Mine has a 350 out of an 89 Chevy in it, bolts right in

lilpup69chevy · 11-04-2006, 03:41 PM

mine had the blockoff plate bolted on it but when i took it off it wasn't machined for the mechanical pump so i just used in inline electrical pump works fine, maybe this block wasn't an 88 as said it was thats what the guy told me i know at first it had the centerbolt heads on it then i ditched them

11-01-2006, 08:55 AM	#1
RicksTrucks Senior Member Join Date: Jan 2005 Location: Claremore, OK 74017 Posts: 2,640	86 motor in our trucks Will a motor, 350, out of an 86 Silverado drop into our trucks? What year did carburation stop? __________________ 68 Short Stepside C-10 69 SWB C-10 70 Flatbed C-20 70 LWB C-20 BB402 70 LWB C-10 CST 70 LWB C-10 CST 71 Short Stepside Cheyenne C-10 72 LWB C-10 72 Blazer 4x4 4spd 95 Jeep Cherokee 4x4

11-01-2006, 01:05 PM	#2
woodridge Senior Member Join Date: Feb 2005 Location: Maynardville, Tn Posts: 3,030	Re: 86 motor in our trucks 86 should be TBI, change the intake and put a carb on it and you should be good to go. __________________ SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet

11-01-2006, 01:10 PM	#3
HuggerCST Registered User Join Date: Jul 2001 Location: North Louisiana Posts: 4,501	Re: 86 motor in our trucks An 86 truck engine would be carb I believe. I think 87 was the first year for TBI in trucks, but I could be wrong. Should bolt right in, but will have lots of emission crap on it. __________________ Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com

11-01-2006, 01:22 PM	#4
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: 86 motor in our trucks 87 was the first year for tbi in trucks, 86 would be a carb engine but i'd make sure it was a 350 first most 86 trucks had the 305 unless it was a 3/4 ton or a ton truck, the 86 350 would have had small valves more than likely, it could have 882s' i imagine which are 76 cc 194, 150 valves and those can be made fairly decent, but if its a driver yes it will work only thing is to be correct you will have to use the short water pump because it will have the long pump hope that helps __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)

11-01-2006, 09:15 PM	#5
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	Re: 86 motor in our trucks Maniflods probably are a bit different, but if you have headers it shouldn't matter, when i swapped 73 motor in my 85 i had to use the manifolds that came on the 73 engine, can't remember exactly why though. __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

11-01-2006, 10:24 PM	#6
Crank Registered User Join Date: Aug 2002 Location: Crittenden, KY Posts: 1,965	Re: 86 motor in our trucks I think the reason Blue85 used the early manifolds is because of the dipstick location. I got an early engine in my '86 and doesnt have a dipstick because the manifolds are stock on that truck... I just change the oil alot Brandon

11-01-2006, 10:44 PM	#7
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,382	Re: 86 motor in our trucks Yes you can use the 86 engine in your truck. I have an 88 engine in my 69. The blocks are the same physically. You need to use the rams horn manifolds or headers. If you get an injected engine you can swap to a carb by swapping the intakes. You may have to mod the 2 center manifold bolt holes on each side of the stock intake as the later models are drilled straight up. No big deal. I have an Edel performer intake on mine with stock quadrajet and headers. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

11-02-2006, 12:40 AM	#8
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: 86 motor in our trucks I have a 305 in my 68 that came out of an 86. I just took the 86 manifold off and put my carb/intake from my old 307 on and it worked fine. As mentioned above, I used my factory ram horn manifolds. It was a direct swap. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

11-02-2006, 02:16 AM	#10
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: 86 motor in our trucks yes some have the dipstick on either side, the 80's were some wierd years for that as well __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)

11-02-2006, 02:17 AM	#11
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: 86 motor in our trucks to whom is using the 88 block if it was the tbi engine i would assume you have a electric fuel pump? i have an 88 engine in my blazer and all the late model engines have what looks like the spot for the manual fuel pump but it is not machined out __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)

11-03-2006, 10:04 PM	#12
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,382	Re: 86 motor in our trucks Lilpup. I do have the 88 truck engine in my 69. Originally a tbi engine but now carb'd. The block is bored for a mechanical pump and it came with a blockoff plate bolted to it. Some 88 and 89 blocks still had the mech fuel pump provision. Later on the blocks were cast without the pushrod hole in them. All I had to do was remove the blockoff plate and install the pushrod and pump. It's no big deal to install an electric pump inline if your block isn't bored for the mech one. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross Last edited by Boog; 11-03-2006 at 10:05 PM.

11-04-2006, 03:18 PM	#13
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Re: 86 motor in our trucks Mine has a 350 out of an 89 Chevy in it, bolts right in __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

11-04-2006, 03:41 PM	#14
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: 86 motor in our trucks mine had the blockoff plate bolted on it but when i took it off it wasn't machined for the mechanical pump so i just used in inline electrical pump works fine, maybe this block wasn't an 88 as said it was thats what the guy told me i know at first it had the centerbolt heads on it then i ditched them __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)



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