What motors are compatible?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tuff Truck 41 · 09-20-2001, 04:20 PM

I have a 1973 chevy c-10 2wd pickup, I locked the motor up in it, and I need to know what motors will, bolt up, I know that chevy motors are very compatible, but I have know clue which ones will fit.

**Captkaos** · 09-20-2001, 06:48 PM

Any Chevy V8 will fit, Big Block or Small block, from inception to the 2002 models.
An inline6 will also fit.

------------------
Chris Lucas
1973 Chevy C-10
1975 Chevy Silverado
Captkaos Customs

Longhorn Man · 09-22-2001, 08:42 PM

What do you have in it right now? For 100% bolt in, you'll wanna stay with a simmilar motor as whats in it now. If you have a small block, you'll want a small block. If you have a big block, you'll be broke, if you have an inline six, you'll be searching for a while.

69step · 09-27-2001, 11:04 PM

will 350 out of 72 work in 86?

Burlinator · 09-28-2001, 12:18 AM

yes a 72 350 will fit any year will fit

------------------
71 Custom/10 lb fleet .040 over 350/th350 good ol 1 wheel peel 3.73 12 bolt 275/60/15 front 31x10.50 rear on GMC Safari wheels
#3 Dale Earnhardt will live forever in our hearts and memories
"THE WORLD'S GREATEST RACE CAR DRIVER EVER"
http://burlinator.freeservers.com/index.html

Longhorn Man · 10-06-2001, 10:43 PM

You'll have a bunch of wires you won't use as a '86 is computer controlled and a '72 isn't. And if emissions is a problem where you are, that will come into play at your next inspection, but yes, it will go in and work.

*Fast68Chevy* · 10-13-2001, 12:30 AM

Yeap, alot of the 81-up trucks and some SW6 HO 305 Firebirds, etc used the EST system, had electonically advanced distributor, knock sensor, etc.
You can run the 72 carb and dizzy on the engine when it goes in the 86, you dont have to use the plugs for the 86 carb or the extra plug for the '86 dizzy, engine wil still run, starting circuit is same.
And use the 86 alternator, it will swap on, as will all of the accesory brackets and pulleys.
Does the 72 engine stil have the original passenger side alternator set up(if is actually a 72 truck engine) ?

Make sure both engines have the 8" diameter torsional dampner(balancer), if not then swap the '86 balancer onto the '72 engine.

Even so, the 86 may not even have the EST sytem in it.

good luck

**Captkaos** · 10-15-2001, 02:25 PM

An '86 only has a ECS (Electronic Spark Control) and you should ditch it anyway. '87 was the first year for computer control.

------------------
Chris Lucas
1973 Chevy C-10
1975 Chevy Silverado
Captkaos Customs

09-20-2001, 04:20 PM	#1
Tuff Truck 41 Registered User Join Date: Sep 2001 Location: Wrightsville PA USA Posts: 6	What motors are compatible?? I have a 1973 chevy c-10 2wd pickup, I locked the motor up in it, and I need to know what motors will, bolt up, I know that chevy motors are very compatible, but I have know clue which ones will fit. __________________ Weld Shop Josh Clayton

09-20-2001, 06:48 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Any Chevy V8 will fit, Big Block or Small block, from inception to the 2002 models. An inline6 will also fit. ------------------ Chris Lucas 1973 Chevy C-10 1975 Chevy Silverado Captkaos Customs __________________ 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

09-27-2001, 11:04 PM	#4
69step Registered User Join Date: May 2001 Location: Sacto. Cali Posts: 66	will 350 out of 72 work in 86? __________________ 69 Stepside 350 373 rear, power disc. One day at a time

09-28-2001, 12:18 AM	#5
Burlinator Just Another Crazy Canuck Join Date: Dec 2000 Location: Richmond,British Columbia Canada Posts: 1,228	yes a 72 350 will fit any year will fit ------------------ 71 Custom/10 lb fleet .040 over 350/th350 good ol 1 wheel peel 3.73 12 bolt 275/60/15 front 31x10.50 rear on GMC Safari wheels #3 Dale Earnhardt will live forever in our hearts and memories "THE WORLD'S GREATEST RACE CAR DRIVER EVER" http://burlinator.freeservers.com/index.html __________________ 1985 454/465/205, 38.5x11-16BOGGERS soon to be installed: 14bDETROIT,Edelbrock Performer cam,intake and valve springs,Comp roller tips,MSD HEI

10-15-2001, 02:25 PM	#8
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	An '86 only has a ECS (Electronic Spark Control) and you should ditch it anyway. '87 was the first year for computer control. ------------------ Chris Lucas 1973 Chevy C-10 1975 Chevy Silverado Captkaos Customs __________________ 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

09-22-2001, 08:42 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	What do you have in it right now? For 100% bolt in, you'll wanna stay with a simmilar motor as whats in it now. If you have a small block, you'll want a small block. If you have a big block, you'll be broke, if you have an inline six, you'll be searching for a while.

10-06-2001, 10:43 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	You'll have a bunch of wires you won't use as a '86 is computer controlled and a '72 isn't. And if emissions is a problem where you are, that will come into play at your next inspection, but yes, it will go in and work.

10-13-2001, 12:30 AM	#7
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	Yeap, alot of the 81-up trucks and some SW6 HO 305 Firebirds, etc used the EST system, had electonically advanced distributor, knock sensor, etc. You can run the 72 carb and dizzy on the engine when it goes in the 86, you dont have to use the plugs for the 86 carb or the extra plug for the '86 dizzy, engine wil still run, starting circuit is same. And use the 86 alternator, it will swap on, as will all of the accesory brackets and pulleys. Does the 72 engine stil have the original passenger side alternator set up(if is actually a 72 truck engine) ? Make sure both engines have the 8" diameter torsional dampner(balancer), if not then swap the '86 balancer onto the '72 engine. Even so, the 86 may not even have the EST sytem in it. good luck



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