Gain extra benefits by becoming a Supporting Member Click here find out how!
Silver
Gold ***Platinum***
50chev1067 (2)Don H (5)Runningon6zonk2ajoda (6)
ShoeboxTOMD45 buscobill56chev72 kstad Daves 57 Bel Air (7)
Ev the Swedecoachfrank casaderoBig T (9)hubba-hubbaKingy
Steve_Rivard L72Belair Capricesport66 (5)1959.Biscayne
1963SBHD (4)Dean50 (8)Backyardbuild
elvis (7)NamGrunt66
walkthru
jumbojim (3)
InkaholicMike (3)
Classic Performance Products
Ciadella Interiors American Auto Wire Art Morrison.com
Exile® Battery Keeper™ 6/12 volt charger w/ LED battery monitor
Hellwig Products IncPerformance Rod & Custom
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

  >> Switch to Mobile Version <<

Recent Hot Topics
Current Quote
"I just want to say thanks to all of the contributors on this forum. There is a wealth of knowledge here and a super willingness to share. I can't get better and faster answers here than on ANY other board and I do frequent a lot of forums. THANKS AGAIN!!"
~ Member
Recent Topics
Join the Community today
**
New ** Easy eBay Search Tool







Username Post: 366 Tall Deck BBC in 87 3/4 ton        (Topic#224676)
Chevyguy04 
Member
Posts: 213

Reg: 05-23-05
08-27-09 06:15 PM - Post#1761638    

Ok I just bought an 87 3/4 ton, gonna use it for offroading and I have had an old TBI 366 tall deck big block laying around (dont even say it I know people are going to say boat anchor I got it for free) I want to put it in the truck for the time being until I have time to build up a 427 Tall deck big block (there that makes up for the 366) that I have.

I dont know a ton about the 366T BBC I do know about tall decks tho. Does anyone know if it will work in the truck??? The motor that came out was a TBI motor.

Also does anyone know what kind of power a 1991 366 tall deck motor had??? or has any info on the tall decks I am always looking for more sources.

For those of you who dont know, the 366T and 427T were put into GM's Medium duty trucks. Big on tq. and built tough.
Scott
2012 Chevy Tahoe
2007 Yukon Denali
2003 Corvette 50th
2002 Chevy 2500HD
1969 Impala 396
1955 Chevy Pickup 427 450HP
1969 Camaro z28




 
Vaughn 
"12th Year" Gold Supporting Member
Posts: 15264

Loc: Colorado Springs, CO
Reg: 08-08-04
08-27-09 08:18 PM - Post#1761717    
    In response to Chevyguy04

Only problem you may have is an interference between the brake booster and the valve cover.

If you plan to make it TBI, you need to use a big block TBI ECU.

 
Chevyguy04 
Member
Posts: 213

Reg: 05-23-05
08-30-09 05:58 PM - Post#1763398    
    In response to Vaughn

In your opinion, should I keep it TBI or put a carb on it??
Scott
2012 Chevy Tahoe
2007 Yukon Denali
2003 Corvette 50th
2002 Chevy 2500HD
1969 Impala 396
1955 Chevy Pickup 427 450HP
1969 Camaro z28




 
Vaughn 
"12th Year" Gold Supporting Member
Posts: 15264

Loc: Colorado Springs, CO
Reg: 08-08-04
08-30-09 06:48 PM - Post#1763443    
    In response to Chevyguy04

If you want minimum cost and minimal maintenance, go with the TBI. Converting to carb will just cost you money.

 
Bill K.b 
Senior Member
Posts: 4197

Loc: upstate NY
Reg: 10-24-05
08-31-09 02:45 AM - Post#1763599    
    In response to Vaughn

I suppose that depends a little on what the '87 truck is set up for now, though, too. I have to think an iron intake for a carb would be about free for one, and you'd need a distributor and a carb for it to run that way. If the '87 is not a TBI truck, then you'd have to swap a TBI harness and computer into it. Which also might not be too expensive if you can find a donor, but a lot more work I suspect.
Those who can, do. Those who can't, criticize it on the internet.

1988 G20 van 5.7L - driver.
1993 3500 dually 5.7L NV4500 - tow truck
1991 G20 van - parts truck

Plus cars for swap and sale
&yes, I once tried a frame swap on a 51 Chevy.


 
Chevyguy04 
Member
Posts: 213

Reg: 05-23-05
08-31-09 05:46 PM - Post#1764031    
    In response to Bill K.b

The truck is a TBI 350 truck, and I have an intake and carb that I can put on the motor. My only concern is being able to find a big block computer, and being able to adapt the big block into the smallblock truck. Havent worked with fuel injection before on any projects, so I feel like I am in uncharted waters.
Scott
2012 Chevy Tahoe
2007 Yukon Denali
2003 Corvette 50th
2002 Chevy 2500HD
1969 Impala 396
1955 Chevy Pickup 427 450HP
1969 Camaro z28




 
Vaughn 
"12th Year" Gold Supporting Member
Posts: 15264

Loc: Colorado Springs, CO
Reg: 08-08-04
08-31-09 07:15 PM - Post#1764077    
    In response to Chevyguy04

The difference is minimal, as far as I know (maybe Chevytech could say for an absolute certainty). The wiring is the same, so is the fuel supply and return. If you already have the 366 TBI unit (it sounded like you did) you don't have to go find another big block TBI unit - just replace the computer with the big block unit and you should be good to go. You don't have to change the electric fuel pumps in the tanks or anything.

 
100 CHEVY 
Dedicated Enthusiast
Posts: 5616
100 CHEVY
Loc: Helena,Missippi,U.S.A.
Reg: 12-09-04
08-31-09 08:11 PM - Post#1764123    
    In response to Chevyguy04

I have 82-4x4 truck with a 454 in it.
I also have a 427 td.
You're gonna have problems with the exhaust hitting the frame.Because the heads are higher,it puts the exhaust manifolds farther out.Unless you can find headers for the td to fit your truck.Will be very close to the firewall also.
And do you realize what it costs to build a tall deck engine?
Why mines still sitting on the floor!
Mike.
"You gonna leave it like that?
http://www.picturetrail.com/100chevy


 
BBC-454 
Senior Member
Posts: 1400
BBC-454
Loc: Edmonton, Alberta
Reg: 05-11-03
08-31-09 08:16 PM - Post#1764128    
    In response to 100 CHEVY

Dont they only rev out to like 3500 rpms? 3 ring pistons also
Josh R.L.
Licensed Automotive Mechanic
1966 Buick Special 2 door
1961 Chevrolet Apache 10 panel van
1995 GMC K2500
2011 VW Jetta TDI


 
100 CHEVY 
Dedicated Enthusiast
Posts: 5616
100 CHEVY
Loc: Helena,Missippi,U.S.A.
Reg: 12-09-04
08-31-09 08:40 PM - Post#1764156    
    In response to BBC-454

They're designed strictly for low-geared torque.
The snails of the big blocks!
I also have a 351 GMC engine-same deal,big,heavy and slow!
Mike.
"You gonna leave it like that?
http://www.picturetrail.com/100chevy


 
fritz1990 
Senior Member
Posts: 6397
fritz1990
Age: 52
Loc: Kansas
Reg: 02-16-03
09-01-09 07:52 PM - Post#1764779    
    In response to BBC-454

  • SBC283 Said:
Dont they only rev out to like 3500 rpms? 3 ring pistons also



Actually there are 4 sets of rings including the oil ring pack.

1st, 2nd, 3rd, oil ring = 4

A 351 GMC, you could build a nice BBC for what it takes to work on those.

Regards, Jeff
1998 K1500 6.5 Coal burner
1965 C10 with 498 BBC AFR Heads
1964 C10 Ran 348W for 6 years, now SBC.

Corvettes owned: '74 '77 '78 L82 Silver Anniversary, 2002 LS1

Don't have a nervous come together!

http://picasaweb.google.com/fritz199090


Edited by fritz1990 on 09-01-09 07:54 PM. Reason for edit: No reason given.

 
Chevyguy04 
Member
Posts: 213

Reg: 05-23-05
09-02-09 07:21 AM - Post#1764944    
    In response to fritz1990

Tall decks only rev to 3500 - 4000 because some are governed and some are restricted by the heads. Like I said the 366 is temp, figured it should run fine for now, Im not looking to make this truck a hot rod, Ive already got cars for that. I am looking at making the 427 td into a stroker with a either a 454 (4.00) or a 4.25 crank, and bore it 0.60. Not sure yet, it might be used for a different project thats in the pipeline.

Does anyone know ratings for the TBI 366 TD (HP Torque)? The one I have is 1991.

I heard from someone that had an old dump truck from the early 80's his had 240hp and 380 lb ft. I dont know if thats accurate or not.
Scott
2012 Chevy Tahoe
2007 Yukon Denali
2003 Corvette 50th
2002 Chevy 2500HD
1969 Impala 396
1955 Chevy Pickup 427 450HP
1969 Camaro z28




 
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

6701 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.764 seconds.   Total Queries: 13   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 04:51 AM
Top