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Username Post: specs on a 1989 350 sb tbi        (Topic#214840)
clark31 
Forum Newbie
Posts: 80

Loc: Mesa, Arizona
Reg: 04-15-09
04-17-09 04:57 PM - Post#1678838    

I wanted to find out how much horsepower and torque my 89 suburban has. I have the 350 small block tbi and also what tranny do I have? is it the 400r 4 speed? Im new to v8's and have no clue. also is it possible to put a vortech head on and what kind of difference will it make? and what years, make, and models can I get that out of? thanks for your help
1989 Chevy Suburban 2wd r1500 with 5.7L 350sb tbi and 700r4 (mods) are 'Headman' long tube headers,3" y-pipe, magnaflo high flow cat and super 44 flowmaster
2005 GMC Yukon Denali XL


 
clark31 
Forum Newbie
Posts: 80

Loc: Mesa, Arizona
Reg: 04-15-09
04-17-09 04:58 PM - Post#1678839    
    In response to clark31

  • clark31 Said:
I wanted to find out how much horsepower and torque my 89 suburban has. I have the 350 small block tbi and also what tranny do I have? is it the 400r 4 speed? Im new to v8's and have no clue. also is it possible to put a vortech head on and what kind of difference will it make? and what years, make, and models can I get that out of? thanks for your help


its the r1500 2wd
1989 Chevy Suburban 2wd r1500 with 5.7L 350sb tbi and 700r4 (mods) are 'Headman' long tube headers,3" y-pipe, magnaflo high flow cat and super 44 flowmaster
2005 GMC Yukon Denali XL


 
Bill K.b 
Senior Member
Posts: 4196

Loc: upstate NY
Reg: 10-24-05
04-18-09 05:22 AM - Post#1679223    
    In response to clark31

Most of them were built with a 700R4 overdrive trans, but a THM-400 could be had too. And occasionally a manual trans Suburban turns up.

1989 5.7L there were two options: VIN code A was 190 HP at 4000 RPM and 300 ft-lb at 2400 RPM; and VIN code K was 210 HP at 4000 RPM and the same torque at 2800 RPM. The eighth symbol in the VIN is the engine code.

I wouldn't mess with the motor much, both of mine have had plenty of power to tow things and will motor down the highway at 80 MPH no problem; they're not meant to be race cars, it's just a truck with a station wagon body on it.
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.


 
clark31 
Forum Newbie
Posts: 80

Loc: Mesa, Arizona
Reg: 04-15-09
04-18-09 09:26 PM - Post#1679777    
    In response to Bill K.b

Thank you for your help Bill


Ih and sorry, I just noticed im in the wrong section
1989 Chevy Suburban 2wd r1500 with 5.7L 350sb tbi and 700r4 (mods) are 'Headman' long tube headers,3" y-pipe, magnaflo high flow cat and super 44 flowmaster
2005 GMC Yukon Denali XL


 
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