? about C/C Dually with 350sbc - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1986Silverado · 10-30-2004, 01:05 PM

This C/C I am looking at has a 350sbc in it. Wondering when GM started the serpentine belt system on these trucks? This one does not have it. Also any problem spots to look for on a '90 model dually? Thanks
I know this is not an 73-87 but I posted this on the 88-98 board and only 1 response.

Prerunner1982 · 10-30-2004, 01:52 PM

actually, if it is a 1 ton it is still our body style and would fit better here than over in the 88+ board. i would figure in 90 that it should have the serpentine belt, are you sure the engine is stock for the truck? i am sure the "ol timers" will have a more precise answer... sorry..

cliffsta · 10-30-2004, 03:19 PM

I'm guessing its a 1 ton dually? Is it carbureted or feul injected? If its carbureted, that 350 is gonna chug to push all that weight, even a TBI 350 still might be a bit on the small side for that big of a vehicle. Best motor for a dually is a 6.2 diesel or a 454 Big Block. Look for the normal rocker rot beneath the doors. Also check the fenders, but they shouldnt be too bad considering the relatively young age of the truck as compared to, say, an 80 model with rocker cancer......^^^^

79Silv4x4 · 10-30-2004, 08:29 PM

Quote:

Originally Posted by 1986Silverado

This C/C I am looking at has a 350sbc in it. Wondering when GM started the serpentine belt system on these trucks? This one does not have it. Also any problem spots to look for on a '90 model dually? Thanks
I know this is not an 73-87 but I posted this on the 88-98 board and only 1 response.

It came from the factory with a serpentine belt system.

1986Silverado · 10-30-2004, 11:23 PM

It is a 1ton dually...and fuel injected. Cliffsta, the fuel mileage has got to be better with the 350 than a 454

It would be used for light towing (16ft ski boat, small travel trailer)right now. It does have one small spot of rust below the r/r door on the rocker, 'bout the size of a dime. Well it does have a newer (87+)350, well at least the heads are because it has the center bolt valve covers. I thought maybe the serpentine system started in '91. I had a '91 S-10 blazer and it had the single belt, had a '90 S-10 pick-up(both had 4.3 L engines)and it had the v groove belts?

10-30-2004, 01:05 PM	#1
1986Silverado What I drive Join Date: Apr 2004 Location: Star, MS Posts: 418	? about C/C Dually with 350sbc This C/C I am looking at has a 350sbc in it. Wondering when GM started the serpentine belt system on these trucks? This one does not have it. Also any problem spots to look for on a '90 model dually? Thanks I know this is not an 73-87 but I posted this on the 88-98 board and only 1 response. __________________ 1986 Chevy Crew Cab Dually(Choo-Choo Conversion) 2006 Chevy Equinox

10-30-2004, 01:52 PM	#2
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	actually, if it is a 1 ton it is still our body style and would fit better here than over in the 88+ board. i would figure in 90 that it should have the serpentine belt, are you sure the engine is stock for the truck? i am sure the "ol timers" will have a more precise answer... sorry.. Last edited by Prerunner1982; 10-30-2004 at 05:43 PM.

10-30-2004, 03:19 PM	#3
cliffsta Stepsides RULE Join Date: Jul 2004 Location: Pineville, LA Posts: 1,921	I'm guessing its a 1 ton dually? Is it carbureted or feul injected? If its carbureted, that 350 is gonna chug to push all that weight, even a TBI 350 still might be a bit on the small side for that big of a vehicle. Best motor for a dually is a 6.2 diesel or a 454 Big Block. Look for the normal rocker rot beneath the doors. Also check the fenders, but they shouldnt be too bad considering the relatively young age of the truck as compared to, say, an 80 model with rocker cancer......^^^^ __________________ 1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord

10-30-2004, 11:23 PM	#5
1986Silverado What I drive Join Date: Apr 2004 Location: Star, MS Posts: 418	It is a 1ton dually...and fuel injected. Cliffsta, the fuel mileage has got to be better with the 350 than a 454 It would be used for light towing (16ft ski boat, small travel trailer)right now. It does have one small spot of rust below the r/r door on the rocker, 'bout the size of a dime. Well it does have a newer (87+)350, well at least the heads are because it has the center bolt valve covers. I thought maybe the serpentine system started in '91. I had a '91 S-10 blazer and it had the single belt, had a '90 S-10 pick-up(both had 4.3 L engines)and it had the v groove belts? __________________ 1986 Chevy Crew Cab Dually(Choo-Choo Conversion) 2006 Chevy Equinox



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