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10-30-2002, 02:25 PM
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#1 |
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Registered User
Join Date: Jan 2000
Location: Bend, Oregon
Posts: 127
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Is 91 Suburban 5.7 have TPI or TBI or...? + LT-1 question
Anyone know off hand what type of fuel system is stock on a 91 4x4 3/4T Suburban?
there is one up for auction but I don't want to drive across the state unless it has a TPI. Also, I have heard that 94-95 Caprice police cars have LT-1's. Can anyone confirm this? Do they all have the LT-1? thanks, Steve
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Galoolie |
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10-30-2002, 02:37 PM
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#2 |
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Ain't we cute?
Join Date: May 2002
Location: Friendswood, TX
Posts: 700
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I am 99% certain that 91 burb has TBI. It's a very reliable setup if that's what you're worried about. I don't THINK (M)PFI was standard until 96 with the Vortec setup. Anyone for sure on this one?
I am 99% certain that all the 9C1s of those years (and 96 too) have the LT1. www.9c1.com has great info and all you could want, I bet
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69 C10 2WD LWB Fleet 350/350 power front disc conversion (6 lug disc kit from gmcpauls) and new engine, PS, A/C, fresh fluids, SHE DRIVES! FOR SALE $3900 
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10-30-2002, 02:43 PM
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#3 |
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Registered User
Join Date: May 2001
Location: Davisburg, MI. USA
Posts: 124
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FI MOTORS
the 91' BURB WILL HAVE A TBI MOTOR IN IT. THE PORT FUEL INJECTION (TPI) WAS ONLY AVAILABLE IN CARS (F-CAR AND Y-CAR)(88-92,91-VETTE) THE CAPRICES WERE TBI TILL 94' WHEN THE LT-1'S WERE PHASED IN. BUT BE CAREFUL THERE ARE TWO MOTORS FOR THE 94-96 CAPRICES A 4.3 200HP V-8 AND THE 5.7 260HP V-8 (BOTH ARE IRON HEADED MOTORS THE 5.7'S HAD FULL DUAL EXHAUST, THE 4.3 HAD SINGLE OUTLET. THE COP AND FLEET MOTORS HAD ELECTRIC COOLING FANS, THE PASS CARS HAD ENGINE DRIVEN FANS.
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Jim Davisburg, MI 69 Camaro SS LT-1/6-spd 71 C-20custom deluxe burb 402/400 (gonna get back to it) 72 C-10base burb 350/3-spd 79-VW Scirocco GT-3 race car 2.0L/5-spd 02 chevy suburban LT Supercharged dropped on 22's |
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10-30-2002, 02:44 PM
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#4 |
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Registered User
Join Date: May 2001
Location: Davisburg, MI. USA
Posts: 124
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OH, YEAH THE TRUCKS GOT PORT FI IN 96 WITH THE VORTEC MOTORS 5.7L 250 HP.
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Jim Davisburg, MI 69 Camaro SS LT-1/6-spd 71 C-20custom deluxe burb 402/400 (gonna get back to it) 72 C-10base burb 350/3-spd 79-VW Scirocco GT-3 race car 2.0L/5-spd 02 chevy suburban LT Supercharged dropped on 22's |
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10-30-2002, 08:03 PM
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#5 |
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Registered User
Join Date: Jan 2000
Location: Bend, Oregon
Posts: 127
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Great info, thanks.
Steve
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Galoolie |
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10-30-2002, 11:31 PM
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#6 |
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Registered User
Join Date: Jun 2002
Location: Lafayette, LA
Posts: 500
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If you are going to pursue a FI motor, be sure and get everthing you can out of the donor vehicle...computer, wiring harness, Diagnostics port, radiator, electric fans, all sensors, etc. I got most of this stuff out of a 94 camaro, and the radiator and condensing coils fit pretty darn nicely...only minor modifications. The cooling hoses fit pretty well too. Fans hang off the back of the radiator on brackets.
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69 SWB LT1/4L60E www.classicplace.com |
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