Search results
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Header Gasket Part Numbers?
Hi, Re: 1990 350/5.7 TBI SC/SB Looking for part numbers for OEM exhaust manifold gaskets (i fear they are discontinued) And... Part Numbers for Remflex & Percy's Seal 4 Good Header gaskets for same vehicle. Anything you got is appreciated... =-)- SuperSpore
- Thread
- Replies: 17
- Forum: Exhaust
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Smog pumps
Is there a way to identify OBS model years that came with a smog pump? i.e. by vin? If I buy a truck and it's not necessarily original, I'm trying to determine whether it will be smog legal in CA- SuperSpore
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- Replies: 5
- Forum: Engine Performance + Maintenance
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454 ss exhaust system
Anyone aware of an exhaust system for 1991-1993 454 ss? It's a true dual exhaust. Cat back system would be fine.- SuperSpore
- Thread
- Replies: 10
- Forum: Exhaust
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91 454 ss C1500
I'm looking for parts diagram for the throttle cable assembly and bracket, for a 454 ss, from where it comes out of the firewall and connects to the throttle body. Anyone have a link to something like that? I need to see the parts and how it's assembled correctly. Thank you- SuperSpore
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- Replies: 0
- Forum: Engine Performance + Maintenance
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Upgraded Fuel Pump for 1990 SCSB 5.7
I need to upgrade the fuel pump to something better. It's hard to start, and the fuel pump is due to go out. I did some research some time ago, some shops were recommending a 1996 vortec fuel pump ACDelco ep381, because it will increase LPH, and solve some issues. Will there be an difference on...- SuperSpore
- Thread
- Replies: 12
- Forum: Engine Performance + Maintenance
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Intermittent Low Oil Pressure
1990 Tbi 350. I experienced low oil pressure for ab0ut 30 minutes while driving. it dropped from the normal 30-40, to the first hash mark on the half moon gauge which seems to be about 15. At first I stopped, turned the truck off then on and the pressure returned to the normal 30 at idle for...- SuperSpore
- Thread
- Replies: 15
- Forum: Engine Performance + Maintenance
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EGR Causing Failure to Idle?
Hello, On a 91 c1500 7.4 Tbi - One day it just didn't want to idle. It kept dying. It had a previous miss or rough idle which I had chalked up to a bad plug wire connection, but nothing found. You have to keep mashing the throttle to keep it on. It has since thrown a 43 code (knock sensor...- SuperSpore
- Thread
- Replies: 13
- Forum: Engine Performance + Maintenance
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Fuel Pump Replaced - where'd I go wrong?
1991 Chevy c1500 short bed 7.4 with a 25 gallon tank. Suddenly Stopped idling properly, acting like starved for fuel, wanted to die. fuel pump fuse is good. Swapped the entire fuel pump assembly for a new delphi/ac delco. Pump does not prime, no start. There is no pump priming process for...- SuperSpore
- Thread
- Replies: 8
- Forum: Engine Performance + Maintenance
