C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

sub for LT-1 fuel pump

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Old Aug 18, 2011 | 11:23 AM
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Default sub for LT-1 fuel pump

I been told that you can use a fuel pump from a '93 Suburban on my '93 Vette.It suppose to be a direct replacement at less cost.Can anybody confirm this?
Keep waving,Ray
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Old Aug 18, 2011 | 01:35 PM
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Why?? Just order the kit from Racetronix. Its inexpensive enough, uses a quality pump and includes everything you need to change the pump.

If the Suburban pump is a replacement you still need a gasket, probably new bolts, etc.
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Old Aug 18, 2011 | 02:28 PM
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I'd be really surprized if it would work. The suburban of that vintage was still TBI as far ask I know and worked on lower fuel pressure.

One way to find out for sure is check some of the auto parts websites (like rockauto) and cross reference the part numbers.
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Old Aug 18, 2011 | 02:32 PM
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even ebay sellers will have a chart showing applications

A TBI pump wont have the vol of the TPI pump. Pressure might be similar, but vol is what the engine wants at higher rpm.
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Old Aug 18, 2011 | 07:54 PM
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The tbi worked around 13 psi vs 39ish psi for the tpi. I believe they will both be capable of similar volumes.
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