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Username Post: Selecting a stock-ish in-tank pump
cloudmaster 
Senior Member
Posts: 1008
cloudmaster
Loc: Arrowsmith, IL
Reg: 01-30-02
06-04-18 11:58 AM - Post#2735905    

So, I have a factory '87 Chevy truck sender in an '87 tank feeding the (TBI Holley HP EFI) 454 in my '85 C20. When I set this up the first time a couple of years ago, a faulty valve spring broke during idle tuning, leading to catastrophic failure. I just got the engine back together and installed, but then yesterday when I went to start it for the "second first time", the fuel pump has died.

Thinking about it, that Spectre "stock TBI 350" pump probably isn't enough to feed a 550-ish HP big block anyway. When looking at more appropriate replacement pumps, though, everyone either suggests a "Walboro 255" or maybe an "Aeromotive 340". But there are half a dozen 255Lph Walboro pumps - some of which aren't even in-tank models, and Aeromotive must have used a time machine to find the web developer responsible for their web site. :D

I assume the Walboro everyone is talking about is the GSS342, but it doesn't sound like it's super reliable. I'm guessing Aeromotive is either the 11540 or 11541, but again, not positive (though I do have better feelings about Aeromotive overall). I really just want something that will fit the stock hanger without me having to fabricate much beyond the electrical connector, and one that might actually last. Can someone point me in the right direction?
'71 Malibu: 350/200-4R/3.73 Eaton posi
'75 Elky: 350HO/TH350/3.42 peg leg
'85 C20: EFI454/TH400/3.73 locker
'95 Caprice Wagon: LT1/4L60E/3.42 posi
'04 Grand Marquis: 2V4.6/3" pipes/SCT flash

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