Fuel pump question - Page 2

DSYenko · #11 07-23-2005, 07:06 AM

Hate to drag this on and on but this pump does not have the return line correct??

Chevy454 · #12 07-23-2005, 07:20 AM

I looked again, and I'm not sure that's the right link...call 'em up, and tell 'em you want the pump for a '69 L78, which will NOT have a return...they also list a repro pump for a ZL1, and have a picture of it, so you could go that route if you wanted...

DSYenko · #13 07-24-2005, 06:29 AM

Thanks again

rat tuned · #14 07-25-2005, 12:15 AM

the chevrolet heavy duty parts list has the following part listed as a high capacity fuel pump. has anyone used this part #

http://www.sdpc2000.com/catalog/1037...-Fuel-Pump.htm

what is the difference between this number and the stock AC or high performance L-88 ZL-1 or any of the 375 hp pumps?
mike

JoeG · #15 07-25-2005, 01:22 AM

The pressure range of this pump and the L72, L78 ETC.should be the same- --You can rotate this one though to fit application---------------

rat tuned · #16 07-25-2005, 02:26 AM

joe,
did you look at the picture of the pump? i'm curious how you would rotate the pump? is the picture not what the actual part# looks like? it is part#6415748. i'm curious if anyone has actually used that pump. what would the actual fuel pressure be with the engine warmed up? how mant gph? i got the number out of the "how to hot rod big block chevies" it is an older publication. thanx again mike

rat tuned · #17 07-25-2005, 02:34 AM

mr ds yenko,
you might want to check out this thread

https://www.yenko.net/ubbthreads/showflat...=true#Post94010

JoeG · #18 07-25-2005, 02:59 AM

I just looked up that part # 6415748 in a Chev. Power catalog---And it states---This high-capcity pump has a removable lower housing which can be rotated to position the inlet and outlet fittings as required by the chassis and engine installation--------------

**Mr70** · #19 07-25-2005, 05:35 AM

I don't know if this helps,but I have the Stock AC #40727 Fuel Pump on my L-78 Chevelle,which resembles the one you show.
It recently tested out at 5-8&1/2 PSI @450-1000RPM.
Volume was 1 pint 30-45 sec. @ 700 RPM.

DSYenko · #20 07-25-2005, 07:53 AM

It's amazing how much thought and effort it takes just to decide what fuel pump i need to order!This is about as hard as ordering a cam!

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