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Flex hoses for TBI's
Saw where someone wanted to add flex hoses to a TBI.
Here is some info that might help.
Late 80's P/U's came stock with SS braided lines.
I bought a couple of sets from the local Chevy Dlr.
at less than $70 a set for P/N 1556-7762, Hose Assy.
May seem to be HI$ until you see what you get.
This P/N includes two SS flex hoses clamped together
with a small clip /mount (easily removed)
Smaller hose is about 48 in long, Female 5/16 Saginaw (14mm x 1.5)
on one end and short piece of tubing on other end,
bent just over 90 degrees to connect at TBI. The tube end is
5/16 Saginaw Male and goes right into fitting on TBI for return.
Larger hose is about 60 in long, Male 3/8 Saginaw (16mm x 1.5)
on both ends. Also connects right to the fitting on the TBI and the other
connects right into a Chevy P/U fuel filter making the supply.
SIMPLE INSTL. AND SAVES ON FINDING/FITTING LOTS OF ADAPTERS!
FOLLOWING is the "Fuel" list that one of the DIY-EFI guys assembled.
(sorry about not being able to give credit more accurately-
can anyone identify source?)
Fuel injection feed and return nut kit GM 1711798
thread sizes are 14mm X 1.5 and 16mm X 1.5
Connector, fuel feed, double female lines GM 15544805
connects two male 3/8" Saginaw ends
Connector, fuel return, double female lines GM 15550219
connects two male 5/16" Saginaw ends
Short sections of line, approx2", with metric/quick connect
Pressure: GM#15694407 $10.55 list
15609225 short, straight $2.55
15609224 short, u shaped $3.25
These fittings can easily be used with rubber line by using the quick
connect side as a barb. Be sure to use quality clamps and hose rated for
GM Stainless steel braided hose, feed and return
15567762 approx. 30"long $72 list
This line is used on '88 and '89 pickups.
Looks nice and it's flexible, but spendy.
22527471 fuel feed, 1 male X 1 female 3/8" ID
22528623 fuel return 1male X 1 male 5/16" ID
10114736 return hose female X female 5/16" ID
10114709 feed hose female X female 3/8" ID
These are hoses which connect between the tank and the lines.
There are many different versions available, and they are all model
22514722 fuel feed -- 22516256 fuel ret.
25055052 or GF 481 (AC) standard efi filter
25055003 or GF 478 (AC) 1983 Camaro with Crossfire (5.0 "S"engine)
barbed hose end on inlet and 3/8 inv. flare on outlet
GF626 has same fittings as GF481, is stainless steel (not
polished), and costs less! Fits 1995 Chevy pickup.
MV0603400: fuel feed m16X1.5 to 3/8" inv. flare $16.50
MV0603304: fuel ret. metric14X1.5 to 5/16" inv. flare $15.04
Available through Snap On Dealer
Motorvac Tech Support (800) 841-8810
3/8" inverted flare to 14 X 1.5mm 1445
3/8" inverted flare to 16 X 1.5mm 1446
3/8" inverted flare to 18 X 1.5mm 1447
(ADDED NOTE: Poor machining on Saginaw end -
works on some applications/have to machine to fit on others.
991954 14mm X 1.5 (return line)
991955 16mm X 1.5 (pressure line)
991956 18mm X 1.5 (power steering line)
ACCEL Saginaw parts:
"The kit consists of three 12" long, 3/8" diameter steel tubes and one 12"
long, 5/16" diameter steel tube with the Saginaw flare used in stock GM fuel
injection systems. It allows direct connection to TPI fuel rails and a high
pressure fuel filter." (one end has Saginaw fitting, other end is
Jumper Line Kit:74731
3/8" Jumper Line Only:74731-A
5/16" Jumper Line Only:74731-B
HOSE BARB FITTING:
3/8 Saginaw/Hose Barb Fitting (2 ea): 74720-A (for both sides of a high
pressure fuel filter, e.g. ACGF481)
FUEL LINE FITTINGS:
"High quality aluminum fittings provide perfect fit to adapt GM fuel rails
(Saginaw) or high pressure fuel filters with Saginaw flares to AN-type
Fuel Filter Fitting Kit: 3/8 Saginaw to 6AN (2 ea):74721
TPI Fuel Rail Fitting Kit: 3/8 Saginaw to 6AN (1 ea), 5/16
Saginaw to AN (1 ea): 74730
HIGH FLOW FUEL FILTER & PUMP FITTINGS:
"Anodized in a rich gold, these fittings allow the highestflowrate of any
Saginaw fitting available. Complete with O-rings, these fittings now accept
#8AN fuel line."
High Flow Fuel Filter Fitting: 74743-H / High Flow Fuel Pump Fitting:
74711-H Fuel Filter with 3/8 Saginaw provisions:
74720 (like GF481) These fittings adapt to a -6 AN line.
FROM GMECM list:
Finally found a local shop which stocks the whole Aeroquip line, not just
the metal-braid race stuff. Not sure if anyone needs this info , but
here's pn's for what I used for going from frame-rail steel fuel line to
the fuel rail. This is push-on rubber hose, no crimping rings or
compression fittings needed. Rated for 300 psi. Fittings are brass. Also
available in -8 and -10.
Hose, -6, Aeroquip PN 2556-6
- -6 Hose to Male 3/8" inverted flare fitting PN 4740-6
- -6 Hose to Female 3/8" inverted flare fitting PN 4743-6
This is great stuff, and cheap too - hose $2.50/ft, fittings $3.25 each.
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