Fuel Pressure, Line Sizes
August 10th, 2009 | 02:57 PM
#1
Thread Starter
Arrrggggg
Joined: Jul 2009
Posts: 322
From: Indianapolis
Fuel Pressure, Line Sizes
How much Fuel Pressure does a 1970 Cutlass have?
350 4BBL motor.
Reason I ask is, the fuel pump on my 69 has 5 - 7 1/2 PSI but for some reason, when I went to replace mine, the new one has a 5/16th Fitting that goes from pump to carb, where as the old one that was on the motor has a 3/8th's fitting. Seems the new 68 and 69 both have a 5/16th Pump to Carb fitting at the pump from my investigating.
I was curious if the 70 replacement pump (Which does have the 3/8ths line fitting) pushes the same amount as the 69 which is 5 - 7. Didn't know if I could use this pump or what. Trying to find a 5/16th fitting to use on this new pump is almost impossible at the 20 places I've been to and the few online stores I've called don't have it either.
350 4BBL motor.
Reason I ask is, the fuel pump on my 69 has 5 - 7 1/2 PSI but for some reason, when I went to replace mine, the new one has a 5/16th Fitting that goes from pump to carb, where as the old one that was on the motor has a 3/8th's fitting. Seems the new 68 and 69 both have a 5/16th Pump to Carb fitting at the pump from my investigating.
I was curious if the 70 replacement pump (Which does have the 3/8ths line fitting) pushes the same amount as the 69 which is 5 - 7. Didn't know if I could use this pump or what. Trying to find a 5/16th fitting to use on this new pump is almost impossible at the 20 places I've been to and the few online stores I've called don't have it either.
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