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#1
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fuel pump
Sorry for the stupid post, i bought a pump few years back, was supposed to only have 4-5 lbs fuel pressure for my tripower, of course i cant find any paperwork on it............so what are you guys using for a 66 with tripower for the fuel pump.
Brand and numbers would be great. If it helps any, i heard you could have 3/8 hole on the mounting holes, mine are 5/16 Rich |
#2
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Some timing cover have 3/8 and some 5/16. If pump has 3/8 it will work on either.
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#3
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Thanks Goatracer...........i double checked mine i have the 5/16 holes, was looking at the delco 40373........seems backordered most places, the other one is a carter M 4507.....as i said i cant remember what i have, but its at least 7-8 yrs old, thought since everything else is new, might as well get that.
Rich |
#4
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Rock Auto has the Carter for $16.40. if you are interested discount code of : 229357924208978840 is good until May 19, 2023.
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#5
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I purchased the Carter M4507 for my 66 389 with AFB. Installed and used to break in engine on run stand, but no actual street use at this time.
__________________
Fort Worth/Dallas TX area 1966 GTO Fontaine Blue 389 CID Carter AFB Muncie 4 speed (orginally an automatic car) |
#6
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Quote:
Rich |
#7
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For what it's worth......
The Carter M4507 pump is rated at 6 to 6.5 psi, some folks would say a bit high for tri power set-ups. |
#8
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Quote:
Rich |
#9
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NOS GM... https://www.ebay.com/itm/314535520762
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#10
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If it's NOS the diaphragm will be old and possibly dried out. Also it won't be compatible with today's gasoline with alcohol in it.
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#11
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I have my tripower at 3.5 psi.
I use a regulator I bought at PontiacTripower.com https://pontiactripower.com/products...431642e8&_ss=r
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1965 Pontiac GTO 455/469 w/ #48 Heads, '65 Tri-Power 9.25:1 CR Stump Puller Cam Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00 3.55 Rear Differential Front: 225/60R15 Height: 25.6" Rear: 275/60R15 Height: 28" |
#12
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I've been using NOS pumps for years without any issues. I would much rather take my chances with NOS over the new crap they're selling today. And you'll know the pressure is correct, problem solved.
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#13
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You know nothing about a 50 year old pump until it fills your crankcase with gas.
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#14
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Quote:
Ran perfect then and still runs perfect. I have another boxed 40373 on the shelf, as you can’t beat an OEM part. Just sayin.
__________________
1) 65 GTO Survivor. 43,440 Original Miles. “Factory” Mayfair Maize Paint with Black Pinstripe, Black Cordova Top, Black Interior, OEM Numbers Matching Powertrain. Purchased from the Lady that bought it new. Baltimore Built (11A). 2) 66 GTO Survivor. “Factory” Cameo Ivory Paint with Red Pinstripe, Red Interior. OEM Numbers Matching Powertrain. Tri-Power (OEM Vacuum Linkage), Automatic "YR" code (1759 Produced). Fremont Built (01B), with the Rare 614 Option. |
#15
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A fuel pump that old was NOT designed for today's alcohol diluted fuel so even if it's parts were still good when you installed it they will fail.
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#16
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If you use an old NOS pump make sure your insurance is up to date.
I would run a pressure test after installing any fuel pump.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress. |
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