Straight water pump fitting

[Irby G.]

Does the original '63 fitting on the 340 have 2 notches on each shoulder or one?
Thanks in advance. Aloha.
Irby

[Irby G.]

Re: Straight water pump fitting

BTTT for one more try.

[Joel T.]

Re: Straight water pump fitting

Irby;

I have a repro fitting on my '63/340.. will that help you??

Joel

[Irby G.]

Re: Straight water pump fitting

Thanks Joel,
Not sure. Trying if get an answer on exactly what the original fitting had (either one notch per shoulder or two). I can get either one, I just want to match what I originally had. Do you know if yours is an exact match to what was original on there?
Irby

[Wayne M.]

Re: Straight water pump fitting

.....Trying if get an answer on exactly what the original fitting had (either one notch per shoulder or two). I can get either one, I just want to match what I originally had.

OK you guys; I have to know how this is going to turn out (from a '65 perspective). I assume you're asking about the waterpump nipple that connects to heater/expansion tank (first pic). This is on a donated replacement water pump that was on a '64 or '65 non-C60 car. The hex is 7/8" across the flats and also 7/8" along the flat [as the '65 TIM&JG says]. No mention of notches on shoulder, but this could be a '63-4 thing.

Quick check of repop catalogs claims same nipple for all C2 years and again no mention of notches. Could someone post a pic with notches ?

2nd item (slightly off-topic, but in same general area, and off the same pump). Anyone seen a top bypass fitting (hi-horse small blocks) with the upside down capital 'P' in the diamonds ? (or maybe it's an upright lowercase 'd' ). However, the '65 TIM&JG states "known original fittings have logos on one or both sides. One side has a series of diamonds connected vertically. The opposite side may have a logo with letters "CP" inscribed within a diamond and a circle, which repeats vertically" Mine only has the vertical inscriptions on one face.

So is this an acceptable bypass fitting for '64 and or '65 ?

[Joe L.]

Re: Straight water pump fitting

OK you guys; I have to know how this is going to turn out (from a '65 perspective). I assume you're asking about the waterpump nipple that connects to heater/expansion tank (first pic). This is on a donated replacement water pump that was on a '64 or '65 non-C60 car. The hex is 7/8" across the flats and also 7/8" along the flat [as the '65 TIM&JG says]. No mention of notches on shoulder, but this could be a '63-4 thing.

Quick check of repop catalogs claims same nipple for all C2 years and again no mention of notches. Could someone post a pic with notches ?

2nd item (slightly off-topic, but in same general area, and off the same pump). Anyone seen a top bypass fitting (hi-horse small blocks) with the upside down capital 'P' in the diamonds ? (or maybe it's an upright lowercase 'd' ). However, the '65 TIM&JG states "known original fittings have logos on one or both sides. One side has a series of diamonds connected vertically. The opposite side may have a logo with letters "CP" inscribed within a diamond and a circle, which repeats vertically" Mine only has the vertical inscriptions on one face.

So is this an acceptable bypass fitting for '64 and or '65 ?

Wayne----


I believe it's a "P" and I believe it represents the manufacturer, Parker-Hannifin Corporation. They have supplied such fittings to GM for years and they are still very much in business.

[Dale S.]

Re: Straight water pump fitting

P-H also markets thur the Edlemann brand, brass fittings, power steering hoses ETC. At least thur 1995 when I sold my store. Dale