water pump sizes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**ga-stepside** · 05-25-2018, 05:39 PM

I know there are long and short pumps for our trucks, 67-72 are supposed to have short pumps but my 67 has a long one...sort of. From research I concluded the long pump should measure 7" from the block to the pulley flange. Mine measures 6 3/4". Why? Did the PO leave something off when he installed the pump or do I just have a bastard pump?

BCOWANWHEELS · 05-26-2018, 08:16 PM

wrong pulley or odd pump, go look at reman and compare

**ga-stepside** · 05-26-2018, 08:35 PM

Quote:

Originally Posted by BCOWANWHEELS

wrong pulley or odd pump, go look at reman and compare

The 6 3/4" is from the engine block to the pulley flange without the pulley attached. I could go to the parts store and check another pump I guess.

05-25-2018, 05:39 PM	#1
ga-stepside Senior Member Join Date: Jan 2016 Location: Sugar Hill GA Posts: 368	water pump sizes I know there are long and short pumps for our trucks, 67-72 are supposed to have short pumps but my 67 has a long one...sort of. From research I concluded the long pump should measure 7" from the block to the pulley flange. Mine measures 6 3/4". Why? Did the PO leave something off when he installed the pump or do I just have a bastard pump? __________________ 1967 C10 Step side 1970 AMX 390 1977 Datsun 280Z highly modified with '95 LT1 power

05-26-2018, 08:16 PM	#2
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: water pump sizes wrong pulley or odd pump, go look at reman and compare __________________ I BELIEVE IN JOHN 3:16



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