Kent, The rep from Coolflex swears up and down it's 2" as well. I probably have the exception to the rule but...I just replaced my radiator with an aluminum unit. The current lower hose is a flex hose. Thinking I'd have to get a longer one I didn't pay attention to which end went where when I removed it. Testing for length after the installation I found it would still work. Then I thought, did I just get lucky with the two ends so I turned the hose around and it still fit. I then measured the O.D. of the lower hose outlet on the water pump and it matched the input on the radiator. Both will take the 1 3/4" hose size. Granted the pump is nearly 15 years old and I purchased it from Summit simply as a chrome replacement, but it's apparently not the same as other big block water pumps. Looks like something I'll have to remember if/when the pump needs replacement - get a new hose at the same time :)
Dale McIntosh ACES #1709/TC #92 Gold 67 SS/67 Elky http://www.dalesplace.com http://www.team67.com http://www.midwestchevelles.com > Subject: Re: [Chevelle-List] Water pump hose size for BBC > > > Dale, > > Just checked my engine. It measures 2" at the waterpump > outlet. This is > an aluminum GM "short" pump that is included with the ZZ502/502 > kit. Also, > the reproduction radiator hoses that I plan to install have the > 2" id at the > waterpump and 1 3/4" at the lower radiator. Do not have any other > waterpumps to check the measurement. > > > Just as a suggestion - "...Have you changed the batteries in your tape > measure lately ?..." :) > > Kent > '68 Malibu ZZ502/502 > ACES #5102 > > > This may sound like a silly question, but what is the standard hose size > (I.D.) for a BBC water pump? A rep from Cool Flex said that > every big block > (not just Chevy) the he's seen has a 2" I.D. hose outlet. On their site, > when ordering a lower hose kit and checking the Big Block box, they come > back with a 1 3/4" on one end and a 2" reducer on the other. I just > replaced the radiator in my 67 big block car and double checked the lower > hose and it's 1 3/4" on both ends. I'm using a Summit (long) water pump > that I've had for close to 15 years now...have they changed or do > I have an > odd pump? > > Dale McIntosh > ACES #1709/TC #92 Gold > 67 SS/67 Elky > http://www.dalesplace.com > http://www.team67.com > http://www.midwestchevelles.com > > > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] > ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
