Part # verification

[Hart_Rod]

I've searched high and low and can't find it. The number is 3942992BA. It is supposed to be a double groove pulled for a BB short water pump. Thanks in advance.

r/

[70rs/ss]

Probably need to find a dealer with the old paper catalogs, that number has been discontinued I'd guess. I found a Dealer who had the catalogs and was able to get me the part numbers for the 68-71 BBC motor mount #'s and the bigged U-bolts that hold the lower A arms on, once you get that info, they usually show any superceeded numbers after that.

The other place is called obsolete chevy parts (but they $$$ because of the obsolete name!)

[70rs/ss]

Does it look like this?? It says they are stamped with the OE number, but they use the OPG # as the part #, but the pict??


1964-72 Reproduction Big Block Crank Pulleys

These are exact reproductions of the factory original big-block pulleys. The 1965-68 units are 2 groove crank pulleys for special high performance applications, while the 1969-72 3 groove pulleys are for cars with air conditioning.



Part No. Description Year Unit Sale Promo Qty Buy
CH26704 (R) 2-groove 65-68 EACH $51.45 $46.45

[Hart_Rod]

Thanks for the information. I have the part, I just want to make sure I'm listing it correctly in the for sale section.

R/

[70rs/ss]

I was thinking that is what you were doing, I added a pict as you were responding look at the pict, if it looks like that then Yep it is.

[Hart_Rod]

Originally Posted by 70rs/ss

I was thinking that is what you were doing, I added a pict as you were responding look at the pict, if it looks like that then Yep it is.

Thats the crank pulley, do you have one of the water pump pulley?

[70rs/ss]

http://cgi.ebay.com/ebaymotors/Parts...m280228934851&



Well according to this ebay ad it is a 292 water pump pulley?? Check the link??

[Hart_Rod]

Originally Posted by 70rs/ss

http://cgi.ebay.com/ebaymotors/Parts...m280228934851&



Well according to this ebay ad it is a 292 water pump pulley?? Check the link??

That's it! Thanks. It was bolted to a BBC short water pump. I wonder if they interchange?

R/

[70rs/ss]

The 6656 part says to be BBC pulley, but it looks like the one on the Ebay as well. I do not think they cross but not sure. Year one has them listed as V8 pulley (no BBC or SBC designation so maybe??) I wouldn't think one from a BBC would work on a 292, but maybe???

[71 super]

I know that sb pullies will work on short wp big blocks, the diameter is a little different but the pullies will interchange and will work- they line up correctly etc. so if you have a double upper pulley off of a a/c sb truck it can be used on a short water pump bb truck.

[Rod]

says 69-72 292 waterpump pulley without AC and lists with PS for 71-72 in my books.

[leddzepp]

I have had several 2 groove water pump pullies for BBC short water pump, all with different numbers. I researched a couple of the numbers and came up with an I6 application and others...but the pullies were IDENTICAL to each other otherwise. I am sure that there are several years that interchange.