calaski8123

I got a new aluminum water pump and would like to get new stainless steel bolts for it. Does anyone know the size and lengths of these bolts?

Thanks,

Jim

JamesW

No, but that would be an excellant item to have in the FAQs... a graphic showing all the WP bolts and their size/lengths.

Jim,
In the mean time, the best thing to do is
1) take your new pump and trace it's outline on a piece of cardboard.
2) Poke all holes through the cardboard with a pencil.
3) Take the bolts out of your current water pump, placing them in the corresponding template location.
4) When you're done, write down the size/length of each, replacing them back as you note them.
5) Head for the hardware store, armed with this shoping list.

Be advised tho, Stainless Steel bolts are actually softer allow than Grade 8, or even regular Grade 5 bolts. The nickel content in the stainless steel allow helps resist corrosion but makes it more ductile.

You can use them, but don't torque the snot out of them when installing or you'll be chasing broken bolts in your block.

66GTKFB

This is the results of my research on a cast iron water pump. It may help and it certainly will get me off my butt to do the same for an aluminum water pump. I got two aluminumpump cars to get ready to do.
Jim

[IMG]local://upfiles/64738/30CD81708C0042EB8543303907F0AAC1.jpg[/IMG]

Colorado_Mustang

ARP makes replacement bolts.

calaski8123

Thanks for the replies. I know they make the bolts in a kit, but it is $22 for 9 bolts plus shipping and I won't have them until next week. I kind of wanted to do this job this weekend. It was just one of those things when you buy the water pump and in the back of my mind I told myself I have the bolts, but then you see how crappy they look with the nice new pump. The other problem I have is I got a few of the bolts messed up with others so I am not 100% sure shich are the water pump bolts AND I don't know which bolt goes in which hole. I was hoping to have a diagram. The catalog that sells the bolts has a photo with arrows going to each hole but I don't know the size or lengths.

If worst comes to worst I will buy the kit and aI will post the answers here when I get them.

Jim

Colorado_Mustang

Don't know where you're at, but a local shop may have a kit in stock, or the bolts at least (and can cross reference those numbers). http://www.arp-bolts.com/Catalog/Catalog.html

VeronicaScz

Hello.They're all 5/16-18NC. One of them is 5 inches, one is 3 3/8, one is 2 inches and the rest are all 1 inch. Hope that helps.