I have crane roller rockers and when putting the new heads on we cracked a poly lock and I have went to every parts store around here and they cant find the correct one.

The top of the rocker has the numbers 1.7 and then on the other side it says 13 and at the bottom it has 4-84.

I know what the 1.7 means but it dosent seem to be enought to help me find the correct crane part number for the roller rockers which i need to identify the poly lock size I need.

Any help would be greatly appreciated!!!!!!!!!!

Every poly lock I ever scene looks the same except for the ones for stud girdles that are longer. And of course the different stud size 3/8 or 7/16. Sorry I don't have any spares but I do have 2 sets of girdles for sale.

rs,
A parts store is not where you want to be Find a local machine shop that does performance work and chances are they might even have one sitting around. There are several different dimensions on poly locks and you need to get the correct one. The numbers on the rockers wont help, take a good poly lock with you. If nobody can help you, send me the dimensions and I will get you one. You need to know the outside diameter, the "wrench" size and the overall length. A pic would make it even easier. I probably have a few spares just sitting taking up space.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md

Bill,

I have tried every machine shop and parts store in town with no luck. The last place said if I could find the roller rocker part number he could look at his old crane book and get the exact specs of the poly lock it came with. I know its 7/16 studs and 5/8 head and about 1 inch long. I would be forever in debited if you have one!!! I can call with my cc info or paypal and I will pay for overnight

rs,
Call me in the morning after 8 .... 301-843-5700 If I have one its yours, or I can get one drop shipped from the PBM http://www.pbm-erson.com/facilites.php warehouse in Wentzville, or you could even drive out there and pick it up if you want. They dont sell to the public, but if I tell them you are picking it up for me they will give it to you.

The most important dimension is the size of the "slot" in the rocker arm. The poly lock has to fit in there and there are a couple of different diameters.

Let me know,

Bill

Rockstar38

I have some used poly locks from my last rebuild. They are for 7/16" studs, 5/8" hex heads, 1" long, and approximately 5/8" in diameter. If this is what you are looking for then PM me and I'll send a couple of them out first thing in the AM.

Mike

You can feel the love on this thread!

I'm sure I have a few laying around so if you still need one let me know and I will NINJA ya one.

John

Rocky, have you checked with Brett at PBB. I know ASH needed a single crane gold last year and they had some.

the cranes do take a thin wall nut...summit jegs does have them, you will need to know the OD