Anyone have a rod bolt they could loan me or know their measurements?

It'd be great if you could quantify the strength improvement of your rod bolt kit and include a one-piece pan gasket. Should sell itself.

Westech said:

A new rod bolt replacement kit.

Click to expand...

Will this require that the big end be resized or is this a remove and replace?

what ever happened with this idea?

Have to have a rod bolt to send to ARP for them to design from.

I have to make a delivery Tuesday. When I'm there I'll see if I can zing off an oil pan and snatch a rod bolt. I have one rod at home but it's a little worse for wear as it was tossed from a multifuel.

Pat.. I already wend down that road with ARP.... Cost to made them made is just too high. Your talking $25 plus per bolt and that is with a Very large order.
I did find a Company that does have new rod bolts but at $42.50 each I said no. Your best bet is NOT going to ARP but finding a local shop to make them.
I am working with a local place but the bolt is no POS.. there going to be VERY expensive.

Westy,
What do you consider a large order? I've got eight engines that I would tear into and replace the bolts, just for peace of mind. 8 x 12 = 96 bolts, and that's just me. (Yes, I'd have to swear off GL for six months or a little more, but it should be a one shot deal!)

The rep said a 500 Blot run min.

I could use 24 myself.

The killer deal with this bolt is its a "stepped" bolt.. the threads are a larger diameter then the bolt.. there is a TON of work to make one... My friend runs he 2ed shift of a place that makes PTO shafts, motor shafts, all that kind stuff and he said it would take a CNC a while to make one bolt. He said the set up time would not be bad, would be one reset per bolt. But there would be a lot of man hours. you would have to man the CNC 100% and not leave it. By the time you walked away and started something else it would be time for the reset.

We have a lot of bolts custom made for us by ARP. You generally need to make at least a couple thousand to get the price to a reasonable point.

Did ARP do a destructive test on a multi rod bolt? I would be interested in their analysis of them, maybe it's a design issue, not a quality issue? It would suck to order 500+ bolts and have them be no better than what can be found NOS on the surplus market.

Assuming ARP's bolts made to the original multi design WOULD be significantly better, then considering a larger order is probably the way to go. Personally I don't think you'd have any trouble selling 500, but if the price per bolt could be lowered by ordering a few thousand, something to consider would be shopping the idea around to some of the big MV suppliers...... Maybe White Owl or even Saturn Surplus would like in on the deal. Something to consider anyway.

Jon

Westech said:

The killer deal with this bolt is its a "stepped" bolt.. the threads are a larger diameter then the bolt.. there is a TON of work to make one... My friend runs he 2ed shift of a place that makes PTO shafts, motor shafts, all that kind stuff and he said it would take a CNC a while to make one bolt. He said the set up time would not be bad, would be one reset per bolt. But there would be a lot of man hours. you would have to man the CNC 100% and not leave it. By the time you walked away and started something else it would be time for the reset.

Click to expand...

I would think they would hot forge the blank, centerless grind it then roll the threads. Not as labor intesive as standing by a cnc continually.

but there you have a CRAP load in set up costs..... CNC is the way to go if your making under 1000 of them.

Anything ever come of this? Was another source found?

Never happened, ARP kept giving me the run around.

Autocar said:

We have a lot of bolts custom made for us by ARP. You generally need to make at least a couple thousand to get the price to a reasonable point.

Click to expand...

How do you get anywhere with them? They are giving patracy no love. Do you have an inside contact, or at least a salesperson you regularly deal with?

Who made the original bolts? That tooling could still exist in someones hands.

Possibly a similar bolt for a different application?

is it a non-standard thread?

Patracy, would you be willing to share the specs with me?

Kohburn said:

is it a non-standard thread?

Patracy, would you be willing to share the specs with me?

Click to expand...

See attached