Ive only built a 6 motors so I not to be confused with an expert. However after having paid bigish $ for replacement OEM springs before and reading posts from respected builders like this one (
Just another 3.2 Short Stroke) I thought I'd give Eibach valve springs a try.
There are two versions with different seat pressures and lift tolerances. I ordered 2 sets of the high-lift versions from Summit Racing in mid April. They weren't available at the time from Pelican, EBS or Supertech. Those are of course my preferred sources.
When placing the order on the phone I asked the rep to call Eibach and confirm a delivery time. They stated less than a week. Weeks and weeks passed and as I called both Eibach directly (who referred me back to Summit) and Summit they continued to assure me delivery would be "in the next few days." It sounds foolish of me now, but I continued to let them string me along until August 7.
On August 1 I called in to Summit again to ask about delivery...I have 3 motors now in pieces and need the springs before the Canadian winter decends and I lose the season. They kept me on hold while they called Eibach, and came back on the line to tell me the order would be shipped on Wednesday. On Thursday I called the back to check shipment, and the Summit rep told me "shipment will be in 2 weeks." I insisted he let me listen in while he called Eibach, where they told him they were having problems sourcing the inner springs and they couldn't commit any ship date." My blood was boiling now, how could them only days before promise shipment when in reality they didn't even have the raw materials on hand yet. The Summit rep offered 20% discount for my inconvenience. The Summit rep kept blaming Eibach for lying to them, but I wasn't having any of it...I'm Summit's customer and if they cant manage their vendors that reflects on Summit (where the markup lies) and I don't want to hear excuses.
So a few lessons learned;
1. Buy from Pelican, EBS, Supertech, XTreme and other Hosts, Sponsors and friends wherever possible.
2. Eibach lies
3. Don't depend on Eibach
4. Don't buy from Eibach
I've separately taken this up with Eibach but in the meantime I thought it worth saving other people time and $ waiting for a supplier who not only cant deliver but actively lies.
John