Just a quick update because I haven't posted in a while. The engine is no further along because of a hold-up with parts. I ordered the ARP rod bolts and main studs directly from ARP
to make sure I got the right ones. I gave them the year, make & model, VIN number, engine code and casting # off the block from the 93 donor car and the main studs were still wrong. I tried, I guess. Turns out after some research they sent me Series 2 studs. The Series 1, it turns out, has much larger main bolts (1/2" x 13 as upposed to 7/16").
Can anyone confirm for me that all Series 1 L67s have the same mains and bolts? Are L27s the same?
According to the tech at ARP, they don't make main studs for this engine, and can't match up anything from their stock. So, they faxed me a big sheet of measurements to take and they will be making them for me.
I don't want to get into this too much yet, but I'm building a Series 1 web site. Since Seriesoneperformance.com is no longer active, we've once again got a big void in the GM aftermarket that I would like to try and fill. More info is coming in the next few months. I will probably sell the Drunken Sailor/ARP main studs on the site. I'm working on a bunch of cool parts, including cams and heads.
For those wondering, the correct ARP part number for the ARP rod bolts in 123-6002 if yours have a 1.7" underhead length and 123-6001 if they measure 1.5". Summit has them for around $75, which is cheaper than the GM dealer at $15 per bolt
. The main bolts are discontinued through GM.