|
Smart quod bastardus
Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,239
|
identifying the rod bolts in my 79 930 engine--ARP or OEM?
I am tearing down the 79 930 turbo 3.3 engine to rebuild and suspected to find normal hex head nuts on the rod bolts for my 930-64? 3.3 liter engine.
However I was surprised to see the aircraft style 12 point nuts on the ends of thr rod bolts when I removed the pistons and looked down in the case. did Porsche use these 12 point nuts on OEM turbo engines in the 78-79 cars or are these perhaps ARP bolts that were installed during a previous rebuild?
Is there any markings on the ARP rod bolts that I can see to identify them by looking at the end of the threaded bolt or perhaps at the head end?
Would like to save a few hundred $$ bucks and not order ARP rod bolts if I am lucky to have them already.
Fred
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
|