Originally posted by TraceZ
Your stock 5.7" PM connecting rods should not be used for a 383, 396, or a 409. Due to the lower location of the wrist pin location on a 5.7" rod, there is much more side loading on the side and skirt of the piston with any increased stroke. An aftermarket 6" rod should be used with any stroker.
There is a little more clearancing to the block and oil pan needed but, the stock oil pan can be used with a litle modification. Seen it done time and time again with no problems.
I know you are trying to save money, but you really need to consider using the right parts.
Build it once, and build it right.





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