Not much of an update, but I did find something interesting today while I was sorting thru the Poly parts. Turns out the Poly pushrods are only .065 shorter than the intake (short) pushrods for the 331/354 Hemi.


Hemi poly PR by M Patterson, on Flickr


Regardless of the cam I use in the short block I'll be ordering adjustable pushrods, and it was kind of a pleasant surprise to find out that I won't have to worry about having to have oddball length custom pushrod made (the .065 difference is well within the adjustable range). So it looks like I'll be able to just order a complete set of pushrods for the hemi heads and an extra 8 intake pushrods to cover the Poly heads.



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