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Old 01-29-2007, 12:07 PM
machine shop tom machine shop tom is offline
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Join Date: Sep 2006
Location: N L Michigan
Posts: 114
Default Gotta check everything..........

Here is yet another reason that you can't take new parts for granted.

I receieved the Eagle stroker kit for the Pontiac 455. As a whole, the kit is a nice deal. BBC H-beam rods, SRP forged 4032 pistons (available only through Eagle), Perfect Circle moly race rings, etc. The crank is a cast steel unit with BBC rod journal sizing, 4.250" stroke.

The crank is where the problem is. Both the rod journals and main journals measure too big near journal radii. The journals measure fine in the middle, but get near (not into) the radius area and they mike .001" to .0035" over the high limit. If the rods sized to the low side, it is possible that the crank would not even turn.

I contacted Eagle and they were very good about it. They requested that I send the crank back (they would credit me the shipping) and they would send another. I couldn't ask for more than that. But what I am doing is sending the crank I have to my trusted crank grinder to grind the crank properly and Eagle will send me the appropriate bearings.

As I have said before, these type of kits are good deals, but the devil is in the details........

tom

 

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