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Ford Tractors Discussion Forum

Re: Bi-directional pistons??

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Destroked 450

11-12-2019 18:13:48

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233 is the small bore block but has the same stroke as a 256.

Can you post a photo of the pistons.

I'd probably use the 268 crank, 5000 rods and get a rebuild kit for a late 6600 or early 6610, I'd also talk to you dad about boring the holes in the head for 9/16 bolts and forget the special studs.

After a bit of search I found the pistons used in the 9030 where also used in the 6.6/7.8 Brazilian truck engines.

But the rings where used in a verity of tractor engines including the 4630 turbo, 7740 and a number of the later Genesis engines.

Located the rings thru parts spring for $45 per hole.

Piston # 83993129 supersedes E9HZ6108A and E7HN6108LA

Ring #87802834 supersedes 87802834 these rings fit a large number of Ford/NH turbo diesel engines.

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Robert (ID)

11-12-2019 19:09:07

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 Re: Bi-directional pistons?? in reply to Destroked 450, 11-12-2019 18:13:48  
Yes that's the right number for the rings! Parts Spring?? never heard of that one before..

I'll see if I can get pics of the pistons in the next few days.

Ive wondered about boring out the head bolt holes with the mill or magnetic drill. Id also have to bore out the rocker arm shaft and supports that could be tricky..

Kentucky, well I don't see us swapping blocks then..

Thanks again

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