Author	[Modern View]
OldMoIron 10-28-2012 15:43:37 71.1.126.144 Report to Moderator	do you have to get shorter pushrods when you mill the head on a MH277, or instead of milling the head, get those dommed pistons from extreme tractor parts. maybe shorter pushrods can be bought but where do i start looking? [Reply]   [No Email]
MH49 10-30-2012 07:00:51 4.26.40.2 Report to Moderator	Re: MH re-sleeve;re in reply to OldMoIron, 10-28-2012 15:43:37   I have 100 thou off of my head and I have found the 277 push rods are shorter than the 260s so you should be fine. Should you run into problems, you can also shim the stands that hold the rocker shaft to compensate for what you took off the head. [Reply]  [No Email]
OldMoIron 10-29-2012 18:14:42 71.1.126.144 Report to Moderator	Re: MH re-sleeve;re in reply to OldMoIron, 10-28-2012 15:43:37   Thanks for all the advice, I think milling the head be the way I go. I have a budget I have to stay with. [Reply]  [No Email]
Mike in Mn. 10-29-2012 08:48:40 74.37.49.60 Report to Moderator	Re: MH re-sleeve;re in reply to OldMoIron, 10-28-2012 15:43:37   If you install a custom ground cam, have the base circle lowered, and have the lifters resurfaced and shortened, that will give the same effect as shortening the push rods. You can take 1/8 to 3/16 off the head for compression and make that difference up with the cam and lifters. You do have to watch your rocker arm geometry. Another way is to make and install spacers under the rocker stands, one has an oil hole for the rockers. [Reply]  [No Email]
David G 10-29-2012 08:21:41 205.215.206.18 Report to Moderator	Re: MH re-sleeve;re in reply to OldMoIron, 10-28-2012 15:43:37   Check out extreme tractor parts, they are advertising domed pistons for $600, mine cost over $1000. I would make sure it works with stock crank and rods. [Reply]  [No Email]
Mike in Mn. 10-29-2012 08:52:46 74.37.49.60 Report to Moderator	Re: MH re-sleeve;re in reply to David G, 10-29-2012 08:21:41   The pistons they were selling for $600 were for a stroker motor, they wanted over $1000 for 4 inch or 4 1/16 inch. [Reply]  [No Email]
jd b puller 10-30-2012 20:09:30 65.190.135.248 Report to Moderator	Re: MH re-sleeve;re in reply to Mike in Mn., 10-29-2012 08:52:46   I think I've talked/E-mailed with a couple of you. I am the owner of Extreme Tractor Parts. To clarify, the MH44 pistons shown on my site are just a sample that I did for someone. They are just on the site to make you get all googli-eyed and slobbery. Nothing is set in stone. I can make whatever you want. I don't stock these pistons, they are made to order. If one of you can provide the compression height (that's from the center of the pin to the top of the piston) and pin dia of a stock piston, I can give you an accurate price. It doesn't matter to me if it's 3.875, 4.00 or 4.063 bore. Each forging has limitations for pin dia and overall height. To comment on the remainder of the discussion, the key is to get the compression up where you can make the most use of whatever fuel you intend to use. Regards, Ray 919-605-6040 [Reply]  [No Email]
David G 10-28-2012 17:19:25 205.215.206.18 Report to Moderator	Re: MH re-sleeve;re in reply to OldMoIron, 10-28-2012 15:43:37   I would only take enough off the head to make it flat, then increase the compression with the pistons. [Reply]  [No Email]
David G 10-28-2012 17:18:37 205.215.206.18 Report to Moderator	Re: MH re-sleeve;re in reply to OldMoIron, 10-28-2012 15:43:37   The pushrods will be fine, there are adjustment screws on the rocker arms. [Reply]  [No Email]