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Engine gurus
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dgerth View Drop Down
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Joined: 27 Nov 2012
Location: NC Wash
Points: 172 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dgerth Quote  Post ReplyReply Direct Link To This Post Topic: Engine gurus
    Posted: 03 Aug 2015 at 9:37pm
Gentlemen,
I have a D17 block, 5.6 stroked crank, 4.6 pistons @12.1x1 cr and will have new rods built. My ? is, would anything be gained, other than fattening my machinists pocket, by having larger valves installed? RpM's will be well under 3k. This will be in a WD puller @ 373cid.
tks
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Bill_MN View Drop Down
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Joined: 12 Sep 2009
Location: Sioux Falls, SD
Points: 1466 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill_MN Quote  Post ReplyReply Direct Link To This Post Posted: 04 Aug 2015 at 5:23pm
Yes but the benefits will be limited by the very poor-flowing head and manifold. Best do some porting and bowl blending as well, if not already done.


Edited by Bill_MN - 04 Aug 2015 at 5:24pm
1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow
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mgburchard View Drop Down
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Joined: 14 Sep 2009
Location: Tennessee
Points: 1123 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mgburchard Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2015 at 9:00pm
Check out the Gregg's antique puller magazine it has the cylinder head Pankwy done that's running larger cubic inches at 5 grand on tach
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