Don Terrill’s Speed-Talk

any advise on winsdor block & oil system mod s for a wet sump,attempting to be in the 600 hp range single 4barrel,mud drag race truck application,head & CAM,brand of reliable parts recommendations ?like to stay with iron heads, thanks HAD

N351 heads, hard to beat for an iron head.. the flow numbers don’t look great, but they flow consistently north of .800 lift, 10* valve angle and dual quench surfaces make broad power and they only need 28* of total timing, they don’t have a problem making 600hp with relative ease

Put an oil cooler on it, the big main journal diameters create a lot of heat..

hadmtrst wrote: ↑Tue Aug 14, 2018 11:39 pm any advise on winsdor block & oil system mod s for a wet sump,attempting to be in the 600 hp range single 4barrel,mud drag race truck application,head & CAM,brand of reliable parts recommendations ?like to stay with iron heads, thanks HAD

I have one for sale; much less expensive than you could build one ... the Engine Masters Engine I ran last year in the contest.
Only has dyno time on it. Has CNC'd aluminum heads though
Private Message me if you have an interest.

With a Head like a Dart iron 200 cc iron That flows 285 Intake cfm you should have no issue making 600 hp even with just a 10 to 1 comp provided the headers tune well and are not larger the 1 3/4" ID.

I've got one Vizard and Terry Walters put together sitting on a stand, dynoed over 600 hp, Kansas City area if you are interested. mj-brooksathotmaildotcom.

hadmtrst wrote: ↑Tue Aug 14, 2018 11:39 pm any advise on winsdor block & oil system mod s for a wet sump,attempting to be in the 600 hp range single 4barrel,mud drag race truck application,head & CAM,brand of reliable parts recommendations ?like to stay with iron heads, thanks HAD

Assuming your using a stock block i would half fill the water jackets, set main bearing clearence at .003-.0035",
Coated cam bearings and restrict oil to them, restrict oil to the topend. Ford racing used to sell a restrictor kit. Not surr if they still do as i just make my own.
Heads you have the n351, dart/world products , or if you can find them an old set of iron tfs highports. If it were mine id search for a set of highports but the others will get the job done also . Darts/world will definately need portwork to get you there. I cant comment on the n351 because its been years since ive seen a set and dont recall how the ports are or flow #'s.

This is really slow this morning, triple posts

Excapt for the water-jacket filling, IF you did it this way you would be doing yourself a disservice for longevity and reliability.