Thread: What can I do with a 410?

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Yup, it's an old post. But it is full of good information!!! Denny, I gave a copy of your cylinder head post to my machinist and work is progressing. This is the motor that will eventually wind up in my Ranchero if I ever get a chance to get back to it. I did score a set of adjustable aluminum rockers at a swap meet allready this year, stock ratio aluminum ones, still have to get new rocker arm shafts. I am using a 390 block, and still considering a stroker kit with some light pistons. Wish I could find a stock dual four set up for it, I have a PI intake for it, and a used Dove (another swap meet peice I picked up) but the Dove is a long runner open plenum design and would probably put the rpm range a bit high for where I want to run it. It will of course be backed with my old trusty Doug Nash 5 speed and a nine inch floater rear end. If I decide on the bottom end I will hit up you and G for some help on the cam. Keep the good info coming.

I have a friend that has one in a 79 ford bronco. I am amazed at how much torque it will produce and still rev to 6500 with a stock cam and valve springs. In order to make it a 428 you will have to bore it .080 to get to the standard 4.13 428 bore. If it will go that far why not. The thing to remember is they only made the merc 410 for two years if my memory is correct. If you are going to race it you will only have a small usage time out of it and then you can't rebuild it. So it might be better to leave it as a 410 and slowly bore it so you can continuely use it rebuild after rebuild. With a decent set of heads and a nice cam, I don't think you will be disappointed!

Dave

Yup, they do. I was on a set at an auction last summer up to $950.oo, they finally sold for $1600.oo. Haven't done a thing to the ports yet, gotta wait til my machinist isn't quite so busy (circle burner motor season now) and go do some playing on the flow bench. For now, he is doing the guides, valves, and spring heights. I will be anxiously waiting for the porting plans. Thanks