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last fall I bought a 72 Mach 1, With all the factory "go fast" goodies Now I'm looking at a total engine rebuild including sleeving one cylinder. I may or may not replace all the pistons. One is bad for sure the others are probably O.K., the bores look good and I may get by with just honing them. The cam is shot the rods need to be rebuilt along with a crank kit. Can anyone recommend a good cam for this motor? It is stock except for headers, intake & carb. If I replace all the pistons what compression ratio would you use? By the way, it's also getting a new clutch while the engines out.
I appreciate anyones input.
Thanx
Keith S.
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If you're smart, you'll have it all bored after the sleeve is installed. The reason I say this is Ford has a high nickel content in there blocks. You can hone one. But it's nearly impossible to get the rings to seat. Have it bored and a full set of new pistons. Shoot for 10 to 1 compression that way you shouldn't have a big problem with spark knock/detonation. with todays gas. Go to Comp Cams.com and download there Cam Quest. Put in all your info. Engine, heads, intake, carb size, compression ratio, valve sizes etc. It will tell you the best cam choices for your engine, and give you a very close estimate of your expected horsepower. It's great and you don't have to buy desk top dyno. JTS 71 Mach1
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When a new sleeve is driven in a block it will distort the cylinders next to it so at this point you will have to get it bored. It must be decked as well. You might as well get the blocks mains align honed at this point as well.
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Thank you Furray you were correct. the 351c's siamesed desiegn did in fact cause cylinder distortion on the neighboring cylinder. Everything is being bored .030 over.
Keith
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I would have it furnace brazed together so it will be done properly.
Align boring is a must as well as redecking etc....
I just cannot believe that you would spend the money to do that sleeving process since there are so many good blocks still available.
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Each to his own, I relied heavily on the advice of my mechanic, @ 25 yrs. experience, he's never steered me wrong. I am having the block align bored, 0.030 over. also decked. Including flat top pistons, I'm at $1,300. Another $300 will get the rotating assembly balanced. West coast Cougar Parts as well as Ohio Mustang, has gauranteed rebuildable blocks for $900 shipped from California. Although gauranteed, they have not been hot tanked and magna fluxed, some are still in cars. I may at some point do an all out restoration and I want it to be a true #'s matching car.
Anyway, Thanks for your input!
Keith
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When you put a sleeve in you don't bore the whole way down through the cylinder, you want to create a small lip at the very bottom so the sleeve will have something to seat against. Then put a slight bevel on the bottom outside of the sleeve so it sits in flat against the lip and plenty of Loctite. If it wasn't done that way even with the right amount of press in time the sleeve will start to fall right out of the bottom of the cylinder. You would be suprised at how many are done the wrong way and it always ends up sliding down. Although Cleveland blocks can be thin in places you shouldn't break through enough to bother it using a thin wall sleeve to repair it. Furnace brazing would be nice but expensive. There is going to be plenty enough meat in there to support a sleeve for a street engine, even if you did break through in a few spots.
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Furray, thanks for the input, I've been working on cars on & off for 30 years (20 years on the assembly line) and I still always learn more. There are some very knowledgable people on this forum. To clarify the sleeve issue, I didn't install it my self, I don't have the equipment. Due to the clevelands thin wall design I'm going with the machine shops recommendation and went 20 thousanths over for the sleeve and to clean up the other bores. That should leave room for one more rebuild in the future. Though I've been told that most Clevelands can go 60 over (with sonic checking). I've done business with this shop for over 25 years, still some of the same employees.
Thanks again,
Keith
P.S. They also balanced the rotating assembly for me.
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