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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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First and foremost, a disclaimer is in order. In no way is the following suggested to be a tutorial on degreeing in a cam. It is just an explanation of how it worked for me. Professionals (I don’t have to name any names) will have different procedures and tools to accomplish the same task in a manor that works best for them.
My intent is purely to help those who may be curious or may not have the confidence to try it themselves. Sometimes it just takes one little thing for the light to come on and self confidence will follow.
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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Degreeing in the cam is a vital process in building any serious engine. The details and understanding while watching over the shoulder of professionals like Tim McMaster have never given me confidence to try it on my own. However, this time I am by myself here in Southern Oregon when it comes to racing Y-Blocks and I decided to take on the task.
The purpose is to make sure the cam you just installed matches the cam card that came with it. Machining mistakes are rare, but pulling the wrong cam off the shelf and putting it in the box with your cam card is a bigger possibility.
To be continued.........
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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Hi, Allen. It would be good to see you out there. My plan is to attend Speed Week for the first time since 2016. September and October are better for lots of reasons, but the best chance for good salt and weather is in August.
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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bird55
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Group: Forum Members
Last Active: 3 Years Ago
Posts: 1.1K,
Visits: 58.8K
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Glad to see you are back at it. The insides look good. Maybe I'll see you on the Salt this year.
A L A N F R A K E S ~ Tulsa, OK
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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Note the 20 or so gas ports on the top of the gapless ring.
Just a shout out to John Mummert for some amazing pistons that were made to order some years ago.
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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Hi, Ted. With a max of 15 pounds of boost, I set the end gap at .029". I am used to seeing an overlaping gapless ring, but these came with a bottom grove to hold a rail ring.
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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Ted
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Group: Administrators
Last Active: 4 hours ago
Posts: 7.5K,
Visits: 205.9K
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57FordPU (12/30/2021)
I am using Total Seal rings with a gapless top ring.What piston ring gaps are you targeting for?
  Lorena, Texas (South of Waco)
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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I am using Total Seal rings with a gapless top ring. 
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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All eight rods are now resized and the pistons are ready for new rings.
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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57FordPU
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 726,
Visits: 73.6K
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Rods are next, but first a small machining process to correct my mistake.
If you should decide to stamp the rods and caps to mate up correctly in the future, make sure you do so while they are still attached to the crank. If you stamp these off the crank a distortion may occur.
When this short block left Tim's shop, I know the big ends of the rods were well within spec. However, when I decided last year to take the engine apart, I couldn't read the finely engraved numbers to match up the rod with the caps. I wanted to make sure I could easily read them, so I stamped them (off the crank) with a 3 pound hammer, I'm exaggerating, it was only a 2 pound hammer (my dumb a**). They were not far off, but out of spec is out of spec.
Checking for out of roundness.
Material was removed from the mating surface of the big ends and then the rods were honed to the proper size.
Charlie Burns Laton, Ca (South of Fresno)
BurnsRacing981@gmail.com
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