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Old 08-14-2016   #41
tpepmeie
 
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Default Re: 427 LT5 Build 2 underway
yes, it was Dom.
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Old 08-14-2016   #42
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Default Re: 427 LT5 Build 2 underway
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Originally Posted by tpepmeie View Post
In case you guys want to follow along. The rotating assembly is together. My blog is updated with the latest steps. This will be the last update for awhile, as I need to get the cylinder heads ready and the cams timed.

http://pepmeierenginedevelopment.blogspot.com/




I like the Gas ports on the Pistons Todd
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Old 08-15-2016   #43
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Default Re: 427 LT5 Build 2 underway
OK Al, I'll bite: What are gas ports on the pistons? Those tiny little holes around the perimeters? And what exactly is their purpose? Inquiring minds want to know....-Bob
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Old 08-15-2016   #44
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Default Re: 427 LT5 Build 2 underway
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OK Al, I'll bite: What are gas ports on the pistons? Those tiny little holes around the perimeters? And what exactly is their purpose? Inquiring minds want to know....-Bob
Yes Bob.. I stumbled across this:
Quote:
a gas port is a hole drilled from the piston deck (a vertical gas port) or from the top ring land (a horizontal gas port) to the rear of the top ring groove. The purpose of a gas port is to apply combustion pressure directly to the top ring, forcing the ring face firmly against the cylinder wall. The number, size, and location of gas ports vary with bore diameter, engine type, dome design, and the engine builder’s personal preferences.
Here is a link:
http://rehermorrison.com/tech-talk-2...-of-gas-ports/
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Old 08-16-2016   #45
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Default Re: 427 LT5 Build 2 underway
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Yes Bob.. I stumbled across this:


Here is a link:
http://rehermorrison.com/tech-talk-2...-of-gas-ports/
Ahhh....thanks Jeff. I am enlightened! And the article itself was quite interesting. Right at the end it said: "When you cross the threshold of 1,000 horsepower, gas ports become essential for maximum performance." Certainly glad that Todd won't be held back any! --Bob
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Last edited by WARP TEN; 08-16-2016 at 12:08 PM.
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Old 08-16-2016   #46
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Default Re: 427 LT5 Build 2 underway
Looking good Todd.
The new rod bolts appear to have larger heads.
Did the block require further clearancing from before?
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Old 08-16-2016   #47
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Looking good Todd.
The new rod bolts appear to have larger heads.
Did the block require further clearancing from before?
No. A bit of an optical illusion. The shoulder is a little fatter, but the overall height is the same as the prior bolts. No clearancing required.
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Old 08-17-2016   #48
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Default Re: 427 LT5 Build 2 underway
Todd did you buy sleeves from AES?

Pete
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Old 08-18-2016   #49
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Todd did you buy sleeves from AES?

Pete
No.
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Old 08-19-2016   #50
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No. A bit of an optical illusion. The shoulder is a little fatter, but the overall height is the same as the prior bolts. No clearancing required.
2" rods journals then?
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