Piston experts needed
This is a discussion on Piston experts needed within the NHRA forum, part of the Pit Area category; It's time for me to get some edgumacat'n on piston and the differant types. Ok, Please describe why ...
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#1
10-19-2006, 07:03 PM
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Piston experts needed
It's time for me to get some edgumacat'n on piston and the differant types.
Ok, Please describe why you would choose one type over another: 1. Flat top (why the indents?) 2. Domed 3. Dish And I've put on a pic of a piston from John Forces FC. It appears to be a flat top with part of it missing. LOL. What purpose would there be to having that part of the piston shaved. Thanks Crazy 
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#2
10-20-2006, 10:23 AM
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Tony,
The first piston has the indents for valve clearance. This particular piston has double reliefs so that it can be installed in any cylinder, probably a non-performance application where compression is not an issue. Second is a high compression big-block chevy piston, with dome to fill the large combustion chamber. Third is low compression smog motor type piston. Blown fuel motors are in the 6.5 -7.0 compression range so it takes a flat top piston with the large Hemi chamber to get that kind of compression. What appears to be a missing part is actually the intake valve relief. Hope that helps.
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#3
10-20-2006, 05:21 PM
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Thanks for the info.
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#4
10-20-2006, 05:40 PM
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Quote:
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