 40 over pistons in 5sfe, using 7afe pistons |
 Dec 24, 2010 - 10:22 PM
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 Enthusiast  Joined Aug 4, '05 From Ocala Fl Currently Offline Reputation: 0 (0%)  |
alright i have a question that maybe some one could help me with. i am going to rebuild my 5sfe engine and i have a set of 40 pistons for a 7afe laying around. they are brand new with the wrist pins and rings. could i use these on my 5sfe engine if i gave the pistons to the machine shop and told them this is whats going in. any help would be great. thanks
-------------------- 1997 Celica Convertible (going to rebuild again)
1994 TT 6Spd Supra 1969 Camaro 1997 S-10 1997 Astro Van |
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Dec 25, 2010 - 8:42 AM
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 Enthusiast Joined May 10, '10 From MA Currently Offline Reputation: 37 (100%) |
they're not bigger than the 5s because the 7a cylinders are narrower. If the 7a is 81mm and the pistons are 40 over, that means they are 81.4mm, not 85mm. The 5s has a 87mm bore. If you look in the stickies it would tell you.
You can't hone the 5s an expect it to become smaller... |
Posts in this topic
STCelica 40 over pistons in 5sfe Dec 24, 2010 - 10:22 PM
mkernz22 i highly doubt it. the 7a has narrower cylinders t... Dec 24, 2010 - 10:33 PM bccentaur3 .40 over will make the walls a bit narrower, but i... Dec 24, 2010 - 11:52 PM STCelica I know the walls will be a bit narrower but after ... Dec 25, 2010 - 12:49 AM Hafkai 7A-FE pistons in a 5S-FE won't work since they... Dec 25, 2010 - 5:11 AM STCelica Is that stock pistons size? Like I said the pisto... Dec 25, 2010 - 8:25 AM presure2 no. Dec 25, 2010 - 8:28 AM STCelica K I see what ur saying now. Thanks. And merry Chri... Dec 25, 2010 - 12:45 PM
Smaay thats only the first problem, there is also wrist ... Dec 25, 2010 - 2:38 PM |
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