probe pistons
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Joined: Jul 2001
Posts: 3,204
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From: New Boston, IL, USA
Car: '90 Formula 350
Engine: 383 SBC
Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall
Axle/Gears: 10 bolt 3.23
I've seen Car Craft has been using them regularly. Pretty much from what I've read their suppose to be pretty heavy duty. This topic might do better in tech engine board.
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