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87 mm bore and the 91mm stroker crank = 2164cc / 133cc increase
Subaru Impreza 2006-Current
Turbosmart's design ensures that it fits perfectly into place - no extra modification of components is required for installation
Whether you're daily driving or chasing numbers at the track
Rocker Arm Stud & Nut Kit, 12-Point Nut reverse rotation 87 mm bore and theSuit GM LS Series Except LS7 Part Number : AR234 7207 If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within . 005 T. I. R. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extralarge
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