USE THE PULL-DOWN MENU ABOVE TO SELECT CENTER BOLT SIZE, THEN ADD TO CART ^ SPECIAL ORDER, Call for ETA Universal GReddy Inner-Fin Oil Cooler Cores: with -10AN - M18xP1.5 O-ring Fittings (p/n 12005103) 12004312 - #10 row - L299 x H142.6 x W50 w/ -10AN fittings (+540cc)12004314 - #13 row - L299 x H142.6 x W50 w/ -10AN fittings (+720cc)12004316 - #16 row - L299 x H142.6 x W50 w/ -10AN fittings (+840cc) * - 08 AN fittings p/n 12005110* -10 AN fittings p/n 12005103* -12 AN fittings p/n 12005112 * Ideal to be used with GReddy Oil Block Adapters for a custom Oil Cooler set-up. p/n 12401123 / 12401119 or 12401111 / 12401129 / 12401131 / 12401135 with 12401114 (Blog) * Aslo see GReddy Oil Cooler External Thermostat Block when adding an Oil Cooler core to an existing Oil Filter Relocation Kit