2020 ARP Catalog

86 Red part numbers indicate new items WARNING: Cancer www.P65Warnings.ca.gov. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov . s l California Residents ENGINE COMPONENTS Application UHL Thread Size Socket Size Part No. BUICK All V6 & V8 1.300 3/4-16 13/16 120-2501  l CHEVROLET Small block 2.470 7/16-20 5/8 134-2501  l Small block 2.470 7/16-20 13/16 234-2501  l Small block 2.470 7/16-20 1-1/16 234-2502  l Gen III/IV LS Series small block (except LS7) 4.325 M16 x 2.0 1-1/16 234-2503  l Gen IV 7.0L (LS7) & GEN V 6.2L (LT1) small block 5.185 M16 x 2.0 1-1/16 234-2504  l CHEVROLET Big block 1.550 1/2-20 5/8 135-2501  l Big block 1.550 1/2-20 13/16 235-2501  l Big block 1.550 1/2-20 1-1/16 235-2502  l CHRYSLER 318-440 Wedge & 426 Hemi with thin damper 1.420 3/4-16 1-1/16 245-2501  l 318-440 Wedge with thick damper & Viper V10 2.200 3/4-16 1-1/16 240-2501  l 5.7L, 6.1L & 6.4L Hemi 4.000 M14 x 1.50 19mm 147-2501  l SRT-10 2.175 3/4-16 13/16 147-2504  l DIESEL Chevy 6.6L Duramax - bolt 2.750 M18 x 1.50 27mm 129-2503  l Chevy 6.6L Duramax - washer for 129-2503, as applicable 200-8793 s Dodge/Cummins 5.9L 12V/24V (2007 & earlier) (4 pcs.) 1.425 M12 x 1.25 14mm 147-2502 s Dodge/Cummins 5.9L & 6.7L 24V (2008 & later) (4 pcs.) 1.725 M12 x 1.25 14mm 147-2503 s As the crankshaft flexes and twists, the harmonic damper absorbs incredible amounts of kinetic energy. To ensure that the damper is locked in position, ARP has developed these ultra strong 190,000 psi bolts that let you exert maximum clamping force. Special fea- tures include 1/4˝ thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head. HARMONIC DAMPER BOLT KITS

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