H-D #18600-53, 18610-53 TAPPET BLOCK Set - OEM Cast Iron style Front & Rear for 1953 - 1975 Pan & Shovel Motors Screw Holes have Flat Machining as used by Factory 1976 & Later Set includes 8 Hex Head 1/4-24 Thread Screws for Flat Tappet Holes BLOCKS are Less likely to crack like Guides with Tapered Screw Holes GUIDES come Undersize and need to be Finished Honed to Tappet for .0005" Clearance CAD-ZINC finish
H-D #18600-53, 18610-53 TAPPET BLOCK Set - OEM Cast Iron style Front & Rear for 1953 - 1975 Pan & Shovel Motors Screw Holes have Flat Machining as used by Factory 1976 & Later Set includes 8 Hex Head 1/4-24 Thread Screws for Flat Tappet Holes BLOCKS are Less likely to crack like Guides with Tapered Screw Holes GUIDES come Undersize and need to be Finished Honed to Tappet for .0005" Clearance CAD-ZINC finish
