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 ones with Tapered Screw Holes GUIDES should 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 ones with Tapered Screw Holes GUIDES should be Finished Honed to Tappet for .0005" Clearance CAD-ZINC finish
