DR21-1

ENGINE 33 TWIN CAM CYLINDERS •Available with black powdercoat or silver finish to match OEM components •Feature cast-iron liners •Bored slightly under nominal size and are not honed •Sold in pairs •Made in the U.S.A. SUG. RETAIL ........................$696.95 SALE PRICE DLR. COST...........................$522.71 $418.20 PART # DESCRIPTION FOR 99-17 TWIN CAM MOTORS (3 7 / 8 ” BORE; 95”, 103”, 106” APPLICATIONS) 0931-0438 Black powdercoat finish w/ machined fin edges BIG BORE PISTON KITS •Top-quality custom-forged piston kits manufactured with high- strength aluminum alloy •Includes pistons with skirt coating, rings, chrome piston pins and retainer clips •High-tech manufacturing ensures greater operating strength and lower expansion at high temperatures •High-tension compression rings with 3mm oil scrapper rails •Offset pin design for smoother operation •Replacement piston rings are available separately (sold as a set for one piston) •Made in the U.S.A. NOTE: Piston kits are intended for use with Revolution Big Bore Kits only. NOTE: Not recommended for use with cast-iron/ductile-sleeved cylinders. SUG. DLR. SALE PART # DESCRIPTION RETAIL COST PRICE 107” PISTON KIT FOR 07-17 TWIN CAM (3 15 / 16 “ BORE; 4 3 / 8 “ STROKE; 11:1 DOMED) 0911-0032 Piston kit $409.95 $287.00 $229.60 113” PISTON KIT FOR 07-17 TWIN CAM (4 1 / 16 “ BORE; 4 3 / 8 “ STROKE; 10.6:1 DOMED) 0912-0577 Repl. rings w/2mm oil scrapper rails 48.95 34.30 27.40 124” PISTON KIT FOR 17-20 M-EIGHT (4 1 / 4 “ BORE; 4 3 / 8 “ STROKE; 11.1:1 FLAT-TOP) 0910-5264 Piston kit 433.95 303.80 243.00 1250cc PISTON KIT FOR 91-20 XL WITH 1200 HEADS (3 9 / 16 “ BORE; 3 15 / 16 “ STROKE; 11.1 DOMED) 0910-1708 Piston kit 409.95 287.00 229.60 REPLACEMENT RING SETS •Sold as set for a single piston •For the entire line of Big Bore Piston Kits, Monster Big Bore Piston Kits and replacement ring sets, see page 673 of the 2020 Drag Specialties FatBook •Made in the U.S.A. SUG. DLR. SALE PART # DESCRIPTION RETAIL COST PRICE 107” PISTON KIT FOR 07-17 TWIN CAM (3 15 / 16 “ BORE; 4 3 / 8 “ 128” KIT FOR 17-20 M-EIGHT (4 1 / 4 “ BORE; 4 1 / 2 “ STROKE; 11.3:1 FLAT-TOP) 0912-0837 Repl. rings $61.95 $43.40 $34.70 113” KIT FOR 07-17 TWIN CAM (4 1 / 16 “ BORE; 4 3 / 8 “ STROKE; 10.6:1 DOMED) 0912-0841 Repl. rings 48.95 34.30 27.40 MONSTER BIG BORE PISTON KITS •Top-quality piston kits feature superior ring seal, bore compatibility, quiet running and longer lifespan •M-Eight 139”/143” pistons have line-to-line coated skirts for zero install clearance •High-tech manufacturing ensures greater operating strength and lower expansion at high temperatures •High-tension compression rings with 3mm oil scrapper rails •Offset pin design for smoother operation •Replacement rings sold separately; ring set is for a single piston •Made in the U.S.A. NOTE: Piston kits are intended for use with Revolution Big Bore Kits only. NOTE: Not recommended for use with cast-iron/ductile-sleeved cylinders. SUG. DLR. SALE PART # DESCRIPTION RETAIL COST PRICE 127” KIT FOR 99-17 TWIN CAM (4 1 / 4 “ BORE; 4 1 / 2 “ STROKE) 0910-3650 Piston kit $409.95 $287.00 $229.60 117” KIT FOR 99-17 TWIN CAM (4 1 / 8 “ BORE; 4 3 / 8 “ STROKE; 11.2:1 DOMED) 0910-2768 Piston kit 409.95 287.00 229.60 107” KIT FOR 99-06 TWIN CAM (3 15 / 16 “ BORE; 4” STROKE; 10.5:1 DOMED) 0910-2659 Piston kit 409.95 287.00 229.60 90” KIT FOR 91-20 XL (3 7 / 8 “ BORE; 3 13 / 16 “ STROKE; 10.8:1 FLAT-TOP) 0910-2658 Piston kit 409.95 287.00 229.60 600CC KIT FOR BUELL BLAST (3 7 / 8 “ BORE; 10.5:1 DOMED) 0910-3655 Piston kit 233.95 163.80 131.00 0911-0032 0912-0837