Page 36 of Mallory Ignition by Prestolite Performance

distributor accessories distributor drive gears alloy steel distributor drive gears for cast cams mallory distributor gears are precision machined from alloy steel in our factory to exacting original equipment specifications special attention is given to the heat treating requirements of each gear to assure the proper hardness giving trouble free service when used with proferal billet hydraulic and mechanical flat tappet and selectively austempered ductile iron billet hydraulic roller tappet camshafts available for mallory original equipment and other distributors for use with cast flat tappet hydraulic/mechanical cams and austempered ductile iron roller cams drive gears eng yr cyl engine application buick 1967-76 v8/rh 400,430,455 1961-80 v8/rh 215 300 340 350 1962-87 v6/rh 198 225 3.8l/231 3.0l 4.1l chevrolet 1955-96 v8/rh 262-454 502 includes 348 409 and tall block 1996 v8/rh gm performance drce-2 engines 1955-96 v8/rh 262-454 502 reverse rotation engines 1979-93 v6/rh 3.3l/200 3.8l/229 4.3l 1963-89 l6/rh 194 230 250 4.8l/292 1949-62 l6/rh 216 235 1962-65 l4/rh 153 ford motor company 1968-95 v8/lh 351c 351m 400 429 460 1968-95 v8/lh 351c 351m 400 429 460 reverse rotation engines 1958-76 v8/lh 332 352 360 390 406 410 427 428 1958-76 v8/lh 332 352 360 390 406 410 427 428 reverse rotation engines 1969-95 v8/lh 5.8l/351w 1969-95 v8/lh 5.8l/351w reverse rotation engines 1981-95 v8/lh 5.0l/302 1981-95 v8/lh 5.0l/302 reverse rotation engines 1962-80 v8/lh 221 255 260 289 302 1962-80 v8/lh 221 255 260 289 302 reverse rotation engines 1982-87 v6/lh 3.0l 3.8l 1972-84 v6/rh 2600cc 2.8l/2800cc 1974-82 l4/rh 2.3l/2300cc not hsc 1971-74 l4/rh 2000cc oldsmobile 1964-80 v8/lh 330 350 400 403 425 455 pontiac 1955-81 v8/lh 301 326 350 389 400 421 428 455 shaft outside gear inside diameter 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.491 0.531 0.531 0.467 0.467 0.531 0.531 0.531 0.531 0.467 0.467 0.531 0.467 0.531 0.467 0.491 0.491 partially drilled steel gear part no 29414 29413 29413 29416 29417 29416 29415 25096 29415 29420 28653a 29419 24903a 29421 28714a 29421 28714a 29418 28034a 29421 28216 29436 28216 29423 29437 pre-drilled steel gear part no 29416pd 29416pd 29420pd 29419pd 29421pd 29421pd 29418pd 29421pd tech tip mallory recommends using partially drilled distributor drive gears when replacing an existing gear the gear is drilled through one side only slide the gear onto the distributor shaft and use the hole in the gear and the hole in the distributor shaft as your drill guide drilling the hole through the remaining side of the gear in this manner insures the best possible fit 34

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