Thread: Long travel hyd. roller lifters?

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you will have to go with retro -fit hyd lifters . i have used the feds many times but they were no more than 612 lift. the tall bodys are for mark 6 block and the dart blocks have taller lifter bore housing on the block and the stock gm roller lifters will not take that much lift with the stock gm stuff so they need a tall body lifter .on the lifters comps or you could use any of them howards -crane -crower -morel .you will have to run retro -fit push rods. if not stock heads then custom size pushrods.on valve springs the big races stuff .PSI springs or isky manley. for your cam the howards look at #9832 140@1.940 or 140#98611 is spring sets up at 1.880 135lbs one thing if you run rollers rocker and aftermarket heads then you will need custom length push rods