This hydraulic roller lifter-retainer kit can be used on all 454ci, and 502ci Gen VI engines that are machined for hydraulic roller lifters. This kit includes 16 of P/N 17120061 roller tappet, 8 of P/N 12551397 tappet guides, one of P/N 12551399 tappet guide retainer, and four of P/N 9440224 retainer bolts. For single service replacement use part numbers above.
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