This roller lifter kit is designed for 1986-and-later engines.
These second-design lifters are used in late-model 350 HO
engines and use a higher checkball spring preload. The kit
includes 16 lifters of P/N 17120735, eight valve lifter guides,
one valve lifter guide retainer, four retainer bolts, and four
retainer washers. This lifter kit plus pushrod kit P/N 12371041
and a roller-tappet design camshaft will convert your engine to
a roller-lifter engine. For single lifter usage, use P/N 17120735.

• Technical Specs: "This roller lifter kit is designed for 1986-and-later engines.
• These second-design lifters are used in late-model 350 HO
• engines and use a higher checkball spring preload. The kit
• includes 16 lifters of P/N 17120735, eight valve lifter guides,
• one valve lifter guide retainer, four retainer bolts, and four
• retainer washers. This lifter kit plus pushrod kit P/N 12371041
• and a roller-tappet design camshaft will convert your engine to
• a roller-lifter engine. For single lifter usage, use P/N 17120735."