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Influencer Pick Howards Cams 122521-15 Bbc Hydraulic Flat Tappet Gadget [jeTMINHv]

$43.99 $140.99 -69%

This Influencer Pick Howards Cams 122521-15 Bbc Hydraulic Flat Tappet Gadget [jeTMINHv] Camshaft fits 396-502 cubic inch Mark IV Big Block Chevy engines from 1965-1996. Howards designed this cam for street/strip use, and it is excellent in performance & marine applications with a

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Influencer Pick Howards Cams 122521-15 Bbc Hydraulic Flat Tappet Gadget [jeTMINHv]

This Influencer Pick Howards Cams 122521-15 Bbc Hydraulic Flat Tappet Gadget [jeTMINHv] Camshaft fits 396-502 cubic inch Mark IV Big Block Chevy engines from 1965-1996. Howards designed this cam for street/strip use, and it is excellent in performance & marine applications with a fair idle. A 9.5:1+ compression ratio, lower rear end gears and a 2000+ stall speed torque converter are highly recommended.

Influencer Pick Howards Cams 122521-15 Bbc Hydraulic Flat Tappet Gadget [jeTMINHv] Camshaft Specs:

  • For Big Block Chevy 396-502 engines from 1965-1996
  • Basic RPM Range: 1600 to 5600
  • Valve Lift Intake: .504
  • Valve Lift Exhaust: .504
  • Intake Duration: 275
  • Exhaust Duration: 289
  • Intake Duration at .050”: 221
  • Exhaust Duration at .050”: 235
  • Lobe Separation: 115
  • Intake Centerline: 111
  • Firing Order: 1-8-4-3-6-5-7-2
  • Recommended Lifter Set: 91111 Performance
  • Recommended Premium Lifter Set: 91116 Direct Lube
  • Recommended Valve Springs: 98529
  • Recommended Valve Spring, Retainer and Lock Kit: 98529-K31
  • Made in the USA

Notes: Stock (O.E.) valve springs can NOT be used.

Howards Cams designed this Flat Tappet Hydraulic camshaft for high performance on the street and on the drag strip.

Howards Hydraulic Cams – From mild to wild, they are the ultimate in performance!

What Our Customers Say

January 28, 2026

Absolutely no complaints!

A great tool that is so very easy to handle.

- Teagan X..

January 28, 2026

Absolutely no complaints!

A really good quality and a very solid product.

- Lois N..

January 28, 2026

Absolutely no complaints!

This is a very, very, very good product.

- Yvonne S..

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