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ACL 5C3349C H-Series Small Block Chevy Cam Bearings
ACL 5C3349C H-Series Small Block Chevy Cam Bearings

ACL 5C3349C H-Series Small Block Chevy Cam Bearings

Chevy Small Block V8

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ACL 5C3349C H-Series Small Block Chevy Cam Bearings
ACL 5C3349C H-Series Small Block Chevy Cam Bearings
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Part # 9103349
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ACL tri-metal H-Series Duraglide camshaft bearings for S/B Chevy. Standard size only.

  • Use H-series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range.
  • H-Series bearings should be used if contact patterns obtained with P-series parts are too narrow. Contact pattern should ideally cover 2/3 to 3/4 of the bearing surface.
  • If you aren't sure which type of performance bearing to start with, the H-Series will be your best choice.



Bearing Positions:

Front of Engine #1 position

Bearing 3349C Position # 1

Bearing 3347C Positions # 2 & 5

Bearing 3346C Positions # 3 & 4

Some parts are not legal for use in California or other states with similar laws/regulations

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Videos & Articles
  • What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.
  • Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!
  • Speedway Motors Street Tech Kevin recently installed a Gear Drive on the 454 destined for his '54 Belair.
  • To get the longest life and most performance out of your engine, it's important to have the valve lash set correctly. Here we show you how to set valve lash on a small block Chevy using a hydraulic lift camshaft.
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.
  • Picking a proper camshaft for your project can rapidly deteriorate into chaos. So many possibilities. Want a little advice? Click here!
  • Tim M. has tried to stay true to the vintage route, but sometimes, exceptions must be made. For example, the original oiling system's paper element and canister are functional, but an upgraded system will be more reliable.

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