Call Our Support Line
24 Hours / 7 Days a Week!  
Same Day Shipping Before 11 PM ET
My Cart
Shop By Vehicle
Shop By
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories

Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates

Crane Cams 138591

Mechanical Roller Camshaft 1967-95 Big Block Chevy 396-454

Crane Cams 138591
Representative Image
Product images may differ from actual product appearance.


jegs shipping
FREE Shipping
Estimated ship date 02/14/18 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Crane Cams 138591 Mechanical Roller Camshaft 1967-95 Big Block Chevy 396-454 $412.03
Mechanical Roller Camshaft
  • 1967-95 Big Block Chevy 396-454
  • Gross Lift: .775"/.723"
  • Advertised Duration: 324°/332°
  • RPM Range: 4800-8200

  • Crane Cams 138591 Details

    Big Block Chevy

    Competition only, good upper RPM HP, single 4- bbl, Comp. Elim., 427+ cu.in., strong mid range for 540+ cu.in. Super Gas and Super Comp, auto transmission w/race converter, 13.0 minimum compression ratio advised.

    Grind Number: R-284/456-2S1-10
    Operating Range:4800-8200 RPM
    Duration Advertised:324° Intake / 332° Exhaust
    Duration @ .050'' Lift:284° Intake / 292° Exhaust
    Valve Lift w/1.7 Rockers:.456'' Intake / .4254'' Exhaust
    Max Lift Angle:105° BTDC Intake / 115° BBDC Exhaust

    Designed for operation at ranges that can exceed 10,000 RPM, mechanical roller cams represent the ultimate in efficiency. While a large number of mechanical roller cams are used in purely competition applications, Crane Cams does manufacture less severe roller grinds that are designed for high performance street engines that have higher compression or power-adders. For best results, valve lash must be checked and set periodically.

    Items You Need

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List