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Roller Rocker advice

This is a discussion on Roller Rocker advice within the Internal Engine forums, part of the LSx Technical Help Section category; yep, his 402 will benefit greatly with a FAST 90/90 yep, women and children first....

  1. #21
    Senior Member mrr23's Avatar
    Join Date
    Jul 2005
    orlando, fl

    dark bowling green
    2000 corvette

    yep, his 402 will benefit greatly with a FAST 90/90

    yep, women and children first.

  2. #22
    Member danziger's Avatar
    Join Date
    Aug 2006
    Chesapeake, VA

    Le Mans Blue
    2004 Z16

    Depending on the flow of those heads a 90/90 would probably be the better investment over rockers. Crane, Comp, YellaTerra, Harland Sharp...they all have cheerleaders and detractors.

  3. #23
    Join Date
    Oct 2005

    Mag Red
    2002 Vette

    One thing I very rarely see mentioned with regards to the stock rockers. They were designed for the stock valve train, with fairly low pressure springs. They have a fairly wide wipe pattern, at least mine did. Some even wipe towards the side of the valve. Now boost the spring pressures and two things come into play. First, guide wear will increase unless you have a narrow wipe pattern, and with higher lift the stocker's wipe pattern gets worse. Second, you lose lift with them with higher spring pressures as they are not very stiff. So you can run the stockers fine, but there are trade-offs in doing so in my opinion.

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