How big are the rocker arms on a Chevy?
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What is the torque of a rocker arm?
The torque spec for the rocker arm bolts is 25 ft. Lbs. Now that the cylinder heads are on, it’s time to install the push rods, rocker arms, and pedestals. The torque spec for the rocker arm bolts is 25 ft. Lbs. Skip navigation Sign in Search Loading… Close This video is unavailable. Installing pushrods and rocker arms Watch later Share
What kind of rocker arms does Texas speed use?
Texas Speed & Performance 1.72:1 Ratio LS3 Steel Roller… TSP Steel Adjustable LS7 1.82 Roller Rocker Package w/ TSP… TSP Steel LT1 1.82 Ratio Adjustable Roller Rocker Package w/…
What do the rocker arms on a push rod do?
Traditional push rod engine rocker arms are very simple first order levers, like a teeter-totter. Rocker arm ends move in circular arcs. Thinking of rockers like spokes of a wheel can be helpful, the axle being the rocker shaft or fulcrum point.
Do you need to adjust rocker arms on a Pontiac?
Whether you have decided to stay with the stock type stamped rocker arms or Competition Cams Magnum Rollers Rockers as pictured here, or something far more exotic, you will need to adjust valve lash. Torquing the adjusting nut per the old Chilton’s to 20-25 ft pounds won’t work on any heads that have been milled.
What should the rocker arm ratio be for a gas pump?
For most pump gas street applications, the factory 1.5 rocker arm ratio will be just fine. If you opt for a 1.6 or more rocker arm ratio, be sure to check pushrod clearance. You’ll need to turn the engine a few revolutions to be sure that the pushrod doesn’t interfere with the side of the block or head.
Do you need adjustable rocker arms for aftermarket camshaft?
The next critical factor is, if you’re going to use an aftermarket camshaft, you will need to use adjustable rocker arms. You’ll also need the correct lifters, push rods and valve springs. Having the correct spring pressure for your aftermarket camshaft is paramount.
Do you need adjustable rockers on Edelbrock La?
You’ll also want to check the installed valve spring height as well. Although it is possible to use your factory stock stamped steel non adjustable rockers with the Edelbrock LA heads, Edelbrock does recommend using adjustable rockers with their LA heads.