It makes the kit a "No-Machining Bolt-In Kit" for all Ford 3.8L engines. Position the rocker arm(s) over the push rods, then install the rocker arm … Place the valve cover over the new gasket. For instance, a 1.5:1-ratio rocker arm will move the intake or exhaust valve 1.5 (1 1/2) times the amount of lift delivered by the camshaft. Applications with an aftermarket (reground) camshaft usually require longer pushrods. Part Number: CSP-S40018 Not Yet Reviewed The cost can vary greatly depending on the type of car. A valve rocker arm replacement is an important engine service. Fig. The higher the ratio the rocker arm has the more lift it will provide, but that isn’t always a good thing. For each valve, rotate the crankshaft until the valve lifter rests on the heel (base circle) of the camshaft lobe. This part will redirect the force from the lifter to open the valves at the right moment, ensuring your engine is up to its optimized speed and rhythm. The rocker arms in the 3.6L look like something out of a Legos box. Mine had 350 miles when I first noticed and 400 when I took it in. Many V6-90s are called Vortec engines by GM, but not all have the good Vortec cylinder heads. It offers an adjustment range of -0.020 to +0.035" from stock rocker height. Pre- 1977 models used a slotted pedestal cast into the head to keep the rocker arm aligned with the tip of the valve, while later 5.0 351W engines used a stamped steel guideplate under the rocker arm fulcrum to align the rocker arm. Install the bolts and tighten them with the socket and ratchet. The '96-and-up V6-90 head should have the true Vortec-style … Rocker Arms, Full Roller, 1.8 Ratio, Pedestal Mount Style, Non-adjustable, Ford, 232, 238, 245, 256, Set of 12. ... 2.7L V6 Turbo Lariat • 52,000 miles West Hollywood , CA 90069 . Install a new valve cover gasket on the cylinder head. First of all I did a search and nothing came up. The rocker arm ratio that you typically see from 1.5 to 1.8, depending on the engine, is based on a relationship that is possessed by the two halves of a rocker arm. 1 Posts . A rocker arm’s ratio refers to the amount of movement that is transferred to the valve side of the rocker arm in comparison to the pushrod side. Being a retired ME, I can understand that engineering has progressed with FEA and other tools for design but these parts look like they should be stamped with "Singer Sewing Machine Company" on them. These rocker arms used a fulcrum or “sled” in conjunction with a bolt to secure the rocker arm to the head. 2: Rocker arm assembly - 5.0L and 5.8L engines ... What are the torque specifications for a 3.5l v6 1995 ford tarus rocker arm. Install the new rocker arms and torque the nuts to 22 foot pounds with the torque wrench. Discussion Starter • #1 • Nov 24, 2018. Oct 25, 2020 . my rocker arms were replaced for the exact same reason. 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