Ls engine heads

Of course, in my day, they were already long gone off the showroom floor and Detroit was comparatively in a performance slump, which only added to muscle car popularity.

US John. Item added to your cart. View my cart Check out Continue shopping. LS Performance Cylinder Heads. Hydraulic Roller 4. Solid Hydraulic Roller 4.

Ls engine heads

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For a street car, this design means excellent throttle response, torque and average power. Dyno tests have proven that comparable aftermarket cathedral port heads can match a rectangular port in peak power, while proving much more impressive below the curve. For road racing, a cathedral port is ideal, and has even proven to be quite capable in drag racing with an altered valve angle and larger runner sizes. There are changes throughout the model years, which are indicated with various casting numbers last three digits are the part number. Though no longer produced by GM, all versions are fairly abundant used and work with any factory or larger bore.

Ls engine heads

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Valve Spring Kits. Retainer Material. For whatever reason, no one ever called it a small block Chevy, a 5. By Greg Jones Feb 13, Clearance - Unopened. Cold Air Kits. Oil Pan Gaskets. Casting Style. Billet aluminum has a lower yield strength or higher modulus of elasticity, meaning it will flex, or absorb energy easier under tension or stress than cast aluminum, without incurring permanent damage. Misc Accessories.

Of course, in my day, they were already long gone off the showroom floor and Detroit was comparatively in a performance slump, which only added to muscle car popularity.

Valve Seals. These heads require either custom pistons or valve notches in existing pistons where possible, take custom shaft mount rockers with the longest fulcrum length possible on a LS and custom valve lengths compared to other castings. LS3 lightweight, hollow stem intake valves can be cut to fit the seats, and better valve springs are a necessity for high RPM. Aside from the material, combustion chamber size and port style, the valve size and weight can differ, and the valve angle is different on certain heads, as well as details such as valve cover bolt location. With this in mind, when setting out to make the most powerful Inline LS head on the market, we took an unconventional approach. Yeah so did we, especially in such a critical area for head gasket sealing. Nitrous Kits. And it was no dyno queen either. Header Gaskets. Hemi MDS Conversion.