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beat-up OEM cast iron yoke
It also features nitrous bosses and rear water ports
The LS (Gen3/4) platform has many design benefits over the earlier SBC engine designs
They're 40 percent lighter
Stay on track with PCEs 9 in
Chevy GM LS3 Shaft Mount 1.7 Ratio Super Street Aluminum Rocker Arms beat-up OEM cast iron yokeSpeedmaster roller rockers are available in various ratios, so you are good to go. They feature greater strength and durability, capable of withstanding valve spring load.
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