17K views · 181 reactions | GM 427 LS7 Stroker Motor. The crate motor is rated by GM at 570 Hp, but what does it really make? Full dyno day video is up. Watch as we spend too much time trying to coax 1 more hp out of the combo! Full vid is up-link in comments | Richard Holdener | Facebook
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17K views · 181 reactions | GM 427 LS7 Stroker Motor. The crate moto…
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