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Re: engine tech vortec heads
They have a great chamber design. They take less overall timing than non-Vortec heads. Be careful with some of the overseas imitations as they don't have a true Vortec chamber or intake port. Due to the intake port design, you may need a Vortec specific intake.
STV? I'm next door in QC.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4
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