Swirl port SBC heads

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 ==History==
-The SBC swirl port heads came to be in about 1987. They were used with TBI (throttle body injection) EFI (electronic fuel injection) applications in trucks. Their reason to be was for making good low rpm torque while getting acceptable mileage. This design was first used during the mid-1980s on the GM 2.0L inline four used in the Cavalier - usage of the swirl port was later used on the 4.3L V6 motor in 1985.
+The SBC swirl port heads came to be in about 1987.
 ==Casting numbers and ID==

Revision as of 11:00, 8 January 2018