While there are several head casting variations with different ... although other cars equipped with the best Chevy 302, 327, ...

Hot Rod recently assembled an economical 0.030-over 350 Chevy based on a Coast Motor ... RHS HeadsOur prior experience with GM Vortec heads has been with casting No. 10239906, whose intake ports ...

The popular small-block Chevy 350 has long been one of the ... With improved engine block and cylinder head casting methods, fuel delivery systems, and electronics, the newest SBC variant ...

The GM Performance Parts PN 12499529 350/290hp engine ... made for the small-block Chevy. The 906 and 062 Vortec heads (referred to by the last 3 digits of their casting numbers) feature raised ...