so 500 cid would be good between 500 to 600 hp and 575 to 625 lbs ft. Which is gonna need a head that flows between 270 - 340 cfm to hit those numbers.
Disagree with the head flow numbers for projected HP out put —- BUT —- always afford the best cylinder head you can for the given goal and engine size to meet the potential your looking for.
This does not mean afford Predator heads for a 11 second ride.
Also a cylinder head that flows said amount in
theory, trying to meeting the goal, and doesn’t have the valve lift to take advantage of the heads capability is just wasting parts, time and money. Might as well get that ported Predator head to power the station wagon on a cross country trip without towing a trailer.
(Don’t forget the 2bbl. BBD for mileage now!!!!)
