iamdub
Full Access Member
So the 799 heads would be a direct bolt On? No swapping the pushrods or valve springs etc?
Direct bolt-on. You'd only have to mess with the springs and/or push rods if you changed the cam or had the heads decked. Keeping it all factory, it's a direct swap. Don't be expecting a huge power increase. You'll mainly feel a little bump in TQ in the low- and mid-range. If you wanna splurge, you can have them milled and ported a little, but then you're really close to entry-level CNC head price range. This sort of swap is more of a "found a deal on some 243/799s and my 317s were already off" kinda deal.