W2 heads on a 318

ciamcoop said
Sorry if I made it unclear. I was planning on 550ish with the 408. It'll take a bit to get that from the 318, but if it's possible why not. I'm not afraid to spin it to get there. I was mainly wondering if the w2s are worth even the thought of putting them on the 318. I guess enough compression, cam, and rpm they'll be fine.

ciamcoop said
Yeah that's the plan.

What kind of power and revs will the 340 rods take? They've been double shot peened, sized, and bushed with arp bolts.

Well ciamcoop, I'm not sure where the factory will give up. There pretty darn good.
As far as a W2 being a "Budget head," I'm not to sure that is an accurate route vs. Edelbrock heads. I got my 59*, W2's on a close out from Mancini racing. Under a grand delivered. At that price, they become arguably cost exceptable. There draw back, besides weight, is valve train. It is roughly double that of an LA heads.

IF, (stress point!) I can get the rest of the bare head done inexpensively, I'll have done well. Then porting on top of it is about the same cost BUT! I will be ahead with a higher performance ceiling over Ported Edelbrock heads. The W2's do not do better than Edelbrocks OOTB.

Now to get off my soap box, I'll say, if you already have them, then run them.
And don't look back. Just GO!