Rect converted to Oval Port

[Texas-Duster]

Question came up today from a client of ours. We've never performed the conversion but can it be done?

Oval Port W2 head to a rect port 6-bbl intake? I know the bolt pattern is off but has anyone performed this with any success, if ever so slightly?

[rumblefish360]

It can be done. Dick Landy used to do it and redrill the intakes.

[Texas-Duster]

Originally Posted by rumblefish360

It can be done. Dick Landy used to do it and redrill the intakes.

Thanks. Figured as much. Would be a sort of cool build doing that as the engine is going into a 67 Power Wagon from an Alaska State Agency. The guy bought it in Colorado and it came with a thick wall 318. We bored it out to 4" bore, sticking a 4" stroke in it with triple deuces on top. Problem is he wants to run a our W2 heads with shafts as they'll help out with the torque on this monster 2.5 ton truck.

[rumblefish360]

You should contact DLI on what the deal is with them before anything is done.

[hotrod7043]

The head is a different port config than the intake so i gotta be more than a redrill, better call Landys , they still open?Port match be really mismatched.If Landys isnt available,try Chapman heads.

[rumblefish360]

Redrilling the intake to a wider W-2 pattern is the easy part. Ports are in the same location, but that shape difference...WOW! That has got to be some work effort in that!

The W-2 also has a dual plane from MoPar that is similar to a OE 4 bbl config.

[pishta]

I bought a Street Dominator at a swap meet and I was so excited to get it , I didnt even check the port configuration, it was for a W2! I bolted it up, used a 2 part epoxy to blend the ports as good as I could and used regular gaskets! It worked, didnt leak and I ran it for about 2 months before I traded it and a performer for a rectangloe port SD. I didnt feel much difference, but mileage went up about 2 mpg...?