347 Head Recommendation

[62Cobra]

I have been running a 347 with 302 heads for about 2 years. The heads have been ported and refitted with 194 intake and 160 exhaust. My local engine builder said those heads just do not flow well no matter what you do to them. He stated the intake valve is too close to the side wall to get very good flow. Anyway, Im looking to upgrade and need an aluminum or iron head that is identical in size and header bolt hole configuration. Anybody got any recommendations for a new head that will flow better and/or intake valve size better than a 1.94? Right now I'm running a 600 CFM vacuume secondary Holley which I have heard is fine for the set up I have but I want more power on the upper end without loosing all this great torque on the bottom. My cam is set up is Comp Extreme Energy 274 with .520 intake lift on flat tappit roller rockers, and all sucking through an Edilbrok performer.

[stretch]

afr 185s will make it come alive !

[bobcowan]

Almost anything will be an improvement over what you have.

Cast iron heads can be had for a pretty reasonable price from a variety of places. If you go with alum, you can probably raise the compression a bit.

I've used Edelbrock parts on a few projects over the years, and they are good bang for the buck.

AFR makes good power. But some of the pro builders (like Gordon Levy) have reported some quality control issues over the years.

I'm currently using a set of Dart Pro-1 alum heads. They are priced well, and work good out of the box. They make over 500hp on my 427 stroker. The exhaust port is raised 1/8", so you'll have to look at your set up to see if the fit. On my FFR, there's no clearance issues at all.

[trctrdrvr]

I'm running these on mine



D&D Motorsports - Engines, Suspension, Brakes, Steering, Drivetrain, Motors, Marine.