I put the Edelbrock's on my 440 right out of the box.Have a mopar 590 cam Crane 1.6 roller rockers and a 6bbl.Been on car for 5 years and everything still works great.car has run 11.53@117 at #3895.

Look for a good set of used Eddys, or something like it. They're always for sale because of guys stepping up..


Chris..

Chris is right! Some guys will be stepping it up at the end of the season and there will be some good deals on heads!

I believe 10.5-11.0 compression will work at 5000'. May be a bit high if you ever drop down in altitude. For the cam, I'll suggest something in the range of 230 degrees intake duration at .050". Hot enough for good power and sound but not a pain to drive. Comp and Hughes both have good offerings in that range. Assuming you want a hydraulic FT the Comp "Extreme Energy High Lift" or Hughes hydraulic FT would fit the bill. Both are fast rate cams and would need good adjustable rockers. A link to Mancini where both are advertised is below. 230 degrees at .050" would be borderline for power brakes.

As posted above, an engine builder is a great resource to help pick a cam.


http://chucker54.stores.yahoo.net/hughesengines.html

if it was my money it would be standard port procomps now. get the rockers you need now. if the need for speed happens to you like it does to everyone else, you will already have what you need. just send the heads to get maxed out and your saving thousands

You can't buy the stealths bare anymore , a lot has changed in 5 years .

As far as those rockers , NEW Cats MAY be better??? They have/had an issue with the shaft that the roller tip rides on being brittle and breaking, the design of the rocker can pop the valve locks free and you'll know what happens next. One place to NOT SKIMP is on rocker gear, their failure can be very expensive to repair.

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I talked with 440 Source this past Friday and They do sell the Heads bare for $750

Brian

The Engine works heads looks like re-packaged pro-comp heads, which are a copy of the Edelbrock Victor heads.
These heads have smaller 72cc chambers than the Edelbrock RPM or 440 source stealth heads 80-84cc chambers, so they may bump your compression to about 11.5:1 (if using a flat top like the KB237, or TRW2355.)
The RPM/stealth heads are about 10.25 to 10.5:1 compression with the same pistons.
The above compression ratios assume the block is milled to zero deck, and uses a fel-pro 1009 head gasket (9.9cc.)

The pro-comp/Victor heads also require 0.600"+ offset intake rocker arms, and a valley tray.

The RPM/Stealth heads are closer to a bolt on, using stock rocker offsets, and you can use a stock intake / valley pan gasket.

The RPM heads may flow a bit better out of the box, but the angled spark plugs can also be a problem with some headers and exhaust manifolds.
The Stealth heads have straight/stock location spark plugs, so that should not be an issue. The Stealth heads also look a bit like a stock head when painted.

All the heads mentioned require reduced wrench size head bolts or head studs, and 3/4" reach spark plugs.

The pushrod clearance needs to be checked with any of these heads. Depending on the rocker offset and ratio, the pushrod holes usually need to be enlarged for clearance.

Thanks for all the responses. Plenty of good information here and I hope it helps others as much as it has helped me.