MARK WHAT ABOUT THE 088 casting rect port heads? Are they any good? They can be bought new,bare,cut for 2.25/1.88 FOR between $400- $500 From a guy here in Indianapolis. of coarse they are still cast Iron and weigh 75lbs each.

P.S. I would do my homework before you buy new heads if you go that route. There are lots of cheap aluminum heads out there. It is tempting to go that route because the price sounds too good to be true. I have no experience with them but they do not have a very good reputation so ask people who have used them.

496
 

The 088 is similiar to the 188/990 and would be a step up from the 049/781 because of the rectangular ports extra flow potential and the bigger valves.
They take a diffferent head gasket than the older heads, but otherwise everything interchanges. Good suggestion. Should get a 496 up to 6500+ before they stall out. A custom grind roller cam can make or break the combination with these heads.

How much flow can one get from the 088 heads?

http://speedtalk.com/ go here. That board is FULL of professional engine builders. LOTS of very good info there. not saying there aren't smart people here,nor am I trying to run you off,just saying,lots of those guys do this for a living. :)

Re: 496 building advice needed
 

They key to me is that you said stock heads for a couple of years. That means you plan to rebuild and next time build a bigger / more hp motor. If I were on a budget I would go with a set of aluminum heads and intake out of the box for now. They will flow better than the iron heads already, but you have lots of room for improvement later. If you spent money on iron heads now it's just gonna be a waste. Save yourself a bunch of money in the long run and go with a good set of heads now.

Re: 496 building advice needed
 

great advice again! always found it cheaper to buy the correct part(s) the first time!!!!!!!!!!!! if it takes longer to get to the track, oh well....you will be pleased with the results in the long run! :wink:

Yes I agree. We raced jr dragsters so Im well aware of buying good parts from the get go. I was planning on building a stout rotating assembly and then upgrade the heads down the road. Can you find good aluminum heads (used) for 600-800$$? I have a friend that can work the stock heads but once again I dont want to get it out for the first year and wish I would have spent the funds on bigger better heads. Can I run 14:1 compression with stock heads and keep those pistons with aluminum heads? make sense? thx ... the more info and advice you can give me the better..... thx MM

I know this is more than you were looking to pay for a set of heads, but given the extra parts that come with these heads the deal may be pretty good. It's a listing on RJ in the engine section. I think they would work o'k with the 496.

JMO

Zip.

http://www.racingjunk.com/category/1...325-HEADS.html

yes it is a bit more than I want to spend bu that is a descent price.. What is the max CFM you can get out of stock heads? and do you know the max lift on stock heads? Thx MM

Abit off the subject but what is the max bore for a BBC... Found a block that is 4.382... I believe that is about the max.... You tell me?