Z-Dreamer Posted April 28, 2002 Share Posted April 28, 2002 While surfin I ran across these guys. www.schoenfeldheaders.com/ Click your curser just below the American Flag! Checkout the race header options! Mark Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 29, 2002 Share Posted April 29, 2002 Here's one I'm checking out to get around the steering issue in my '83. This looks like just the ticket http://www.centuryperformance.com/detail.asp?Product_ID=SDH-CC90 Quote Link to comment Share on other sites More sharing options...
Mikelly Posted April 29, 2002 Share Posted April 29, 2002 SuperNova, You sure you want a 1.5 inch primaries?? Those pipes will choke down any significant HP you plan to build with a SBC... Mike Kelly Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 29, 2002 Share Posted April 29, 2002 Well....no I'm not sure and am open to others knowledge. But here's my take. This will be going on a standard mill 350 SBC with mild cam, edelbrock performer intake and a road demon 650 carb. I hope to produce about 300hp. This will be the daily driver and I'm hoping this should fit my needs. From the headers I was going to drop into 3" tubes and then to a Y connecting to dynomax mag race muffler then out to the back and into a dynomax ultraflo muffler. I'm trying to quiet everything down without losing to much hp and I'm thinking this will work. Now, knowing I'm only expecting 300hp I think the above is a pretty doable....I'd appreciate everyones insight as I need to order the last parts soon in order to meet my 'installation window' On another note you might find this interesting reading from the sanderson site regarding collector sizing and hp powerband curve. According to sanderson oversized primarys can cost you hp??? http://www.sandersonheaders.com/letsgettech3.htm Quote Link to comment Share on other sites More sharing options...
Mikelly Posted April 30, 2002 Share Posted April 30, 2002 I'd be careful there... You absolutely need larger primaries for 300HP... GrumpyVette and others can jump in, but I'd bet you'll stand to loose significant HP in running a 1.5inch primary. What head are you planning to run? You want the exhaust ports to match the header intake ports as much as possible, and on a 1.5 inch primary tube, you aren't gonna have much chance of getting good flow with anything other than small exhaust ports. My advice is to atleast look at the 1 5/8th inch units. I used the Flowtech Ceramic coated headers in 1 5/8 inch primary tube design and had pretty good fit on a 383 stroker, although even those had small port sizes for my Dart Conquest heads. If you plan to upgrade your heads later, I'd look at getting the right header now. Several of us are looking into the Rewarder 1 3/4 primary headers mentioned in another thread here... Just my advice, but I wouldn't spend a dime on anything less than a 1 5/8 and send your head-matched header gasket to the maker of the header you are looking at so they can match up the header flanges for you. LOTS of power to be gained or lost in exhaust flow.... And reaching 300HP, you can make or break that number by using the wrong components. Mike Kelly Quote Link to comment Share on other sites More sharing options...
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