peej410 Posted April 1, 2004 Share Posted April 1, 2004 my friend has a set of heads for sale that we bought at a swapmeet last year. dart alum 215s, fully ported, rebuilt 0 miles, titanium 2.1 intake 1.6 stainless exhaust, double valve springs, unknown retainers locks. now providing i take them to my machine shop and they check out they are engraved "bill mitchell" id be putting these on a stock shortblock for now i know they are pretty big for stock but lemme know what you guys think. he wants 600 for them -pete id run a suitable cam like a summit 1105 but the rest of the motor would be stock. might do comp cam pro magnum rockers if im doing these heads not sure though Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 2, 2004 Share Posted April 2, 2004 600 bucks is a decent price if they are in good shape. Have them bench flowed and check spring seat pressure etc.. Mike Quote Link to comment Share on other sites More sharing options...
Pyro Posted April 2, 2004 Share Posted April 2, 2004 215cc heads on a 350 are good for high hp and high rpm (good drag racing head). You will lose some low end torque and throttle response using 215cc heads (not so good for the street). A 383 would make better use of a head that big. Or a 11:1 cr 350 with a 250 degree cam (@0.050) and a shot of N20. However, 600.00 is a good price. But it all depends are what you are looking for; drag racing only, street/strip, street only??? Those heads will most like require longer head bolts, head bolt washers, and longer push rods (+0.160"). I would use at least 10:1 cr with an aluminum head on the 350. Titanium valves don't last as long as stainless valves (good for racing, bad for the street). FYI, 200cc dart iron eagle heads (straight plug, 64cc chambers) cost 1000.00 new from Summit and would make a better street/strip head. Quote Link to comment Share on other sites More sharing options...
peej410 Posted April 2, 2004 Author Share Posted April 2, 2004 hmmm well i will almost definately be racing quite a bit but this will be a pure street car. what would a setup like the one you mentioned with a 250 degree cam make for power? or should i just punch it into dd2000?? Quote Link to comment Share on other sites More sharing options...
Pyro Posted April 2, 2004 Share Posted April 2, 2004 I would guess it would make a lot. But as long as the rest of the engine is setup right (intake, carb, ignition, compression, and exhaust) I'm running a 242 duration cam (comp cam 292H), full length headers, dual 2.5 inch exhaust, performer rpm, 11:1 cr, 200cc dart iron eagle heads, holley 750, msd 6AL, slicks, R200 3.90, and a GM T5 5spd. And my 240 can run 120 mph in the 1/4 mile without N20 and on pump gas. This means, I'm making about 384 hp at the wheels since my car weighs 2855 with me in it. The heads you are talking about would most likely make another 20hp over my iron eagle heads. When I use the N20, I can hit 134 mph in the 1/4 and 110 mph in the 1/8 mile (10.7 and 6.9 seconds). But diffs and stub axles require frequent replacement under N20 conditions. Bummer.. Quote Link to comment Share on other sites More sharing options...
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