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Old 08-10-2009, 10:01 PM
if it can go wrong it will
 
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041 chevy heads....any good?

Im building a 355 block works already done its an old 010 block ive had for a while and already had a set of 041 heads and cant find much info on them.Are they worth punching out and machining or not worth the time and money. Not looking for but about 450hp out the motor will these heads do it?

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Old 08-10-2009, 10:03 PM
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You got a leaky spark tube...
 
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If you want 450hp plan on stroking it and buying a set of Iron Eagle 200cc heads or something similar to that. It will make reaching your goal a lot easier.
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Old 08-10-2009, 10:36 PM
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1.21 giga-watts???!!!!
 
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They are probably one of the best "fuelie" type heads out there. I have them on my Camaro and I can't wait until I can afford to upgrade to Bowtie Vortecs or Darts. 450 Horses with these heads? If you put a blower on it!
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Old 08-10-2009, 11:57 PM
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And nitrous.
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Old 08-11-2009, 04:33 AM
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Quote:
Originally Posted by Short_box
Im building a 355 block works already done its an old 010 block ive had for a while and already had a set of 041 heads and cant find much info on them.Are they worth punching out and machining or not worth the time and money. Not looking for but about 450hp out the motor will these heads do it?
While these heads will certainly be capable of making 450 HP w/some work, they are old-tech, small chamber heads that have nothing really going for them.

IMO, for OEM heads, you would be better off using Vortec heads with a couple cheap mods to let them handle higher lift- but the Vortec heads require a dedicated intake manifold.

Aftermarket heads will obviously get you there, too.
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Old 08-11-2009, 06:00 AM
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As said nothing going for them EXEPT 1.you already own them.2. They are capable of easily making your stated goal with a little bowl cleanup.3. If advertised on ebay under imca they would probably bring enough to buy vortecs or a real good start on some darts.These heads are gold in stock car classes that don't allow vortecs or aftermarket heads, highly sought after.
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Old 08-12-2009, 11:29 PM
if it can go wrong it will
 
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Would anyone be interested in a trade.....I dont know much about machine work but these have been cleaned up and something bout where the valve bosses have been ground down(was told needed to do that to run 1.6 rockers with .510 lift cam) but just started it tonight and dont have the thump i want and also was told those heads wouldnt hold much more cam....Im new at this bare with me
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Old 08-13-2009, 08:10 AM
How fast is fast enough?
 
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What cam do you have?
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Old 08-13-2009, 09:25 PM
if it can go wrong it will
 
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Comp cam .501/.501 lift 292 duration.....not sure its working with these heads good and i was wrong they are factory 1.5 rockers victor jr. +1 intake holley 750 dbl pump.....slugish on bottom end even with 3000stall think its too much cam?
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Old 08-14-2009, 11:34 PM
if it can go wrong it will
 
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Thanks for that extra info.....ive never degreed a cam and all that and as far as the timing goes i turned the distributor as far as the hei cap would let me and only squeezed 22 according to the timing tape on the balancer what do i do to get more? Im supposed to go to a dyno at the strip tomorow they are having a special 3 runs for 60 bucks....im new at this and hate watching someone do it and learn id rather be told and do it myself so any more advice i will definatly listen.
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