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Old 02-06-2005, 09:19 AM
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Question Ready to buy. Advice needed!!!

Alright everyone.
Im getting ready to buy my heads in about 2 weeks and I have questions 4 ya.
My car is a prostreet Gremlin weighing about 2800lbs or so with me in it and its going to be about 95% street use. Im building a 355ci motor with a 6-71 blower using a 465-485 lift cam(good to about 6 grand). Im running about 6-8-10lbs of boost depending on my starting cr.
QUESTIONS?????
1. Should I run 64cc heads with 8.4-1 comp or 72cc heads with 7.7-1 comp on the street? 64 will net me 6-8lbs of boost.
72 will allow 8-10 lbs of boost.
Im thinking bout getting either the 190, 200,215, or 230cc heads? I have my choice of 2.02, 2.05 or 2.08 valves also. One set is from Dirt track tony and are alluminum and Im not sure if there Generic or not so let me know what you think. The others are all Dart, but are Iron.
Im just not sure on the street what will be to big with a blower. I dont want to kill low end, but Id like to make use of the blower. Its a one time deal, so help me out.
I can get the spring rate changed on any head to match my cam. Thanks, HG

http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

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Old 02-06-2005, 09:28 AM
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HG, you did that same thing last night that I did. I put together a list of E-Bay auctions and sales similar to what you have here.

I woke up this morning and decided that all I did was mess with my original plans by doing that. I'm going to wait another week or two and stick $200 with what I have and get the Dart Pro 1 aluminum heads brand new from Dirttrackthunder.com. $980, free delivery and a name brand company.

As far as the port size. With a supercharger, low end power will be the least of your worries. The deciding factor is your bottom end strength. If you're not revving it much past 6000, stick to 200cc or less. I'd go with less compression right off that bat, you'll be able to use 93 octane without being on the ragged edge and you can bump the boost and use race gas when you choose to.

Just my 0.02.

Larry
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Old 02-06-2005, 11:10 AM
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[QUOTE]Originally posted by coldknock
[B]HG, you did that same thing last night that I did. I put together a list of E-Bay auctions and sales similar to what you have here.

Thats funny Coldknock.

I like the idea of using larger valves in case I ever go bigger time on the engine.

I like the alluminim heads from dirt track tony to, but are they generic? Ever heard of anyone using them??? Tnx, HG
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Old 02-06-2005, 11:29 AM
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I've never seen those heads before. I tried to find some info on the net but it appears there's nothing available about the manufacturer. I e-mailed a guy that bought a set and asked him to give us a review after he gets his ready.

On the valve sizes, remember that the best flowing, out of the box, 195cc cnc ported head on the market uses 2.02/1.60 valves to get the job done. AFR 195s

Larry
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Old 02-06-2005, 12:12 PM
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I agree that a ~200cc runner would be the way to go. I would go with the larger combustion chambers, and then run as much boost as you can and stay on pump gas. Personally, I would not mess with those heads, they seem a little shakey. If you wanted something in that price range, I would go with the iron eagles. If you have the money, I would go with the AFR 195's.

Adam
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Old 02-06-2005, 12:37 PM
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I agree with the 200 as well on a small cube engine like that. Anymore is just a little much unless you really turn some R's which you dont need to do. The guy I got my 230cc Pro 1 heads from has the 200's as well, but they cost a little more for some reason. He does sell them with studs and guide plates so watch for that. Alot of the auctions dont and it will cost you more in the long run. I have bought from dirt track thunder several times with good parts. I was also very happy with my Darts from Yoders. Would deal with both again and probably will some day. Here is a link to Yoders heads. He gets $65 for shipping and insurance which I gladly paid for incase they got dropped or something.

http://cgi.ebay.com/ebaymotors/ws/eB...952542999&rd=1

I would also go with the larger chambers. Proven fact is that an engine will always make more power with lower CR and higher boost than with higher CR and lower boost.

Chris
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Old 02-06-2005, 04:02 PM
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Thanks guys.
Turbo. Do you know anything about these heads that dirt track tony is selling?
http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

I like the looks and his feedback is good, but are they generic?
I may just go with the Dart Iron heads. HG
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Old 02-06-2005, 04:35 PM
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It's worth taking a little more time and save for the Dart Pro 1 heads.
Money well spent and will be better for your motor.
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Old 02-06-2005, 05:16 PM
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Dont know anything about the heads. They look like chinese stuff. As with any of that stuff there is always a gamble.

Chris
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Old 02-06-2005, 06:16 PM
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You guys are right. Id rather spend the xtra couple hundred and have a name brand part.
They say with a set of alluminum heads you can run another point of compression, so should I still get the 72cc heads? I can run 8-10 lbs of boost with them.
Will the 7.7-1 comp make my car run sluggish in town when not in boost?
Im undecided, but Id like the alluminum heads, but cash may make me get the Irons. Either way, Im gettin the Darts though. HG
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Old 02-06-2005, 06:46 PM
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Does he offer these { http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT } in a 72cc version? I like them for the price but the cc is too small. I also like him as a seller, good product, good prices, fast shipping and good return feedback.

Look at these for example>
http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT

They say they have the Pioneer Z-28 +.100" Valve springs & good for .600" lift. Pioneer says these valve springs are only rated to .550" lift. Be careful out there.

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Old 02-06-2005, 06:48 PM
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The 72cc will be good on the street, don't forget the boost will increase with the RPM. You have waited this long to build your car why not wait a little longer and get the aluminum heads.
If anything happens to the aluminum heads they can be welded and repaired.
I waited 2 years to get the motor I have now,
Quality and longevity is in the combination of any motor.
LOL
G
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Old 02-06-2005, 07:02 PM
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Re: Ready to buy. Advice needed!!!

355 as in chevy motor? why not run a AMC 360?
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Old 02-08-2005, 04:49 PM
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Re: Re: Ready to buy. Advice needed!!!

Quote:
Originally posted by ChevelleSS_LS6
355 as in chevy motor? why not run a AMC 360?

Well if I was going AMC Id run a 401 because the parts are about the same price.
I know(somewhat) and like sbc's, so I stuck with it.

I like alluminum, but what would the advantage over a little weight savings be George?
For the xtra 300 bucks, I could get my head studs, rockers and valve covers. Let me know. HG
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Old 02-08-2005, 05:01 PM
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I dont mean to beat a dead horse, but if you are going to spend the money, why not go with the AFR 195's?


Dart pro 1 200cc $1176
http://www.jegs.com/cgi-bin/ncommerc...47&prmenbr=361

AFR 195cc $1325
http://www.jegs.com/cgi-bin/ncommerc...60&prmenbr=361

Yeah, the AFR's are another $150, but for that you get a fully CNC ported head.

Good luck,
Adam
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