I just ordered Dart Pro1 Heads

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Apr 1, 2009 | 01:46 PM

#16

JAKEJR

Registered User

Joined: Apr 2007

Posts: 549

From: Lancaster, Texas

Quote:

Originally Posted by blown94

personally i dont see the benefit in these vs LE stage 2's with some better springs? if the combustion chamber was larger, then they would be a good choice for some, but my cnc ported stockers are 54 cc with 2.02 1.6 valves flow a little better. I think for a tad more you could do better, in my opinion.

Why would you want larger combustion chamber, to lower CR?

What would be better for a tad more?

Thanks,

Jake

West Point ROCKS!

Apr 1, 2009 | 02:02 PM

#17

reamo04

Registered User

Joined: Aug 2006

Posts: 3,705

From: Kansas

Quote:

Originally Posted by blown94

because the best ported stock casting still can barely keep up with the out of the box dart 215s. Once you order your LE2s and want more power, you can get them ported to an LE3, sure....but what happens then when you want even better heads? Then you have to break down and get after market heads......so why not save the money and get those aftermarket heads first?

Apr 1, 2009 | 02:59 PM

#18

boosted-lt1

Registered User

Joined: Jan 2001

Posts: 657

From: Farmington Hills, MI

Has anyone seen what a fully ported set can do? Either on a flow bench or dyno/track times?

Quote:

Why would you want larger combustion chamber, to lower CR?

Yeah. Most blower/turbo guys shoot for 8.5-9.5 SCR depending on setup. You can run a huge dish piston but that can only drop you so far.

-Scott.

Apr 1, 2009 | 03:07 PM

#19

JAKEJR

Registered User

Joined: Apr 2007

Posts: 549

From: Lancaster, Texas

Quote:

Originally Posted by boosted-lt1

Has anyone seen what a fully ported set can do? Either on a flow bench or dyno/track times?

Yeah. Most blower/turbo guys shoot for 8.5-9.5 SCR depending on setup. You can run a huge dish piston but that can only drop you so far. -Scott.

I just finished doing a search on this Forum and saw a post, I believe it was Bret's, that over 300 cfm flow has been seen. You'd have to go back to last year (or maybe 2007); I forgot which year it's in. I do recall it was a thread that many pages of responses, though. i wish, now, I had book-marked it.

Re: the chamber size; I didn't realize you were considering a force feed application. In that case, yea, I can see why you'd want a larger chamber.

Jake

West Point ROCKS!

Apr 1, 2009 | 03:09 PM

#20

JAKEJR

Registered User

Joined: Apr 2007

Posts: 549

From: Lancaster, Texas

Quote:

Originally Posted by Syl538

Jegs has them for $543 each. Part number 11111111L. I called summit racing and they price matched them. $1080 pair. The only thing i dont like is the valve spring its a single spring: 1.25 O.D. and 110 seat pressure, .520 max lift.

So that price is for two complete heads, right? With valves, springs, etc.?

I'm going to do a Search on JEGS' site now.

Jake

West Point ROCKS!