When a set of heads have smaller valves that they will not make as much power but could possibly run better times at the track due to better midrange power than a set of heads with bigger valves? I want a set of heads that make great power, but I would be more interested in useable power for the street and strip to run better times, instead of having the highest dynoing heads. Price is an factor..

What would you guys reccomend for me. I want stage 2 heads.

Thanks

 

3 letters TEA

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Krazy98TA:
<strong> 3 letters TEA </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">4 letters-Jeff <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

 

What do you guys think about Absolute Speed stage 2 heads as opposed to TEA?

Does anybody have any feedback on my initial question about the smaller valves?

Thanks

 

I don't think you could go wrong with Absolute the smaller valves will make better mid range power on the stock c.i. motor, big valves work best on the large bore motors. I wanted heads that would do the same thing that you want thats why I ordered stage 2 from Absolute.

 

I have 2.02/1.57" valves in my heads, FWIW...

 

Is MTI and GTP putting up good track times with the stock 346? Would a set up like Absolute Speed have better track times than MTI, GTP? What about track times for TEA?

 

Is MTI and GTP putting up good track times with the stock 346? Would a set up like Absolute Speed have better track times than MTI, GTP? What about track times for TEA?

 

You have hit on a big part of it. It's also how the mixture flows into the cylinder. And compression. And injector spray patterns. And on and on.

"Stage 2" is a term that is only applicable from one set of heads to another WITHIN one manufacturer. One Co's Stage 2 may have 2.02 x 1.57 valves, anothers may have 2.055 (or bigger) x 1.60.

Cartek had a story in GMHTP awhile back where they were running close to 10's w/ 2.02 x 1.57 heads.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by mike#9:
<strong> Is MTI and GTP putting up good track times with the stock 346? Would a set up like Absolute Speed have better track times than MTI, GTP? What about track times for TEA? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm glad you brought this up. So much of the information out there is just flow numbers. Dyno numbers are a little better, but track numbers would really be helpful (keeping all the variables in perspective).

 

Big bores allow for more relief in chamber around bigger valves to allow more flow with them.Port design and size has way more to do with velocity into cylinder than valve sizes do. You really cant overvalve a cylinder, but you can definitely over Size port and hurt performance. I have shifted heads around on flow bench bore and it doesnt have the dramatic effect on port flow that people think it would. FWIW

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong> Big bores allow for more relief in chamber around bigger valves to allow more flow with them.Port design and size has way more to do with velocity into cylinder than valve sizes do. You really cant overvalve a cylinder, but you can definitely over Size port and hurt performance. I have shifted heads around on flow bench bore and it doesnt have the dramatic effect on port flow that people think it would. FWIW </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">P.S. Oh and thanks Don!

 

also keep in mind that every aspect of the cam profile(lift duration c/l and so on) will and can change how much power/tq that you have and when you have it

 

Thunder 224/224 cam,all the bolt ons,Absolute Speed stage 2's 2.02/1.57.A4 with a PT4400 I have gone a best of 11.04@121.4mph.There is more to be had in weather this was run at -700DA here on L.I. it can hit mineshaft -1500DA's and the car is a lock for a 10 sec run.Unlocked dyno was 405hp we plan on a redyno with it locked for some new numbers.This package kicks tail and at a great price.

 

Your times and speed are impressive and you are most certainly going to run 10's. How much does your car weigh?