New Stock Replacement Head Buyer Beware
 

Just looked at the Dart 10021070 heads today for my combo and the runner volumes are so LARGE that there is no way that you can make them right, sucks to waste that money when they are advertised at Dart as 165/65 runners( my mistake) :(

Re: New Stock Replacement Head Buyer Beware
 

Could it be they just "look too large" as numerous sites including Dart,Summit and Jegs list them as 165/65 ? They suggest a Fel Pro 1204 or OEM intake gasket for use with these.

Re: New Stock Replacement Head Buyer Beware
 

Tim, i think Jack FLOWED the heads, not just looked at them. and them where TOO big.

Re: New Stock Replacement Head Buyer Beware
 

Thats correct Brian, strong 175 0n the intake and 70 on the ex.

Re: New Stock Replacement Head Buyer Beware
 

Flow test?

Re: New Stock Replacement Head Buyer Beware
 

Flowed ok on the in and quite pour on the ex

Re: New Stock Replacement Head Buyer Beware
 

Those numbers are supposed to be C.C. volume measured with a Burette and alcohol. NOT air flow !

Re: New Stock Replacement Head Buyer Beware
 

I looked this part number up at Dart and it's an Iron Eagle SBC head. Dart's flow numbers are 210 intake/138 exhaust. In what way is this too big? Honest question from a Ford guy.

Re: New Stock Replacement Head Buyer Beware
 

Ok is what cfm @.400 lift. And quite poor is ?

Re: New Stock Replacement Head Buyer Beware
 

To my understanding, flow numbers mean nothing with respect to Tech!!
If you have 168 CC intake and 62 CC ex. you are good to go.
CFM is a different animal.
Terry K

Re: New Stock Replacement Head Buyer Beware
 

Just to be clear the numbers posted are runner volumes in cc's (175 and 70) I did not post flow numbers I must say this was completed in the proper manner and are good results. Just saying :)

Re: New Stock Replacement Head Buyer Beware
 

176.6 cc in the intake out of the box!

Re: New Stock Replacement Head Buyer Beware
 

You feel it would be to much to ask to get a manifold to compliment these heads? Old cast iron stuff just getting hard to come by. 😂😂

Re: New Stock Replacement Head Buyer Beware
 

Ya know Brian, you're right. There must be an Edelbrock intake that will match the heads.

Re: New Stock Replacement Head Buyer Beware
 

Correct, and one afternoon lunch with Pat C. will get you a 7 quart oil pan .....nothing SHOUTS stock Eliminator like that deep sump pan on 390 fords, Chevy 2's , and BB mopars....LOL.!!

Re: New Stock Replacement Head Buyer Beware
 

Picking up a little sarcasm here? :)

Re: New Stock Replacement Head Buyer Beware
 

Sometimes sarcasm and the truth are closely related.

Re: New Stock Replacement Head Buyer Beware
 

Need to send them to Erik Jones.. He says " That's easy to fix.. That's what we get paid to do!"

Re: New Stock Replacement Head Buyer Beware
 

So adjusting or "adding" material is illegal in stock and with NHRA have IR volumes on both the stock and replacement head wouldn't you fail tech either way? Not running the stock IR volumes in the replacement head? I see NHRA just allowing the replacement IR volumes to be allowed from here on out.

Re: New Stock Replacement Head Buyer Beware
 

Terry the problem is not one of the castings on the approved list is able to get down to the stock runner cc's legally "wink wink" ! I talked to a tech guy at RHS today and he told me they haven't casted their approved heads since 2011. That doesn't mean you can't find them but he said RHS is pretty much done with cast iron stuff!

I just wish NHRA would research something before they paint it with their broad brush!

Re: New Stock Replacement Head Buyer Beware
 

Re: New Stock Replacement Head Buyer Beware
 

Engine Quest bought most of the RHS cast iron line.

Re: New Stock Replacement Head Buyer Beware
 

They also require heavy new valves, no nail heads or wasted stems, and thick wall seats. Don't forget to sink the valves.