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Old 12-26-10, 01:28PM   #1
GTEEO
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Default HP rockers

Does Yella Terra make anything for standard HP's?
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Old 12-27-10, 12:07AM   #2
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I would give them a call, they do make them for CV-1 heads..so I would think their familiar with Pontiac's.
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Old 02-14-11, 11:35PM   #3
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Does Yella Terra make anything for standard HP's?
I've been told that they are in development now. What are you looking for?
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Old 02-19-11, 05:11PM   #4
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I've been told that they are in development now. What are you looking for?
Cheap shafts! Don't want to spend a lot for standard push rod HP's. If I ever go past 400cfm I'll have to go shafts and at that stage I'll buy good ones. My lift will be under .800 and shift RPM will be around 6500.
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Old 02-22-11, 11:41PM   #5
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Cheap shafts! Don't want to spend a lot for standard push rod HP's. If I ever go past 400cfm I'll have to go shafts and at that stage I'll buy good ones. My lift will be under .800 and shift RPM will be around 6500.

I can't confirm this 100%, but this is what I've heard. Yella Terra said they were thinking of making a new part number for the KRE HI Ports. They would be a paired shaft set up with about a .240" offset. I'm thinking of redoing my Highports to utilize these.

Butler sells a similar setup for the Eheads and has some pics on his website.

http://butlerperformance.com/product...rms&Comp..html
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Old 02-23-11, 12:38AM   #6
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What is the flow numbers on these HP and who did the heads.
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Old 02-23-11, 09:14PM   #7
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What is the flow numbers on these HP and who did the heads.
Don't have them yet. Should be around 380 from what Dave at SD said. These will be the first set of CNC HP's and will probably be offered as his Bracket' heads. I told him I wanted to stay under .800 lift and keep the RPM's down for reliability. My ET goal is 8.80's at #3000 N/A. Right now I'm running 9.20@~153 with old R&R E- heads.

Thanks for the info on the YT shafts. I guess with the offset you would also need offset lifters?
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Old 02-23-11, 09:39PM   #8
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There are a few sets of those heads already out there.
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Old 02-23-11, 10:28PM   #9
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There are a few sets of those heads already out there.
Could be. I received an E-mail the other day that he was not satisfied with a port that he did for my heads and was re-doing it. If he had some out there already, you'd think he'd just throw a set on the CNC and then ship them out. From my conversations with him, this is a new direction he is going for 535 bracket heads. Either way I'm anxious to get them and the LS firing order cam.
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Old 02-24-11, 12:40AM   #10
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SD Performance..yes your in good hands. Definitely let us know what you come up with for rockers, everyone is always interested.
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Old 02-24-11, 03:37AM   #11
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Quote:
Originally Posted by GTEEO View Post
Don't have them yet. Should be around 380 from what Dave at SD said. These will be the first set of CNC HP's and will probably be offered as his Bracket' heads. I told him I wanted to stay under .800 lift and keep the RPM's down for reliability. My ET goal is 8.80's at #3000 N/A. Right now I'm running 9.20@~153 with old R&R E- heads.

Thanks for the info on the YT shafts. I guess with the offset you would also need offset lifters?
No need for offset lifters. Just grab yourself a nice set of Harland Sharpe rockers and a set of KRE stud girdles and you'll be good. You shouldn't have any problems with the rpm you want to run.

I suggested the Yella Terra stuff in case you wanted the option to widen the port a little without running a full shaft.
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Old 02-24-11, 10:13PM   #12
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He has not been happy with the mid lift numbers for over a year now. Am growing older and more broker waiting.
To tell you the truth, I wish someone would have just bought a that set of Barton 397cfm standard pushrod High Ports that were for sale awhile back and had them didgitized.
Problem solved, I would have done it if I had the cash.
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Old 02-24-11, 11:04PM   #13
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Originally Posted by Dragncar View Post
He has not been happy with the mid lift numbers for over a year now. Am growing older and more broker waiting.
To tell you the truth, I wish someone would have just bought a that set of Barton 397cfm standard pushrod High Ports that were for sale awhile back and had them didgitized.
Problem solved, I would have done it if I had the cash.
Their still for sale. Good price $3000.00
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Old 02-24-11, 11:23PM   #14
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I was really looking at them but decided to go with new heads even if they flowed less. Just my preference.

Anybody know the aprox. push rod length? Need to get a push rod checker and mine only goes to 9.8".
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Old 02-25-11, 03:31AM   #15
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Quote:
Originally Posted by Dragncar View Post
He has not been happy with the mid lift numbers for over a year now. Am growing older and more broker waiting.
To tell you the truth, I wish someone would have just bought a that set of Barton 397cfm standard pushrod High Ports that were for sale awhile back and had them didgitized.
Problem solved, I would have done it if I had the cash.
What do the SD highports flow? (mid lift)
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