Author Topic: Medium Riser Head Project - Update  (Read 4850 times)

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GerryP

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Re: Medium Riser Head Project - Update
« Reply #15 on: February 21, 2025, 01:44:54 PM »
...
We have some info on our site. All the data on there is based upon the prototype head, which was an edelbrock pro-port head that was welded on and modified. The tunnelport data is based on our 3D printed ports.

After these heads are complete, we will flow them, cc them, etc. and I will update the website.

https://brunsonperformance.com/products/heads/

Thank you.  With that 2.30" I valve, how would these do on a 428 bore?  Again, thanks for your efforts.

Ghoughton

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Re: Medium Riser Head Project - Update
« Reply #16 on: February 22, 2025, 12:36:03 PM »
Very nice!!

mbrunson427

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Re: Medium Riser Head Project - Update
« Reply #17 on: February 27, 2025, 04:34:04 PM »
Thank you.  With that 2.30" I valve, how would these do on a 428 bore?  Again, thanks for your efforts.

These will fit a 4.13 bore easily. 4.08" bore will still fit but may be lift limited.

Once we get these fully complete, they will go on my 445" short block and we'll determine how the 4.08" bore works out.
Mike Brunson
BrunsonPerformance.com

GerryP

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Re: Medium Riser Head Project - Update
« Reply #18 on: February 28, 2025, 04:03:06 PM »
...

These will fit a 4.13 bore easily. 4.08" bore will still fit but may be lift limited.

Once we get these fully complete, they will go on my 445" short block and we'll determine how the 4.08" bore works out.

Thank you.