Author Topic: Medium Riser Head Project - Update  (Read 2811 times)

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mbrunson427

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Medium Riser Head Project - Update
« on: February 13, 2025, 11:23:03 AM »
This is set #001. We had a couple initial sets cast so we could machine them and make sure the casting design is solid. So far it has worked out very well, I think we need to tweak the water jackets in a couple locations, but no show stoppers!

This MR set is now ready for all the thread inserts, valve guides, and valve seats. The machining on the tunnelport head is happening right now, so that set isn't far behind.

We have a 496" short block in the shop ready to bolt heads on to. The plan is to dyno with the MR set, and then with the TP set. We're getting closer every day to calling this project "complete". Has been a long time coming.







Mike Brunson
BrunsonPerformance.com

e philpott

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Re: Medium Riser Head Project - Update
« Reply #1 on: February 13, 2025, 11:30:18 AM »
Look like some really nice ports and Chambers

MrRupp

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Re: Medium Riser Head Project - Update
« Reply #2 on: February 13, 2025, 02:50:02 PM »
I have a brand new SO block they would be perfect for, and then a 67 Cougar to put the engine in.
Clint

Barry_R

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Re: Medium Riser Head Project - Update
« Reply #3 on: February 13, 2025, 08:18:20 PM »
Looking really nice

TurboChris

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Re: Medium Riser Head Project - Update
« Reply #4 on: February 13, 2025, 11:35:21 PM »
Hey, those look great! They are  coming along!
1966 Fairlane - 427 - Pond Block - Edelbrock - Tunnel Wedge

428kidd

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Re: Medium Riser Head Project - Update
« Reply #5 on: February 14, 2025, 08:50:03 AM »
Congrats Mike nice work!

My427stang

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Re: Medium Riser Head Project - Update
« Reply #6 on: February 16, 2025, 10:10:24 AM »
Looks great, keep up the good work!
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Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

Stangman

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Re: Medium Riser Head Project - Update
« Reply #7 on: February 16, 2025, 10:02:44 PM »
Hey Mike what was the fix for the port problem just a little less porting or a new design. They look great.

mbrunson427

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Re: Medium Riser Head Project - Update
« Reply #8 on: February 17, 2025, 01:59:59 PM »
Hey Mike what was the fix for the port problem just a little less porting or a new design. They look great.

I'm trying to remember the issue... maybe the iron TP head that we tried to CNC? The new head has material in that location where the iron head broke through, so that's been taken care of. That was caused by core shift in the factory iron heads. Bad day.
Mike Brunson
BrunsonPerformance.com

Stangman

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Re: Medium Riser Head Project - Update
« Reply #9 on: February 17, 2025, 02:47:08 PM »
Yes my bad it was the iron one.

gregaba

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Re: Medium Riser Head Project - Update
« Reply #10 on: February 19, 2025, 03:31:00 PM »
Very nice looking, good job.
Greg

hbstang

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Re: Medium Riser Head Project - Update
« Reply #11 on: February 19, 2025, 06:04:13 PM »
wow those look great! nice job.

fairlaniac

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Re: Medium Riser Head Project - Update
« Reply #12 on: February 20, 2025, 01:39:21 PM »
Very cool Mike, we'll see you guys in Muncie!
Doug Bender
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GerryP

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Re: Medium Riser Head Project - Update
« Reply #13 on: February 20, 2025, 03:36:22 PM »
Are you publishing any specs on these heads?

mbrunson427

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Re: Medium Riser Head Project - Update
« Reply #14 on: February 20, 2025, 04:10:36 PM »
Are you publishing any specs on these heads?

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/
Mike Brunson
BrunsonPerformance.com