Our three new heads and when to use them

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Wesman07
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Our three new heads and when to use them

Post #1 by Wesman07 » Thu Mar 29, 2018 12:34 pm

So I’d like to start a sub discussion about our cylinder head options. Particularly curious about which head would be best for a certain type of build? And which situation would one head be better than the other?
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86 f150 300 efi with advanced stock cam. Np435, Dana 60/ 10.25, 35" BFG's, four link front suspension with 12" travel fox coil overs, custom deaver leaf pack in the rear.

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bubba22349
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Location: Flagstaff, Az. 86005 near the old Route 66

Re: Our three new heads and when to use them

Post #2 by bubba22349 » Mon May 21, 2018 4:19 pm

:beer: ok so the Aluminum head looks to be for very Hi Performance build up and racing. :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

Wesman07
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Re: Our three new heads and when to use them

Post #3 by Wesman07 » Sat Jun 09, 2018 12:10 pm

This we the engine masters episode that got me thinking. They used a 351ci motor... so it not apples to apples. I think we could still put a cross flow head on a stock 300 and see little to no drop in low end power and pick up a lot of Hp.

https://m.youtube.com/watch?v=p1w8OU_8-JM
In-lines we trust

86 f150 300 efi with advanced stock cam. Np435, Dana 60/ 10.25, 35" BFG's, four link front suspension with 12" travel fox coil overs, custom deaver leaf pack in the rear.

WorldChampGramp
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Re: Our three new heads and when to use them

Post #4 by WorldChampGramp » Sun Jun 10, 2018 9:04 pm

Wesman07 wrote:This we the engine masters episode that got me thinking. They used a 351ci motor... so it not apples to apples. I think we could still put a cross flow head on a stock 300 and see little to no drop in low end power and pick up a lot of Hp.

https://m.youtube.com/watch?v=p1w8OU_8-JM


Wesman07 and Forum readers: As you are aware we are definitely planning on Dyno testing all three versions of our cylinder head offerings e.g. the (2) u-Flo street strip, max flow and the x-flow aluminum head. This weekend we jointly decided to build 2 or 3-separate short blocks. 1) hypereutectic piston 9:0-9.5 for street/strip head 2) forged flat top 11.5 to 12.0 with longer event cam for max flow head, & finally the x-flow combination which we will ATTEMPT to retro-fit to the u-flow head to #1 which we don’t anticipate problematic due to the dish (valve clearance wise) BUT anticipate probably having to replace pistons in #2 max flow uhead short block to provide for minimum valve clearance during the overlap cycle. Hope this all makes sense, REMEMBER my promises to all of you dyed in the wool Big Six members NO SHORTCUTS, NO EXCUSES, NOTHING UNDOCUMENTED, NOTHING consider UNIMPORTANT. Like a cleaver cliché I once saw in a men’s room “We Aim to please, so please AIM”
Bruce
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