Author Topic: Build thread for my 865  (Read 8729 times)

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Gremlinsteve

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on: September 03, 2020, 11:46:06 pm
Some pics of the cyl head as delivered

Starting to work on it tonight


Gremlinsteve

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Reply #1 on: September 03, 2020, 11:46:55 pm
Pics


Gremlinsteve

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Reply #2 on: September 03, 2020, 11:47:36 pm
Pic


Gremlinsteve

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Reply #3 on: September 03, 2020, 11:49:41 pm
Pic3


Gremlinsteve

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Reply #4 on: September 03, 2020, 11:50:18 pm
This has got some really deep bowls. Very nice. They are tight so I can definitely open them up to take advantage of the valve size



Gremlinsteve

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Reply #5 on: September 04, 2020, 12:19:47 am
Pics


Gremlinsteve

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Reply #6 on: September 04, 2020, 04:19:32 pm
Flow bench setup


Gremlinsteve

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Reply #7 on: September 04, 2020, 04:20:10 pm
Pics


NVDucati

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Reply #8 on: September 04, 2020, 04:46:37 pm
Flow bench setup
Nice ! I assume those springs are just for the bench.
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Gremlinsteve

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Reply #9 on: September 04, 2020, 04:57:41 pm
Pic


ace.cafe

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Reply #10 on: September 04, 2020, 06:52:56 pm
This will be good!

Since the photos limit my observation, I have a couple questions.

1) I seems they sunk the valves into the seats deeper than I typically see. What do you think?

2) Can't see much of the port floor. Is the short turn as sharp as it looks?
« Last Edit: September 04, 2020, 06:58:30 pm by ace.cafe »
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Gremlinsteve

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Reply #11 on: September 04, 2020, 07:54:56 pm
Yes. There is room for improvement everywhere

The floors have a sharp turn to them


Gremlinsteve

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Reply #12 on: September 08, 2020, 08:24:09 pm
Got the intake bowls ported and polished.  The thing to remember is these flow numbers are via a port that is barley the size of a quarter

1 inch by 1.25

As you can see the flow has pick up decently


Gremlinsteve

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Reply #13 on: September 08, 2020, 08:25:26 pm
Bowls


ace.cafe

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Reply #14 on: September 08, 2020, 09:23:09 pm
Looks like plenty of flow at the lifts near max valve lift.
Your work looks nice and clean.

Are you interested in questions or comments?
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