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-   -   What's wrong with AFR's exhaust port? (https://www.offshoreonly.com/forums/general-q/323534-whats-wrong-afrs-exhaust-port.html)

sutphen 30 03-05-2015 06:33 PM

yup,,afr has great packaging.our ups driver doesn't do that kind of damage.:D

the deep 03-05-2015 06:49 PM


Originally Posted by sutphen 30 (Post 4274485)
yup,,afr has great packaging.our ups driver doesn't do that kind of damage.:D

I think somebody was pissed at the 70 lbs . Box looked like it had bacca spit on it too . :angry-smiley-038: Makes me wonder if these went through Michigan on the way here . http://i1243.photobucket.com/albums/...thedeep/19.gif

Black Baja 03-05-2015 07:21 PM


Originally Posted by the deep (Post 4274472)
Someday in the future , a man like myself that is researching Air Flow Research heads in particular the 315's for his build , needs to see these pics . Got a present from Marine Kinetics today and took these pics straight out of the shipping box . A picture does speak a thousand words !!! Straight down the exhaust port with an Inconal Tulip Valve at the bottom .

http://i1243.photobucket.com/albums/...t/100_0993.jpg

http://i1243.photobucket.com/albums/...t/100_1002.jpg

Combustion chamber almost looks hand polished .

http://i1243.photobucket.com/albums/...t/100_0997.jpg

http://i1243.photobucket.com/albums/...t/100_1004.jpg

Intake side of things .

http://i1243.photobucket.com/albums/...t/100_0994.jpg

And I wanted to add that only a top notch company would package their product in such a manner to protect it from careless UPS employees . The damage shown here would have surely resulted in a damaged aluminum head .

http://i1243.photobucket.com/albums/...t/100_1009.jpg

http://i1243.photobucket.com/albums/...t/100_0998.jpg

http://i1243.photobucket.com/albums/...t/100_1001.jpg

http://i1243.photobucket.com/albums/...t/100_1000.jpg

Man those pics almost make me want to pull my 385's out of the box that's been sitting in my living room for a month.

the deep 03-05-2015 07:25 PM


Originally Posted by Black Baja (Post 4274514)
Man those pics almost make me want to pull my 385's out of the box that's been sitting in my living room for a month.

Definitely look better in the living room out of the box . :cool-smiley-011:

Full Force 03-05-2015 08:36 PM

3 Attachment(s)
Got my AFR yesterday, Same quality, I did CNC chamber not full port, but extremely happy with product and the way they were bolted down inside box..

[ATTACH=CONFIG]538076[/ATTACH][ATTACH=CONFIG]538077[/ATTACH][ATTACH=CONFIG]538078[/ATTACH]

Randy Nielsen 03-05-2015 10:05 PM

3 Attachment(s)
[ATTACH=CONFIG]538079[/ATTACH][ATTACH=CONFIG]538080[/ATTACH][ATTACH=CONFIG]538081[/ATTACH]A few pics of my new AFR's

Black Baja 03-06-2015 05:25 AM


Originally Posted by Full Force (Post 4274551)
Got my AFR yesterday, Same quality, I did CNC chamber not full port, but extremely happy with product and the way they were bolted down inside box..

[ATTACH=CONFIG]538076[/ATTACH][ATTACH=CONFIG]538077[/ATTACH][ATTACH=CONFIG]538078[/ATTACH]

That's a pretty good looking cast port.

MILD THUNDER 03-06-2015 10:25 AM

When you buy the AFR heads ready to bolt on, are the guide clearances and seat widths set up for marine/marine supercharging ?

the deep 03-06-2015 11:39 AM


Originally Posted by MILD THUNDER (Post 4274756)
When you buy the AFR heads ready to bolt on, are the guide clearances and seat widths set up for marine/marine supercharging ?

Although they say nothing about seat widths they do mention vgc in the literature as follows : Our typical valve guide clearances are .0013 - .0016 . In some severe applications ( nitrous , marine endurance racing or blower usage ) looser guides might be required . Check with your engine builder .

MILD THUNDER 03-06-2015 12:44 PM


Originally Posted by the deep (Post 4274799)
Although they say nothing about seat widths they do mention vgc in the literature as follows : Our typical valve guide clearances are .0013 - .0016 . In some severe applications ( nitrous , marine endurance racing or blower usage ) looser guides might be required . Check with your engine builder .

That seems a little tight for a marine supercharged setup esp running cool water temps . Id be a little worried about being that tight, especially if your engine isnt thermally stable. If your on the cold side of water temps, that may exacerbate the issue. Also, inconel valves are great but they still need a wide seat to aid in cooling the valve .

My next set of heads I will be buying bare and having my head guy assemble them, check guide clearances, check valve job ...


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