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ProMaxx 317 heads arrived

Old 07-18-2017, 03:55 PM
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Originally Posted by MILD THUNDER
Come to chinatown in chicago. I used to have to pay extra for happy endings . With big al , its already included
nice to see you back MT, haven't seen you on here in a while.
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Old 07-19-2017, 10:38 AM
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Originally Posted by LT1GMC
Big Al of AK Racing just prepped up a set of the new ProMaxx 317 heads for my Whipplecharged 500 EFI build. First of all I am pleased with the casting quality of the heads, much finer finish than the Edelbrocks I used on my last build. Deck thickness is very beefy as well as the machining is spot on. Al talked me thru all the special details need for a marine application, and especially a supercharged one. Guide clearance, seat width, 2.30 intakes and Inconel exhausts, spring selection and setup to match my cam, and a quick turn around. Will not have any operating details for a month or two but I am excited to bolt them on. Wish I could post some motorhead porn pics
Al also included a couple of special details, such as a sweet "Supercharged" logo on the front ends. Easy and knowledgeable guy to work with, and very affordable for true "ready-to-bolt-on" heads.
AWESOME!!
Many thanks for the kind words Steven, I am pleased and happy to hear the great news... Happy boating!!
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Old 07-19-2017, 10:51 AM
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Originally Posted by LT1GMC
Well, finally got the rest of the details on our build worked out and got the boat back in the water. All I can say is Awesome! I don't have the luxury of a dyno to test so I am doing it the hard way, see how fast we can go. 83 mph at 5300-5400 (tach bouncing a bit) It pulls like a freight train and I have to give some credit to these heads setup by Al at AK racing. I have near 17 hours on the boat with multiple full throttle runs getting the tuning right and have no issues to date.
Thanks Al!
This is great news, and real world experience... The flow bench doesn't lie, and having a decent casting to start with makes my job a whole bunch easier!!
Thanks to Jason and his team at Promaxx for providing exceptional castings at good prices, and Thank you Steven for choosing AK Racing/Supercharged cylinder heads!!
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Old 07-19-2017, 10:54 AM
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Originally Posted by MILD THUNDER
Come to chinatown in chicago. I used to have to pay extra for happy endings . With big al , its already included
FO 2 DOLLA WE MAIKA YIU HOLLA!!!
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