New Bare 039 Heads Available $279, AA Performace Products-In California Options

[914Sixer]

Bare,three stud, oval port 2.0 Liter Heads. Just got the email about these a few minutes ago. Says they are in stock and ready to ship $279. Part # 004 CH 039 BC Link not working right.

[914work]

Agreed thanks Len! and a question..
Ive been debating buying a set of AMC heads and engaging in some serious machine work to mod them to 2L spec and twin plug for my 2366 Mtr build w/Nikkies.
Do you think these would be acceptable options while perhaps saving me some scratch?

[HAM Inc]

Agreed thanks Len! and a question..
Ive been debating buying a set of AMC heads and engaging in some serious machine work to mod them to 2L spec and twin plug for my 2366 Mtr build w/Nikkies.
Do you think these would be acceptable options while perhaps saving me some scratch?

Verdicts still out on these castings. They make a good first impression, but at this point I need to work a pair. They clearly aren't as beefy as the amc's. The amc's are very good castings that have proven durable on a lot of very high output large displacement engines over the past 15 years. We'll see. Like I said, once I machine a pair I'll know a lot more.

I would LOVE it if I didn't have to weld heads to move the spark plugs anymore. I still do all of the welding and peening personally and it takes it's toll physically. Not to mention the time.

[Robnxious]

Agreed thanks Len! and a question..
Ive been debating buying a set of AMC heads and engaging in some serious machine work to mod them to 2L spec and twin plug for my 2366 Mtr build w/Nikkies.
Do you think these would be acceptable options while perhaps saving me some scratch?

Verdicts still out on these castings. They make a good first impression, but at this point I need to work a pair. They clearly aren't as beefy as the amc's. The amc's are very good castings that have proven durable on a lot of very high output large displacement engines over the past 15 years. We'll see. Like I said, once I machine a pair I'll know a lot more.

I would LOVE it if I didn't have to weld heads to move the spark plugs anymore. I still do all of the welding and peening personally and it takes it's toll physically. Not to mention the time.

Well I for one want to thank you for personally doing the welding and peening on your heads, since my set just arrived for my build today. Can't wait to drive them and see what all the fuss is about! (IMG:style_emoticons/default/drooley.gif)

[HAM Inc]

Agreed thanks Len! and a question..
Ive been debating buying a set of AMC heads and engaging in some serious machine work to mod them to 2L spec and twin plug for my 2366 Mtr build w/Nikkies.
Do you think these would be acceptable options while perhaps saving me some scratch?

Verdicts still out on these castings. They make a good first impression, but at this point I need to work a pair. They clearly aren't as beefy as the amc's. The amc's are very good castings that have proven durable on a lot of very high output large displacement engines over the past 15 years. We'll see. Like I said, once I machine a pair I'll know a lot more.

I would LOVE it if I didn't have to weld heads to move the spark plugs anymore. I still do all of the welding and peening personally and it takes it's toll physically. Not to mention the time.

Well I for one want to thank you for personally doing the welding and peening on your heads, since my set just arrived for my build today. Can't wait to drive them and see what all the fuss is about! (IMG:style_emoticons/default/drooley.gif)

Thanks for purchasing a pair of my heads! Lot of time and effort goes into them. Hope you're satisfied with the performance. (IMG:style_emoticons/default/beer.gif)

As for the knockoff heads, I've just finished a pair. They machined well and critical deminsions are a match, for the most part. The pushrod tube bores are a couple of thousanths small, which is good since the machine work to them is rough as a cob and require honing to smooth them out so they don't tear o-rings. The flycut finish is okay, but the work from chamber to chamber varied by a couple of thousanths. Our finish work is with .0005"

The intake ports are awful as delivered. Rough as cobs (and I like rough, but this was a bit much) and don't line up at all with a factory gasket. But that wasn't a big deal for me as they do have the same corkscrew shape, and are undersized such that with port work they lined up fine and flowed the same as our ported heads.

The exhaust ports are pretty much dead nuts copies of the O.E. heads in rough shape and after polishing and blending flow about the same as an untouched stock port, which is good when comparing to other O.E. T4 heads (1.7&1.8) but bad when comparing to what we get out of our AMC heads, which have tiny ports as delivered from AMC and lots of meat around the outside of the port that allows us to carve a far superior shape that we've developed over the years. There's not much that can be done to improve the knockoff ports as they are bulged out where it doesn't help and don't have meat enough to port where it does help.

As for the machining characteristics of the heads I ran them on the cnc at the same feeds and speeds with the same tooling as we use on AMC heads. The chips and machined surfaces were identical in appearance to the AMC heads and the machined dimensions were with .0002" of what we get with the AMC's. That tells me that they at least have similar machinibility, which is encouraging regarding alloy characteristics, but hardly conclusive in predicting durability.

Because they are lightweight castings of an unknown alloy I am sending this pair off for thermal coatings. After which they will go on a 2270 being built by a freind of mine and Jake's for some serious road use. Not screaming high revver, which would actually be less challenging, but in a 412 that is going to be lugged to the ends of the earth, something aircooled heads hate!

My verdict is still out on these castings as far as durability goes. My hunch is that they are going to do at least as well as a 40Y.O. casting that's been run through the ringer. That said, I'm willing to build them out with quality parts if people are interested, but I'm not willing to put any[i] warranty on them beyond my workmanship.