AT Racing World heads? (Or other "cheap" brands...)

LILCBRA · Dec 10, 2020

And they look fantastic so far!

Sadly, this is about as far as I'm going to do anything with them for a while though. I still have a buttload of work to do to the house, then hopefully a refi to build my garage, THEN dig deep into Mustang work. But the biggest engine part purchase is here and I think I'm happy with the decision so far. Only time will tell how they will perform for me.

@hoopty5.0 - hopefully you'll post your progress and your thoughts, too, so everyone can see the dirt on these. I think they'll be a spectacular buy for just about anyone so far!

LILCBRA · Dec 10, 2020

Oh, one thing about the exhaust ports - they're actually a little bigger than the MAC shorties I picked up off Craigslist last year. Their opening measures about 1x1.4. So I may be shopping for new headers sometime so they're not a choke point....

General karthief · Dec 10, 2020

Are they so big that you can't open up the header entrance a little but then again they may be more efficient with a larger header tube.

Potomus Pete · Dec 10, 2020

What can a poor fool sitting in his chair for hours say ?? But , wish it was me.

LILCBRA · Dec 10, 2020

General karthief said:
Are they so big that you can't open up the header entrance a little but then again they may be more efficient with a larger header tube.

I'm not 100% sure to be honest. It looks to be the weld that closes them up a little, so I might be able to. I'll research it more when the time comes, but thought I'd take a look and compare since the ports on the heads looked kinda big compared to what I'm used to seeing. Height-wise, they look pretty close, it's the width that might be a problem.

mrspeed · Jan 22, 2021

Potomus Pete said:
Great its about time we get a review on some of this stuff. Nice to get a price on the machine shop. Somebody besides me sometime needs to do a Flotech set of heads. Thanks for the info.

From what I've read, the Flotek's are copies of GT40 heads (in aluminum of course).

Bird76Mojo · Jan 23, 2021

I was following this thread hoping to see more, but I ended up saving a littler longer, and having Summit price match buyafr.com on a set of AFR 1399 heads, so it looks like I'm out. I saved almost $300 just doing that. Summit rocks.

Good luck guys.

JKWilson61 · Jan 24, 2021

Anyone else wanting to order a set of Promaxx I can offer one bit of advice. Expect to wait. I know several others received theirs a few months back within the advertised 10-14 business days. Unfortunately I haven't been so fortunate. I ordered a set after Christmas and am still waiting. I called them last week and was told another week to week and a half. Just a heads up for those interested in them.

LILCBRA · Jan 26, 2021

LILCBRA said:
I'm not 100% sure to be honest. It looks to be the weld that closes them up a little, so I might be able to. I'll research it more when the time comes, but thought I'd take a look and compare since the ports on the heads looked kinda big compared to what I'm used to seeing. Height-wise, they look pretty close, it's the width that might be a problem.

I guess I should update about the headers.....

I looked at the MACs a little closer and they would've been a choke point regardless. So I ordered and received a new set of headers off Amazon.

Amazon product ASIN B01LYO3MEUView: https://www.amazon.com/gp/product/B01LYO3MEU/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1

Now most everything is sitting in my breakfast nook waiting on me to finish the house projects and garage build so I can start working on the Mustangs. Sometimes adulting and being responsible sucks.....

a91what · Jan 26, 2021

LILCBRA said:
I guess I should update about the headers.....

I looked at the MACs a little closer and they would've been a choke point regardless. So I ordered and received a new set of headers off Amazon.

Amazon product ASIN B01LYO3MEUView: https://www.amazon.com/gp/product/B01LYO3MEU/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1

Now most everything is sitting in my breakfast nook waiting on me to finish the house projects and garage build so I can start working on the Mustangs. Sometimes adulting and being responsible sucks.....

adulting is overrated.... like this work thing

AT Racing World heads? (Or other "cheap" brands...)

LILCBRA

I wish I didn't have all of these balls in the air

LILCBRA

I wish I didn't have all of these balls in the air

General karthief

wonder how much it would cost to ship you a pair

Potomus Pete

I'm still waiting for the fully nude shots

LILCBRA

I wish I didn't have all of these balls in the air

mrspeed

Bird76Mojo

JKWilson61

Active Member

LILCBRA

I wish I didn't have all of these balls in the air

a91what

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AT Racing World heads? (Or other "cheap" brands...)

I wish I didn't have all of these balls in the air

I wish I didn't have all of these balls in the air

wonder how much it would cost to ship you a pair

I'm still waiting for the fully nude shots

I wish I didn't have all of these balls in the air

Active Member

I wish I didn't have all of these balls in the air

SendMeUrDataLog

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