Gm Fast Burn vs Ebay 200 Dart Pro 1 Copy

[skinny z]

I see the P/N differences now between bare and assembled.

As for posting pictures, directly below the dialogue box for a new post is the attachments tab. Click on it and the "add files" button appears. Click on it it and you can browse and select the file you want to post. Then you'll be asked to place it inline. Select a place in your open dialogue box a few lines below your last line of text and place it there.
That should work.

[Zing]

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[Zing]

Cheers mate worked it out
The Dart copy Ebay head maybe a safer bet?
At least I know what I’m in for, as I need around 280cfm by 700 lift the achieve my goals
I wish I knew how much work the Gm head needs to make the flow?
I’ve never seen a fast burn in person, and the heads I’ve been offered are over 1000 miles away and I’d be buying them unseen not knowing if I can make them work myself?

[Zing]

This is what I’ve been offered for your money approx $500 us?

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[PRH]

viewtopic.php?t=1037

[Zing]

Seen that post too cheers
So many varying reports , which numbers do you take for gospel?
Do I need to try and find 20-30cfm to achieve my goals?
Or am chasing 45-50cfm? Which would definitely be out of my league in porting
Like I said I’ve never even seen a Gm Fadt burn in the flesh.

[Zing]

I was hoping someone with some fast burn porting knowledge may have some imput?
Can a few little things help these ports cfm wise? Or is it hard work finding flow?

[skinny z]

I was hoping someone with some fast burn porting knowledge may have some imput?
Can a few little things help these ports cfm wise? Or is it hard work finding flow?

Two guys I would give a shout out to.
Eric Weingartner. memberlist.php?mode=viewprofile&u=8292
Chad Speiers. memberlist.php?mode=viewprofile&u=17359

[Bob Hollinshead]

Eric did a video series on that Dart copy. Just by doing a good valve job and installing 2.08 intake valves flow went to 277 @ .600 lift. Now if you also raise the roof above the shortside, perfect the shortside turn, widen it at the pinch a little, narrow the divider a little.....then I'd bet they'd be flowing 285 by .650. The bowls are already big-almost perfect as is for a 2.08.

[skinny z]

Eric did a video series on that Dart copy. Just by doing a good valve job and installing 2.08 intake valves flow went to 277 @ .600 lift. Now if you also raise the roof above the shortside, perfect the shortside turn, widen it at the pinch a little, narrow the divider a little.....then I'd bet they'd be flowing 285 by .650. The bowls are already big-almost perfect as is for a 2.08.

That's the video I was looking for.
Here's hoping the OP gets a look at it. Your description I believe checks all the boxes.

EDIT:
Found it. Thanks Bob.

https://www.youtube.com/watch?v=OZWpViKouWA&t=619s

[Bob Hollinshead]

I picked up a pair myself and plan on doing the same on a 10.5-1 377 build. Cam I have is .650 and 245@ .050 on a 106 LSA. I'll have the head flowed to see where it ends up.

[dfarr67]

The exhaust port is raised but the bolt holes in the stock location. Takes some grinding and slotting etc to get a decent fit there.

In the right hands the fastburn can be pretty damn good. If you can buy them for the price of Chinese heads i would buy them regardless if you use them on this project.

Ya- the exhaust killed it for me, I already had good ss Edelbrock headers. AFR vortec was my choice.

[skinny z]

The exhaust port is raised but the bolt holes in the stock location. Takes some grinding and slotting etc to get a decent fit there.

In the right hands the fastburn can be pretty damn good. If you can buy them for the price of Chinese heads i would buy them regardless if you use them on this project.

Ya- the exhaust killed it for me, I already had good ss Edelbrock headers. AFR vortec was my choice.

Very valid point.
It wasn't until I saw the catalogue picture that I realized how offset the exhaust port is. As posted, I can see that's a problem for header fitment. And whatever follows from there.

[Zing]

Thanks for the advice fellas, yes I follow Weigartner Racing on YouTube, I’ve watched his videos on the KMJ Assault heads he does for his sisters car. Yes very easy and good flow numbers.
Eric seems a good guy and his videos are very informative.
I was sort of hoping there may have been a chance for the GM Fast Burn heads with similar mods, not the bigger valve but the rest etc.
Looks like I may have to pass on the Gm Fast Burn head deal, and purchase some Ebay Dart copies.
I previously sent a message to Randy331 asking his advice before I posted this post, as I have seen he has modded a few sets, and was hoping for his advice?
It’s a shame to pass up USA cast genuine Gm products, for Ebay China generics simply not from a price point of view, but the performance is just not there

[steve cowan]

Thanks for the advice fellas, yes I follow Weigartner Racing on YouTube, I’ve watched his videos on the KMJ Assault heads he does for his sisters car. Yes very easy and good flow numbers.
Eric seems a good guy and his videos are very informative.
I was sort of hoping there may have been a chance for the GM Fast Burn heads with similar mods, not the bigger valve but the rest etc.
Looks like I may have to pass on the Gm Fast Burn head deal, and purchase some Ebay Dart copies.
I previously sent a message to Randy331 asking his advice before I posted this post, as I have seen he has modded a few sets, and was hoping for his advice?
It’s a shame to pass up USA cast genuine Gm products, for Ebay China generics simply not from a price point of view, but the performance is just not there

You probably won't get a response from Randy, unfortunately he has not been around for a while.i recommended reading all his posts and threads,he was one of the sharpest guys on this forum in my opinion