Sledgehammer's New Breather

[Warren Stramer]

Hey Steve, How bout a look at the intake/exhaust gasket side.

[BadFastGTC]

The chambers were welded up completely, save for a small hole to each port. The ports were changed somewhat when the head was cast. One fantastic thing they did was to eliminate the coolant passage behind the guide in the exhaust port. The intake side has an area filled that I was going to do, this step was saved. The information I got when I purchased the head was that it was welded, re-heat treated, and the machining was done for the cam towers and lifter holes. The chambers were non-existent when recieved, flat with the deck.

Steve M.

What Iam asking is, was it flat (even) with the deck surface? Or was it welded, and then contoured?

[BadFastGTC]

Intake port entrances and exhaust port exits are 1/2" higher than stock locations. I bolted a valve cover to the head, clamped an intake to the head, marked all the positions and then had the intake port roof areas welded up. The exhaust port floors were also welded up. The head had rough ports cast in it.

Steve M.

It was a completely unmachined head, no ports, guides, cumbustion chambers, nothing. I'm personally interested in seeing shots of the manifold side of the head, I want to see just how much higher the ports are.

[BadFastGTC]

The intake/exhaust side is still rough. Once it looks a lot better, I'll shoot it and post it.

Steve M.

Hey Steve, How bout a look at the intake/exhaust gasket side.

[glhs875]

That head is sounding REAL SWEET!!!

[BadFastGTC]

Warren,

Here are a couple shots of the roughed exhaust ports

Steve M.

Hey Steve, How bout a look at the intake/exhaust gasket side.

[Warren Stramer]

Steve, Looks like aprox. same cross section but with a much straighter shot at the valve.....yes,no,maybe? either way, nice work.........Warren

[Frank]

Steve, Looks like aprox. same cross section but with a much straighter shot at the valve.....yes,no,maybe? either way, nice work.........Warren

That pretty much sums it up. I believe he is welding up the top of the head to move the bolt holes up and such since the whole port has been moved up for that beautiful port.


Frank

[Reaper1]

Steve, I'm VERY excited to see this work on this head! I remember seeing that head on e-bay and wishing I had the funds to get it so you could work your magic on it! I'm anxiouse to see what becomes of it! I have a question for ya...when/if the ports are made larger than the holes in the gasket, how to you deal with this? Also, how close is the intake going to be to the valve cover? Is there any interference? I know you said you had all this mocked up, I'm just wondering how certain things fit. Anyways...it's nice to see this...keep it up!

[omnivore]

When this head is done, and #'s are checked out, are you considering having these cast up in quantity and selling them to interested TD'ers? I mean a mass produced head that bolts up directly, and yeilds significant gains without witch-doctor top secret porting should be worth what Dart etc get for a Honda head, at least.

[BadFastGTC]

The intake/exhaust ports are not larger than the gasket. No need to worry about anything there. The intake is very close to the valve cover and will have to be relieved slightly.

Steve M.

Steve, I'm VERY excited to see this work on this head! I remember seeing that head on e-bay and wishing I had the funds to get it so you could work your magic on it! I'm anxiouse to see what becomes of it! I have a question for ya...when/if the ports are made larger than the holes in the gasket, how to you deal with this? Also, how close is the intake going to be to the valve cover? Is there any interference? I know you said you had all this mocked up, I'm just wondering how certain things fit. Anyways...it's nice to see this...keep it up!

[BadFastGTC]

I'm not considering doing anything save for running it on the car, if it all pans out as planned!

Steve M.

When this head is done, and #'s are checked out, are you considering having these cast up in quantity and selling them to interested TD'ers? I mean a mass produced head that bolts up directly, and yeilds significant gains without witch-doctor top secret porting should be worth what Dart etc get for a Honda head, at least.

[BadFastGTC]

Yessir buddy, the cross section is very close all the way out. The ports all have a straighter shot to and from the valves.

Steve M.

Steve, Looks like aprox. same cross section but with a much straighter shot at the valve.....yes,no,maybe? either way, nice work.........Warren

[GLHSKEN]

Steve,

Got your message this weekend... SOUNDED NICE!!! I'll give ya a shout this week. 2 cars almost back up. One needs a radiator one a belt and buttoning up.

[turbovanman²]

Too bad it can't be mass produced,

[Frank]

it could be, but it would require a group buy of around 200+ people... maybe more.


Frank

[BadFastGTC]

16" of vacuum on the tired motor!

Steve M.

Steve,

Got your message this weekend... SOUNDED NICE!!! I'll give ya a shout this week. 2 cars almost back up. One needs a radiator one a belt and buttoning up.

[BadFastGTC]

Considering how well the 8V cars represented us at SDAC/SRT Nats, perhaps Ma Mopar will end up going back to the 8V with the heads done this way! One never knows......

Steve M.

it could be, but it would require a group buy of around 200+ people... maybe more.


Frank

[Frank]

I should just for the heck of it see how much World Motors would charge for different quantities of head castings. Just for grins. However for that kind of work, you are almost better off taking a Neon head, doing an INDY port, making some other changes, and then having a casting that works with our blocks. That would be worth while... 300+ cfm heads on our cars would be sick. We have way more hood room when using a 2.4L head, so you could do some sweet stuff to one.


Frank

[cordes]

I should just for the heck of it see how much World Motors would charge for different quantities of head castings. Just for grins. However for that kind of work, you are almost better off taking a Neon head, doing an INDY port, making some other changes, and then having a casting that works with our blocks. That would be worth while... 300+ cfm heads on our cars would be sick. We have way more hood room when using a 2.4L head, so you could do some sweet stuff to one.


Frank

I agree. If you are going to have some thing cast, you might as well go all out with the platform that has the most potential.