Head suggestions for a tow vehicle? - 460 Ford Forum
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post #1 of 33 (permalink) Old 08-10-2016, 05:30 PM Thread Starter
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Head suggestions for a tow vehicle?

I am building a 55 wagon and am setting it up as a tow vehicle. It will probably never see 5K RPM, and must run on regular gas.

It will have a 4.5 Scat crank, probably Speedway 915-545.

I am in SoCal and have not yet settled on anyone to prep the block.

My core is a 71, I think, it was from junk yard 20 years ago.

Any suggestions for heads?

TY
Ray
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post #2 of 33 (permalink) Old 08-11-2016, 11:26 AM
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Stock heads will be fine. D3VE's being the easy choice because they have big enough chambers to keep the compression under 9:1. If you want to go aluminum, either the Edelbrock 95cc head, or Procomp heads would work well, and have the added benefit of reducing your octane requirements. Procomps would probably be my first choice, but be aware that they are virtually unusable as delivered from the manufacturer, and require a fair amount of machine work to fix them, but once sorted out, they're a decent head for the money.


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post #3 of 33 (permalink) Old 09-01-2016, 09:44 AM
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Depending on where you are in SoCal, I have used Dugans for most of my machine work. They have always done a great job. They are not like the 'average mass production' machine shop. They are in Riverside.
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post #4 of 33 (permalink) Old 03-15-2017, 10:36 AM Thread Starter
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Quote:
Originally Posted by RayDav View Post
I am building a 55 wagon and am setting it up as a tow vehicle. It will probably never see 5K RPM, and must run on regular gas.
The engine has grown a little. I got a short block with a pair of loose Trick Flow heads. As best I can understand, TF started with CJ, which has the exhaust port the shape of a stock port but is raised, and then raised the floor, so it is sorta flattened on the bottom.

I am having a challenge acquiring header parts. First the flanges are a challenge. I have decided to add a pair of small turbos. So the head stubs need to turn 90 degrees straight up. That actually makes the start of the header easier, but not trivial. Because, there are a couple upper control arms involved. So I need 90 degree stubs with a 3 inch OUTSIDE radius. That does exist, but I am having trouble bringing it all together.

The car is here:
https://photos.google.com/album/AF1Q...q6RnRU5H47VMjT
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post #5 of 33 (permalink) Old 03-15-2017, 10:45 AM
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What the hell are you planning to tow with this thing.....an M1 Abrams tank?


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post #6 of 33 (permalink) Old 03-15-2017, 12:36 PM
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Cool

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What the hell are you planning to tow with this thing.....an M1 Abrams tank?


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Bwahaha Carl made a funny.




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post #7 of 33 (permalink) Old 03-15-2017, 05:38 PM
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Quote:
Originally Posted by RayDav View Post
I am building a 55 wagon and am setting it up as a tow vehicle. It will probably never see 5K RPM, and must run on regular gas
Quote:
Originally Posted by RayDav View Post
I got a short block with a pair of loose Trick Flow heads.

I have decided to add a pair of small turbos.
OK.. These two quotes just don't belong on the same planet. I'm afraid you have left me no choice...



The first step in curing a horse power problem is admitting you have one. Lets face it... You secretly want to haul total a**!!

A Trick Flow headed twin turbo tow car?!?! ....I don't care who you are, that's funny right there. Now lets hear it. You WANT 7500 RPM!!

Once that is done The Mad Porter & Carl can lead you in the right direction.

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Last edited by MrScharfenberger; 03-15-2017 at 05:43 PM.
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post #8 of 33 (permalink) Old 03-16-2017, 07:23 AM
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Tow vehicle wagon doing a wheel stand "I'D LIKE TO SEE THAT"........lol

ps- go get them new afr heads from Carl or Mad Porter and build a torque n/a monster with 545ci.
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post #9 of 33 (permalink) Old 03-16-2017, 09:39 AM Thread Starter
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Did anyone look at the pictures? Does this look like a drag car?
https://photos.google.com/share/AF1Q...RtVGhxY2IxZWtn

My wife is a first grade teacher. Her daily driver is a 73 Mach 1-460.

https://photos.google.com/album/AF1Q...Pbc7Sf7YLjplkO

For times when she needs a bigger car we have a 76 Montego wagon - 460. The thing with the 55 wagon all started about a decade ago when CA - Sierra Club and Schwarzenegger - decided they would SMOG check my 76 Montego wagon forever. So we decided to get something sufficiently grandfathered.

Except that building it never got to the top of the list. But then we did the 2014 Mustang 50Th anniversary Pony drive and the 2015 an 2016 Power Tours in a 65 Mustang convertible, and decided we needed a classic with more space. So the 55 went into work.

And yes the engine has evolved a bit. The overall car is intended to be docile around town, not need to get towed if one rear wheel gets off in our desert sand, or occasional snow, but not slow down pulling a trailer at 11.5K ft.

But right now my issue is headers.

Last edited by RayDav; 03-16-2017 at 09:47 AM.
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post #10 of 33 (permalink) Old 03-16-2017, 10:37 AM
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It does bring up an interesting question tho.

If you were going to build a vehicle, lets say 4,000lbs with a 521 or 545 engine, and it was to be a daily driver, doing all the boring daily driver duties. So figure a smallish cam with lets say .550 max lift for durability reasons.

Which heads would you think would perform the best?
Obviously D3 and D0VE heads are well suited for this, but the gut feeling is start with an aftermarket head if the stock heads need any work.

Do any of these aftermarket heads produce good velocity in the 1500-3000rpm range? If so which would be best?
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post #11 of 33 (permalink) Old 03-16-2017, 11:22 AM Thread Starter
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If you were going to build a vehicle, lets say 4,000lbs with a 521 or 545 engine, and it was to be a daily driver, doing all the boring daily driver duties. So figure a smallish cam with lets say .550 max lift for durability reasons.

Do any of these aftermarket heads produce good velocity in the 1500-3000rpm range? If so which would be best?
Comp Cams roller 212 218 duration at .050 550ish lift and 114 lobe.

Cast stainless rockers on 7/16 studs.

The guy who built the short block understood the application, so I accepted his advice on the heads.

I have one possible hit on headers. I build in plastic, they copy in stainless, 6 weeks, $1800.
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post #12 of 33 (permalink) Old 03-16-2017, 03:33 PM
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I use the Trick Flow 290 heads on my "tow vehicle", they work very well for low rpm/torque builds. I don't recall seeing anything about your pistons/compression on this build. If your going to run pump gas you want to be under 10:1. So the piston style needs to be known in order to select the proper chamber size for your heads.

I think the cam you listed is too small for your build (if it is naturally aspirated). If your adding turbos, then I have no advise or opinion to offer).

Good luck. And more pictures please.

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post #13 of 33 (permalink) Old 03-16-2017, 05:54 PM
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Quote:
Originally Posted by RayDav View Post
Did anyone look at the pictures? Does this look like a drag car?
https://photos.google.com/share/AF1Q...RtVGhxY2IxZWtn
When I clicked on the link yesterday in post #4 I got a page error and no pictures so I couldn't see it. This new link you posted worked. And yes... It does looks like a drag car to me. But then again they all do. It has WAY more character than my drag car.

I'll have to follow along with what you are doing. It should be cool in the end. You ought to start a build thread in the Car Buildup Forum.

And I didn't say this looked like a drag car. I said you secretly wanted to haul a$$. A twin turbo 500++ cubic inch big block Ford doesn't tow things. It EATS Chevys.

I love the car. Lots of character.

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post #14 of 33 (permalink) Old 03-16-2017, 08:58 PM
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Company I worked for did a single turbo build for Ford in a 69 Tbird
Comp was 7.5 allowed use of pump gas. 10# of boost stock heads a turbo cam from Crane Harvy specked for us pulled 800 ft lbs of torq turned 11.2 quarters RPM limited to 5200 rear gear was a 3.08 G60 goodyears
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post #15 of 33 (permalink) Old 03-17-2017, 08:37 AM
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Two things:

1. I think you're underestimating the power of a naturally aspirated stroker.

2. If this thing is really going to be used for towing, you're headed in the wrong direction with those TF290 heads. You're not going to be able to get the compression low enough with that 4.500 crank, and then adding turbos to the mix is only going to make matters worse. Unless you enjoy sitting on the side of the road waiting for the engine to cool down, some large chamber heads would be a much better choice.


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