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Search found 1349 matches

by CNC-Dude
Wed Feb 04, 2009 12:29 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Port divider welded to the header flange
Replies: 10
Views: 1107

Airflow into and out of an engine is extremely sensitive to changes of this type, and if he still feels compelled to attempt to do this, should do so with the aid of a flow bench to comfirm that indeed there is a significant difference in flow between the larger port vs. the smaller ones to warrant ...
by CNC-Dude
Wed Feb 04, 2009 1:19 am
Forum: 144-250 "Small Block" Six Performance
Topic: Port divider welded to the header flange
Replies: 10
Views: 1107

Why would you think the ports need to be divided....are they siamesed or individual runner! The only reason an exhaust port should be or need to be divided is if you are building a killer Flathead V8, these have the center exhaust port siamesed, and the 90 degree firing of the two cylinders that sha...
by CNC-Dude
Tue Feb 03, 2009 6:49 pm
Forum: Aussie Ford Sixes
Topic: Carb problem with Aussie head
Replies: 4
Views: 1237

Many inlines use phenolic spacers as heat barriers, or even EGR spacers under their carbs, so maybe its assumed that the end user will also install something to compensate for the interference issues you are experiencing. Many times spacers are good, in that they often raise a carb up and create a b...
by CNC-Dude
Tue Feb 03, 2009 11:55 am
Forum: Fuel Injection - Mega Squirt
Topic: Ran into a problem I did not expect with the 200 log head
Replies: 27
Views: 6033

Holley and other companies im sure offer a tool to machine aluminum,steel and cast iron to form the receiver portion of an injector body. I think your fuel rail idea would be the most practical and cost effective method for attempting this, and you could do it yourself. You also could make a steel b...
by CNC-Dude
Mon Feb 02, 2009 9:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 custom made valve cover HOW?
Replies: 20
Views: 6179

Re: 300 custom made valve cover HOW?

Problem - I Want a custom finned valve cover (Not the only one available) and Given that we don't seem to be able to get cast covers off the ground due to expense of foundry work.blah blah blah I'm building a furnace-but for now>>>>>> ??? HOW DID THEY DO THIS??? Looking at the gasket lip this looks...
by CNC-Dude
Wed Jan 28, 2009 1:08 pm
Forum: 144-250 "Small Block" Six Performance
Topic: threaded coolant port
Replies: 14
Views: 1647

I've made many thermostat housing spacers for inlines that allow the user to put a fitting into it to route water to the intake when replacing the intake from exhaust heated to water heated, and you could do the same, as it will give you the temp behind the thermostat on the front side of the head. ...
by CNC-Dude
Wed Jan 28, 2009 11:47 am
Forum: 240-300 "Big Block" Six Performance
Topic: pic of 300 with 327 chevy pistons
Replies: 42
Views: 7961

350 has a comp. hgt. of 1.560" and the 327 has 1.675" comp. hgt. both with a 5.700' rod length and .927 wrist pin size....
by CNC-Dude
Tue Jan 27, 2009 11:15 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

I've got no real desire to pony up and do a CNC head , im just offering to help you since you started the topic and it would benefit you since you have an end use for it. Plus, it could open many doors of opportunity for you, should you choose to persue this deeper as a hobby or profession.
by CNC-Dude
Tue Jan 27, 2009 11:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: pic of 300 with 327 chevy pistons
Replies: 42
Views: 7961

There are actually (2)different 300 rods that could be used. The early rods have a .912 wrist pin in them, which is the same as the SBF. The later rods have a .975 wrist pin, which makes installing a bushing in them very easy, without having to do any additional machine work. Then you can pin fit th...
by CNC-Dude
Tue Jan 27, 2009 10:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

well in my class i have to port all 12 ports and flow all of them...so im mark down with one was the best...so when i take the head back off the truck ill split the best ports and put them up on the cmm. What im saying is ,I can send you a ported intake and exhaust port as a sample for you to copy ...
by CNC-Dude
Tue Jan 27, 2009 9:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

my plain on the cnc ported heads was just to scan my head make the tool paths and give it to you all....you would have to find a machine shop to mill it for you but that shouldnt be to hard. so the CNC head would be free up in till you want to cut it. i no right off hand cnc-dude could cut his own....
by CNC-Dude
Mon Jan 26, 2009 9:33 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

[/quote] But you also have to consider that you may have to chase that market sometimes.Not everyone buys the same car mags that you may have articles in or pursue stuff on the internet. In my experiences in the past you NEED to go to them in their respective areas to get your products known to that...
by CNC-Dude
Mon Jan 26, 2009 2:05 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

Going back on FSP a few years, I had mentioned the possibility that I would be able to get a cast finned aluminum valve cover developed for the 240-300. A neighbor has a foundry and was very interested in doing it. Another member had machined finned side covers that he was offering. In both cases, ...
by CNC-Dude
Mon Jan 26, 2009 12:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

... there wasn't any interest by anyone here to speak of! Yup. The way I see it, most of us here are more inclined to use our 300's as daily drivers and working vehicles rather than all-out racing engines. Fully hogged out racing heads just don't fit into that scenario. Reckon that's just the way i...
by CNC-Dude
Sat Jan 24, 2009 2:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

TCIC 300ci superbeast wrote:i wasnt planing on taking the ports to the extreme. this will be a street/off road motor. for now the motors going to have an all stock bottom end.. so just the head work and 7psi.
Im sure you should be able to make some good improvements....
by CNC-Dude
Fri Jan 23, 2009 6:22 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 head flow#
Replies: 54
Views: 8234

id like to port it and then take it to a CMM and get the port in a digital format for any one who wants a CNC ported head. inline300 started a thread not long ago about someone in the CNC industry that had shown an interest in doing just that with the 300's and other Ford 6's. That person also has ...
by CNC-Dude
Wed Jan 14, 2009 12:02 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Obtaining the proper compression ratio
Replies: 18
Views: 2759

Don't forget that cutting the head or block that much to arrive at your projected compression will require you to replace the pushrods with custom length ones to restore the correct geometry to the valve train. Just in case you haven't thought that far ahead....Also, since your making the valves com...
by CNC-Dude
Fri Jan 09, 2009 1:03 am
Forum: 144-250 "Small Block" Six Performance
Topic: Larger valves and porting questions
Replies: 5
Views: 998

When hand porting instead of CNC porting, you would take an old pair of valves and insert them into the head to protect the seats after the valve job is done as you grind in the chamber area! As far as grinding in the bowl area, you usually cut that area oversize with a bowl cutter in a machine and ...
by CNC-Dude
Fri Jan 02, 2009 12:04 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

cnc-dude that a good idea of using the laser cutter.... that cool that you have a pallet changer. and just have one siting there for playing. i wish we had that. all most of our machines have the same fixture. most of the stuff we make is the same or just a diff. size. you herd of carrlane right? a...
by CNC-Dude
Sun Dec 14, 2008 9:50 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

I guess that is why you should never assume anything. I thought you were thinking aluminum plate, and you thought I was thinking steel plate. But since you mentioned steel, you also brought another possibility entirely, and that is laser cutting the plate. And just using some form of fixture you men...
by CNC-Dude
Sat Dec 13, 2008 10:43 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

I was looking at it from a manufacturers stand spoint, because thats what I do. If you were just going to make a one-off, then you might fashion a jig to keep from having to break down a set-up, and use a Bridgeport or drill press,or wait until one is being changed over to another job and slide it i...
by CNC-Dude
Sat Dec 13, 2008 1:38 am
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

When you have done CNC for 20 years like I have it doesn't get any simpler, for me anyway!
by CNC-Dude
Sat Dec 13, 2008 1:12 am
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

Chromium plating is at least as hard as bearing races, if not harder. So again, I'm considering whether a reground iron camshaft core with chromed lobe surfaces would survive in a roller application. Spring pressure would be low, and the chrome plating should eliminate any wear issues of the soft c...
by CNC-Dude
Sat Dec 13, 2008 12:42 am
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

You need to hold a lot closer tolerance for the holes that have the dowels than you could ever do with a drill press. Your center-to-center holes for the dowels in relation to the crank centerline is also very critical. Most CNC shops have a modest $80-$100 an hour shop rate for production parts. Yo...
by CNC-Dude
Fri Dec 12, 2008 7:02 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

Those are all good points, but the product of interest would be a bellhousing adapter and not an actual bellhousing! It would be as pictured in the original post. A product that is CNC machined and also would be a product that very little R&D expense would be required. If I had the two bolt patt...
by CNC-Dude
Wed Dec 10, 2008 10:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

Yep, thats me! My cam grinder told me the simplest way to make the billet without any blueprint or drawing,was to make a special pointed pin to fit into each lifter bore. And place a stock cam in a block, and rotate the cam to transfer a scribe mark to create a lobe/lifter bore centerline reference....
by CNC-Dude
Wed Dec 10, 2008 5:31 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

Ok,thats not too bad! I saw on here somewhere that a person bought a Clay Smith roller cam and said it set him back $1500 bucks. Maybe he meant for cam,lifters, rockers,etc. Even though he didn't specify what all he got for that price.
by CNC-Dude
Wed Dec 10, 2008 12:15 pm
Forum: Brakes, Wheels, and Tires
Topic: wheel bearing stuck in housing
Replies: 7
Views: 1135

I had a similar problem with a front wheel bearing on an 68 LTD. I had a 10 lb. short sledgehammer and could really get a good swing on it with a big size drift pin, and it would't budge. This should work for you as well. Pack some rags into the axle tube, and using a mig or stick welder, run a bead...
by CNC-Dude
Wed Dec 10, 2008 11:54 am
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

Because the bronze shavings(particles) are less harmful to the engine when the gear wears away. The cast gears will trash the engine bearings as it wears away and travels through the oiling system. The bronze gear was designed as an expendable wear item. I guess the cam companies figured it was chea...
by CNC-Dude
Tue Dec 09, 2008 11:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

Roller cam billets are made from 8620 steel, and once heat treated is extremely hard, almost like a bearing race! Hydraulic and solid flat tappets are cast iron and very soft in comparison and cant be made to be used as a roller....
by CNC-Dude
Thu Dec 04, 2008 6:08 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Push Rods
Replies: 3
Views: 822

Yes, if they are cutting the head and block, they should be able to determine what your needs are....but if the combined cuts for both exceed about .040 or so, I would check the geomery with an adjustable pushrod just to be certain!
by CNC-Dude
Thu Dec 04, 2008 2:10 pm
Forum: 144-250 "Small Block" Six Performance
Topic: How to remove emulsion tubes from Weber DGV?
Replies: 5
Views: 811

The emulsion tubes are extremely sensitive to scratches and burrs along the inside and outside of their bodies. Thank you for not just jumping in there and yanking them out, but proceeding cautiously as you are! I would try soaking them with WD-40 or some other type of penetrating oil to help releas...
by CNC-Dude
Thu Dec 04, 2008 1:48 am
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

You know, for the 215/223/262 & flathead six this might be an idea. I realise that they are a small part of our group here, but for them, the ability to use a more modern transmission/bellhousing/clutch might be a handy thing for them. Edwin Would you be thinking of using a 302 type bellhousing...
by CNC-Dude
Thu Dec 04, 2008 1:47 am
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

You know, for the 215/223/262 & flathead six this might be an idea. I realise that they are a small part of our group here, but for them, the ability to use a more modern transmission/bellhousing/clutch might be a handy thing for them. Edwin Would you be thinking of using a 302 type bellhousing...
by CNC-Dude
Wed Dec 03, 2008 1:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Push Rods
Replies: 3
Views: 822

Just depends on how much has to be decked off of the block to arrive at 0 deck, plus how much additionally is removed from the head! Those 2 numbers added together will determine if you are in the clear, or have exceeded a safe margin for trying to stay with the stock length. Also, dont assume that ...
by CNC-Dude
Tue Dec 02, 2008 2:58 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Question related to rebuild
Replies: 8
Views: 1120

You probably would want to block off the original oil path thru the head to the rocker shaft. Because your new found oil path thru the pushrods will likely create excessive pressure bleed-off if it continues to travel both routes....
by CNC-Dude
Sat Nov 29, 2008 4:49 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Forged Question
Replies: 23
Views: 2078

On all the Ch*vy Comp Eliminator 292's inlines i've done, they also have a head gasket as the weak link. With only 4 bolts per cylinder, and a 7/16" head bolt, once compression starts to rise above 13 or 14:1, even O-ringing the block alone doesn't cure it. One thing we found that did virtually elim...
by CNC-Dude
Sat Nov 29, 2008 4:18 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Finally heard back from Clay Smith on turbo cam...
Replies: 9
Views: 1123

What is going to be your main objective with the engine,street/strip, street only, race only? How radically is it modified in conjuction with the camshaft such as compression, porting yes/no, larger valves yes/no, headers, induction...etc, what operating RPM range are you seeking also. Thanks....
by CNC-Dude
Fri Nov 28, 2008 6:59 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 2 1/4" duals or single 3"?
Replies: 46
Views: 5854

Alright, now here's my next question...or 2... I don't want to run the stack through my bed as it would keep me from using the cap when needed. I want to run the stack up the side of the bed on the passenger side with maybe a guard on it (more than likely will end up with a guard on it). 1) How cou...
by CNC-Dude
Thu Nov 27, 2008 7:03 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Forged Question
Replies: 23
Views: 2078

The best 300 rods to use are the ones that do not have the "spit" holes in them. I have used many of them to build budget "long rod" 351W's for circle track engines, and also several 400 cube stroker 351's. They have performed well for these engines in the 500HP range with modest RPM(6-6500). I thin...
by CNC-Dude
Tue Nov 25, 2008 10:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roller rockers?
Replies: 28
Views: 3653

I think more benefit would be gained by having all 12 rockers producing the same net lift at the valve by having a true 1.5,1.6, or 1.7 ratio instead of a 1.46 or 1.47 on a 1.5 ratio and so on with a stamped rocker! That coupled with the advantages of friction losses might together add up to somethi...
by CNC-Dude
Tue Nov 25, 2008 9:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

http://fordsix.com/forum/viewtopic.php?t=42347&postdays=0&postorder=asc&start=0 Check that thread out for projected hp/tq of various combinations. IIRC my DD results came up with 222 hp right at 300# tq with the 260 cam and a 600 cfm Holley. Yep, I was thinking something more in line wi...
by CNC-Dude
Tue Nov 25, 2008 5:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 250hp/350 ft/lbs?
Replies: 49
Views: 6612

Most any modern day engine can fairly easily produce 1 HP per cubic inch with the components we have available. I have done many of the Cheby equivalents to the 300, and have even had some that made 612 HP for competition in NHRA Comp Eliminator Naturally Aspirated. But I think your torque expectati...
by CNC-Dude
Tue Nov 25, 2008 4:22 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

cargeke wrote:If someone does have those specs, I've got CAD and a lot of spare time.
That would be neat, I've got a really awesome CAM software package and could generate the program with no trouble....
by CNC-Dude
Mon Nov 24, 2008 12:22 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

If others could help with bolt pattern specs, I could contribute to the cause as well....
by CNC-Dude
Sat Nov 22, 2008 11:15 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

The countersink bolts can be a problem. I have lots of experience with these. The real design flaw is the added surface area from the angled surface, doesn't allow you to torque the bolt correctly. This results in the bolts working loose. They can be installed fairly well with neversieze, but they ...
by CNC-Dude
Fri Nov 21, 2008 12:06 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Need info about the Argentine Head
Replies: 7
Views: 1762

If you wanna chat with me just add my MSN: josedelvecchio@hotmail.com I have a lot of argie SP head information: valves sizes, camshaft, crank, ilustrations, everything you can imagine, but i'll be very busy a couple of weeks, so i can't help you with the translation. This is a stock SP head, with ...
by CNC-Dude
Thu Nov 20, 2008 6:14 pm
Forum: Transmission & Drivetrain
Topic: Why couldnt we do this for the Inline six?
Replies: 50
Views: 6398

Asa wrote:although honestly, it should be pretty easy to do...
who here has CAD?
A part that simple wouldn't even need CAD! It is a good idea and would allow a lot of possibilities for eng./tranny swaps.... :D
by CNC-Dude
Thu Nov 20, 2008 1:24 pm
Forum: 240-300 "Big Block" Six Performance
Topic: CNC PORTED OE CYLINDER HEADS
Replies: 14
Views: 2730

Well, if I understand this computer machining, the time goes into getting the program correct. then its on autopilot, with the initial cost amortizing as the heads get done. When its not in use, it costs no $...... So, say.....the program/setup costs are all paid for w/ the first 100 heads. Everyth...

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