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Search found 1404 matches

by CNC-Dude
Thu Jul 02, 2020 10:19 am
Forum: 240-300 "Big Block" Six Performance
Topic: Clifford 43-4502 4V 240/300 Intake Bolt Pattern ??????
Replies: 3
Views: 41

Re: Clifford 43-4502 4V 240/300 Intake Bolt Pattern ??????

Some were originally made to fit the early WCF style carbs. They were smaller CFM's and ideal for inline engines.
by CNC-Dude
Wed Jul 01, 2020 9:04 am
Forum: Aussie Ford Sixes
Topic: Header flanges for US Crossflow owners
Replies: 50
Views: 11982

Re: Header flanges for US Crossflow owners

Just you so far! I made a new post in the X-flow section and have had almost 600 views, but no one else commented. I'll contact my water jet guy and see what his lead time is and go ahead and see what his minimum order is as well.
Thanks
by CNC-Dude
Wed Jul 01, 2020 8:59 am
Forum: 144-250 "Small Block" Six Performance
Topic: Oil Pump Clearance / ARP Main Studs
Replies: 6
Views: 138

Re: Oil Pump Clearance / ARP Main Studs

That's common on most all Ford engines using ARP main studs, even most V8's. It is perfectly acceptable to grind or machine the stud shorter to where no threads stick out past the nut when torqued and grind clearance on the pump body. During the 5.0 Mustang craze, all of them had to be done that way...
by CNC-Dude
Sat Jun 06, 2020 6:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: unshrouding to head gasket and bore
Replies: 10
Views: 262

Re: unshrouding to head gasket and bore

Yes, bad idea as pmuller said. You never use the head gasket to open the chamber up to. Bolt the head to the block and flip it upside down and scribe on the heads deck surface using the bore as the boundary, not the gasket.
by CNC-Dude
Sat May 30, 2020 10:40 am
Forum: 240-300 "Big Block" Six Performance
Topic: For those of you who were at Ford, when the boss 429...
Replies: 26
Views: 800

Re: For those of you who were at Ford, when the boss 429...

sdiesel wrote:I'm a bit vague on what makes it unique.


It was a HEMI.....!
by CNC-Dude
Mon May 25, 2020 11:07 am
Forum: Aussie Ford Sixes
Topic: 2v milling
Replies: 1
Views: 149

Re: 2v milling

Most cylinder heads can take a .030" cut without issues. How much do you need to cut to go from 51cc's to 48cc's?
by CNC-Dude
Mon May 25, 2020 11:04 am
Forum: 240-300 "Big Block" Six Performance
Topic: Oil coolers and pressure drop calculations
Replies: 18
Views: 617

Re: Oil coolers and pressure drop calculations

Every 90° bend in your oil lines or fittings adds 10° more oil temp. So don't go crazy with fittings and use 135° fittings where ever you need to use a fitting.
by CNC-Dude
Mon May 25, 2020 10:57 am
Forum: 144-250 "Small Block" Six Performance
Topic: Building My Aussie 250 2V
Replies: 37
Views: 913

Re: Building My Aussie 250 2V

Without seeing receipts to verify what machine work was done, its hard to determine the value of an item. Assuming the parts were all new when he purchased them, then the cost of those parts would likely be close to the asking price he wants. But when it come to things like regrinding the crank vs. ...
by CNC-Dude
Fri May 22, 2020 10:40 am
Forum: 144-250 "Small Block" Six Performance
Topic: Clifford Performance
Replies: 10
Views: 441

Re: Clifford Performance

Back before the hotsixes.com forum shut down in Oz, there was a member named xrglen that was an engine builder and head porter there in Oz. He had many dozens of build threads of 250 engines he built for his customers that made 400-450 HP naturally aspirated. They did have crossflow heads, but it ju...
by CNC-Dude
Thu May 21, 2020 8:50 am
Forum: Aussie Ford Sixes
Topic: CROSSFLOW HEADER FLANGES....
Replies: 2
Views: 591

Re: CROSSFLOW HEADER FLANGES....

Still waiting for a few more to join in.....
by CNC-Dude
Mon May 18, 2020 9:11 am
Forum: 240-300 "Big Block" Six Performance
Topic: Aussiespeed Manifold
Replies: 4
Views: 282

Re: Aussiespeed Manifold

That's one issue people on other forums have mentioned about the AussieSpeed products, they don't have any guidelines as to what RPM range any of their intakes are designed for, unlike Edelbrock and most other US manufacturers. So you are just taking a stab in the dark hoping it will fit your needs.
by CNC-Dude
Sat May 09, 2020 10:49 am
Forum: 240-300 "Big Block" Six Performance
Topic: Valve cover spacer
Replies: 19
Views: 2102

Re: Valve cover spacer

Thanks for re-clarifying which style valve cover needs in the way of the number of gaskets and why!
by CNC-Dude
Fri May 08, 2020 10:51 am
Forum: 240-300 "Big Block" Six Performance
Topic: Turbo 240 bit the dust. Hole in the block.
Replies: 47
Views: 3592

Re: Turbo 240 bit the dust. Hole in the block.

Phase3 wrote:
Do you think ill be able to see visual galling in the piston wrist pin bores?

You will have no problem seeing evidence of pin galling in the pin bores....
by CNC-Dude
Wed May 06, 2020 5:19 am
Forum: 240-300 "Big Block" Six Performance
Topic: Valve cover spacer
Replies: 19
Views: 2102

Re: Valve cover spacer

Yes, its compatible with your combo. I think you will only need just 2 gaskets, but you'll need to comfirm.
by CNC-Dude
Tue May 05, 2020 4:22 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Degreeing the cam
Replies: 4
Views: 438

Re: Degreeing the cam

Its tricky sometimes because the lifter bore isn't always perpendicular to the deck, so you have to make sure your indicator follows the path of the lifter, and have it as straight as possible or that can skew your readings on the dial indicator. Using a hydraulic lifter isn't a problem if you have ...
by CNC-Dude
Mon May 04, 2020 8:43 am
Forum: 144-250 "Small Block" Six Performance
Topic: Modifying Stainless Header
Replies: 47
Views: 2116

Re: Modifying Stainless Header

Georgia200 wrote:Someone here must be able to autocad the pattern. Will aluminum hold up to the heat without warping?

I have header flange drawings in CAD somewhere. I'll look.
by CNC-Dude
Sat May 02, 2020 8:45 pm
Forum: 144-250 "Small Block" Six Performance
Topic: MSD Pro Billet-style distributor for use with EFI?
Replies: 23
Views: 1195

Re: MSD Pro Billet-style distributor for use with EFI?

They also make one for the Chevy inline 6 also. I would modify the MSD guts to fit into the stock 200 housing. Trying to hack and weld could be questionable,while just doing some shaft shortening(assuming the Jeep one is longer), will be more of an acceptable mod. I've even thought about making some...
by CNC-Dude
Wed Apr 29, 2020 10:31 am
Forum: Aussie Ford Sixes
Topic: CROSSFLOW HEADER FLANGES....
Replies: 2
Views: 591

Re: CROSSFLOW HEADER FLANGES....

Need several more to commit so this can happen!
by CNC-Dude
Wed Apr 29, 2020 10:26 am
Forum: 144-250 "Small Block" Six Performance
Topic: Modifying Stainless Header
Replies: 47
Views: 2116

Re: Modifying Stainless Header

Your problem starts way before the collector. In the above pics, you have several inches of clearance between the frame and tubes before the collectors come together. If the primary tubes weren't bent out of the header flange so sharp, then the collector would have more clearance around the starter....
by CNC-Dude
Wed Apr 29, 2020 10:06 am
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

Only one day left to take advantage of free shipping before these are discontinued! Also, only (2)spacers left, after tomorrow, I will not be making them anymore....
by CNC-Dude
Tue Apr 28, 2020 5:58 pm
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

Steve, your package will ship on Wednesday! Thank you....
by CNC-Dude
Mon Apr 27, 2020 11:56 am
Forum: Vintage Ford Sixes
Topic: Any interest in a new dual carb intake?
Replies: 56
Views: 16520

Re: Any interest in a new dual carb intake?

I can make the patterns myself. The problem I'm having is finding a local foundry to cast something this large. I may investigate them, thanks!
by CNC-Dude
Mon Apr 27, 2020 5:13 am
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

Yes, PM sent!
by CNC-Dude
Sun Apr 26, 2020 1:15 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Forged or billet rods?
Replies: 9
Views: 678

Re: Forged or billet rods?

Also, V8 rods only have a chamfer on one side of the B/E for radius/filet clearance,so you will have to chamfer the other side before using them. If the are offset, you can also just trim the side of the S/E to keep it from rubbing inside the piston pin boss.
by CNC-Dude
Thu Apr 23, 2020 2:14 pm
Forum: Vintage Ford Sixes
Topic: Any interest in a new dual carb intake?
Replies: 56
Views: 16520

Re: Any interest in a new dual carb intake?

Nothing on the intake. I was having problems finding a foundry to cast such a long piece. That has also made my valve cover project stall also. Shorter pieces are no problem.....
by CNC-Dude
Tue Apr 21, 2020 3:44 pm
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

9 more days before these go away for good!
by CNC-Dude
Sun Apr 19, 2020 10:46 am
Forum: 240-300 "Big Block" Six Performance
Topic: Valve cover spacer
Replies: 19
Views: 2102

Re: Valve cover spacer

It's a magneto, not a regular distributor....
by CNC-Dude
Sat Apr 18, 2020 8:53 am
Forum: 240-300 "Big Block" Six Performance
Topic: 5 PSI, now severe blowby
Replies: 66
Views: 3190

Re: 5 PSI, now severe blowby

Assuming I go with the H519P pistons, I found the Sealed Power E-229K moly rings that look like they fit the bill. I also found Brush Research part number GBD414400, which is a 400 grit ball hone in the 4-4.25" range. Moly rings need a finish using a 625 grit stone. So 400 is still too rough. ...
by CNC-Dude
Fri Apr 17, 2020 10:40 am
Forum: Aussie Ford Sixes
Topic: CROSSFLOW HEADER FLANGES....
Replies: 2
Views: 591

CROSSFLOW HEADER FLANGES....

After a lot of renewed interest in this subject, I am asking for a head count of people that are serious enough to committing to purchase a Ford Crossflow header flange. So far I have one forum member that is ready and i'm sure there are others that are as well. Just let me know either by commenting...
by CNC-Dude
Thu Apr 16, 2020 3:11 pm
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

Stimulus checks should be out now, so take advantage while this limited supply lasts....
by CNC-Dude
Sun Apr 12, 2020 1:59 pm
Forum: Aussie Ford Sixes
Topic: Header flanges for US Crossflow owners
Replies: 50
Views: 11982

Re: Header flanges for US Crossflow owners

Thank you! I'll let this go on for a week or so for others to chime in and decide.

Thanks
by CNC-Dude
Sun Apr 12, 2020 10:20 am
Forum: 240-300 "Big Block" Six Performance
Topic: Aussie speed intake manifold and valve cover.
Replies: 37
Views: 3615

Re: Aussie speed intake manifold and valve cover.

You need to ream the hole to its final size and not just drill it. A drill bit will not make a round hole or leave a good enough finish to seat the o-rings for the pressure they are under because they will flex and move. I've been a machinist for 35 years now, are these are things you gain from expe...
by CNC-Dude
Sun Apr 12, 2020 9:31 am
Forum: 240-300 "Big Block" Six Performance
Topic: Aussie speed intake manifold and valve cover.
Replies: 37
Views: 3615

Re: Aussie speed intake manifold and valve cover.

I wonder if somebody makes a stepped drill/reamer to open the bosses precisely for the injector fitment? Greg, I've been doing a lot of custom EFI machining for the last 5 or so years for the local drag racers and I just drill and ream the intakes and fuel rails for the injectors with common drills...
by CNC-Dude
Sat Apr 11, 2020 2:40 pm
Forum: Aussie Ford Sixes
Topic: Header flanges for US Crossflow owners
Replies: 50
Views: 11982

Re: Header flanges for US Crossflow owners

Ok, I found my X-Flow Header flange file. So I want to know who all can seriously commit to purchasing one? They will be in the $60-ish range plus $9.99 shipping. I may require a small, non refundable deposit from those interested due to several non responders from other custom parts requested in th...
by CNC-Dude
Thu Apr 09, 2020 9:48 am
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

At the end of April 2020, I will be discontinuing these!
by CNC-Dude
Sun Apr 05, 2020 3:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: How would you spend $800 towards a new head?
Replies: 30
Views: 1572

Re: How would you spend $800 towards a new head?

Just keep the work on the simple side. No need to concern yourself with the higher ratio rockers. It likely you'll not notice any performance gain since the rest of the engine is stock. Definitely install new valves and make sure that the valve guides are not knurled, but actually sized correctly, e...
by CNC-Dude
Sat Apr 04, 2020 11:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240/300 Copper Head gasket
Replies: 15
Views: 1195

Re: 240/300 Copper Head gasket

What kind of cylinder pressure on a 300 block with a big valve 240 head that is naturally aspirated handle without o-ringing the head or block using only copper coated Flatout copper head gaskets? Is 12 - 14:1 doable on a race motor? Copper head gaskets require o-rings to seal combustion pressures ...
by CNC-Dude
Sat Apr 04, 2020 6:55 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240/300 Copper Head gasket
Replies: 15
Views: 1195

Re: 240/300 Copper Head gasket

12:5-1 is likely safe, but keep in mind the Ford 240/300 only has 7/16 head bolts while the Chevy and Chrysler uses 1/2. So proceed cautiously if you seek to go higher with compression.
by CNC-Dude
Sat Apr 04, 2020 11:16 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240/300 Copper Head gasket
Replies: 15
Views: 1195

Re: 240/300 Copper Head gasket

Forced Induction. Works with either block or head O-Ring. On this platform, which would be the better way to go, block or head ring? Without a receiver groove I guess, or with one if needed. Most on other platforms seem to like the ring in block to keep from having to redo the head groove when deck...
by CNC-Dude
Sat Mar 28, 2020 10:51 am
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

Free shipping while supplies last to help those that may be going through difficult times because of work cutbacks during these times!
by CNC-Dude
Tue Mar 24, 2020 4:43 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Degreeing the Cam
Replies: 7
Views: 1147

Re: Degreeing the Cam

StarDiero75 wrote:I double checked it, i was alightly off. It is at 109.5, so only 2.5 degrees advanced, thats where its staying


It's only .5°advanced, or close enough to call it on the money based on the cam cards recommended 110° on the intake!
by CNC-Dude
Tue Mar 24, 2020 4:41 pm
Forum: 144-250 "Small Block" Six Performance
Topic: Degreeing the Cam
Replies: 7
Views: 1147

Re: Degreeing the Cam

Its actually not 5° as mentioned above, your reading on the intake centerline of 107° is 3°advanced. The separation angle of 112°is fixed and cannot be changed without having the camshaft reground, and is not affected by advancing or retarding the camshaft.
by CNC-Dude
Tue Mar 24, 2020 4:14 pm
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Re: Ford 240/300 valve cover spacers....

I may not make anymore after these last few are sold, so if you think you may need one anytime in the future, better get one now.
by CNC-Dude
Fri Mar 20, 2020 2:03 pm
Forum: Buy, Sell, or Trade - Big Six
Topic: Ford 240/300 valve cover spacers....
Replies: 9
Views: 2201

Ford 240/300 valve cover spacers....

Only have a few left.....! $45 + $11.95 while supplies last. Paypal accepted!
by CNC-Dude
Sun Jan 12, 2020 9:40 pm
Forum: Aussie Ford Sixes
Topic: Header flanges for US Crossflow owners
Replies: 50
Views: 11982

Re: Header flanges for US Crossflow owners

I'll see if I can find my CAD file. It's been over 10 years since this thread was started. Thanks!
by CNC-Dude
Thu Jan 02, 2020 7:34 pm
Forum: Aussie Ford Sixes
Topic: Header flanges for US Crossflow owners
Replies: 50
Views: 11982

Re: Header flanges for US Crossflow owners

Nobody ever committed to place any orders....
by CNC-Dude
Mon Dec 30, 2019 2:07 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 rod beam clean up
Replies: 18
Views: 1880

Re: 240 rod beam clean up

It's not uncommon or rare to see this much deviation in weight on rod sets.
by CNC-Dude
Sat Dec 28, 2019 9:31 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 rod beam clean up
Replies: 18
Views: 1880

Re: 240 rod beam clean up

Yes, you can remove material from the balancing pad areas to lighten the rods, but rod balancing needs to be done before the big ends are reconditioned. It can and will heat and distort the housing bores. So the recon portion should be done last.
by CNC-Dude
Fri Dec 27, 2019 9:19 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 rod beam clean up
Replies: 18
Views: 1880

Re: 240 rod beam clean up

You will have to recondition the the big end housing bores of the connecting rods if you replace the bolt bolts. You have to physically measure the bearing clearances with dial bore gauges and the bearings torqued in the rods. Just measuring the bearing thickness and doing the math won't give you th...
by CNC-Dude
Mon Dec 09, 2019 8:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: concerning reamers and how to use them. please help .
Replies: 16
Views: 2075

Re: concerning reamers and how to use them. please help .

The front cylinder has a great deal of stress relieved from it when the water jacket side of the cylinder barrel is machined for water pump impeller clearance. It also is very thin compared to the rest of the wall thickness. Since the blocks aren't really stress relieved before being put into servic...

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