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Search found 146 matches

by Blairsville Ed
Tue Aug 20, 2019 8:25 am
Forum: 240-300 "Big Block" Six Performance
Topic: Quick jetting question Carter YF
Replies: 16
Views: 287

Re: Quick jetting question Carter YF

Carbs can be challenging at times! It this a large Carter YF? 1-3/4” throttle bore? They did make smaller YF’s. Make sure the basics are correct, Float height, float heavy No vacuum leaks Accelerator pump check ball present and seated properly It shouldn’t be running excessively rich with a.104 main...
by Blairsville Ed
Fri Aug 16, 2019 8:28 am
Forum: 240-300 "Big Block" Six Performance
Topic: Holley 5200 carb
Replies: 28
Views: 453

Re: Holley 5200 carb

I should have taken some pics but I did not. There were some pics on the Ford truck blog showing a guy milling the head. That’s where I got the idea from. I have 2 mounting blocks available if anyone is interested. The one on the left is for a Carter YF, the one in the middle is for the Holley 5200....
by Blairsville Ed
Thu Aug 15, 2019 7:19 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Holley 5200 carb
Replies: 28
Views: 453

Re: Holley 5200 carb

There’s a 3/8 stud on the opposite side with a backing plate on the bottom. I used standard 1/32 gasket material to seal. No additional sealer was needed. The cutout in the manifold was milled. No welding was needed. The 2 bolt holes are already there, you’ll need to install the threaded inserts. In...
by Blairsville Ed
Wed Aug 14, 2019 8:22 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Holley 5200 carb
Replies: 28
Views: 453

Re: Holley 5200 carb

I had to reverse the linkage lever on the carb, which put the pin on top. I then made an extension rod for the stock linkage.
by Blairsville Ed
Wed Aug 14, 2019 8:15 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Holley 5200 carb
Replies: 28
Views: 453

Re: Holley 5200 carb

heres a few pics
by Blairsville Ed
Mon Aug 12, 2019 2:18 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Holley 5200 carb
Replies: 28
Views: 453

Re: Holley 5200 carb

1968 F100. 240 It’s a 1968 F100 with a 240. I have put in the Chevy rocker arms, milled the deck to zero, milled the head .030, three angle valve job with some minor porting, efi exhaust, milled the intake and made an adapter plate. Gas mileage ... 15-16, the same as I got with the Carter YF. I thin...
by Blairsville Ed
Sun Aug 11, 2019 9:15 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Holley 5200 carb
Replies: 28
Views: 453

Re: Holley 5200 carb

1958 F100. 240 4 on the tree. 3.70 I’m currently running a Holley 5200. My question is..... has anyone installed a sync kit? It would convert the carb to a standard 2 barrel without the extra cost and work of installing a Motorcraft 2100. Just wondering if anyone has done this and how did it perform.
by Blairsville Ed
Sat Aug 10, 2019 10:56 am
Forum: 240-300 "Big Block" Six Performance
Topic: Quick jetting question Carter YF
Replies: 16
Views: 287

Re: Quick jetting question Carter YF

It runs on the primary up to about 2/3 throttle, then the larger secondary opens. I got the idea from the Jeep website. They’re running a 4.0 inline six, and the guys on the small block side of this blog also use them. Each barrel has a main jet, main air bleed and an idle jet. The idle air bleed is...
by Blairsville Ed
Fri Aug 09, 2019 9:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Quick jetting question Carter YF
Replies: 16
Views: 287

Re: Quick jetting question Carter YF

It looks like the Holley 5200 is around 280 cfm. It’s a staged 2 barrel with a small primary barrel. I find that the 240 works well with a light load. The staged 2 barrel has a nice kick when the secondary opens. When you put a load on the 240, like towing a small boat, the bigger carb doesn’t help ...
by Blairsville Ed
Fri Aug 09, 2019 7:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Quick jetting question Carter YF
Replies: 16
Views: 287

Re: Quick jetting question Carter YF

I swapped my Carter out last year for a Holley 5200 staged 2 barrel. There’s a lot of jetting choices with the 5200 and I was struggling with the correct mixture, so , I welded in a bung and got a basic narrow band O-2 sensor. You can read these with a voltmeter. It’s not as accurate as a wide band ...
by Blairsville Ed
Thu Aug 08, 2019 5:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Quick jetting question Carter YF
Replies: 16
Views: 287

Re: Quick jetting question Carter YF

I have a 1968 F100 with a 240

I spent a lot of time working on the jetting with my Carter YF.
It came with a .104 main jet. The leanest jet I could run was a .102. The metering rod adjustment will not over come a .091 jet. ( in my opinion)
by Blairsville Ed
Sat Aug 03, 2019 9:03 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 cooling fan
Replies: 7
Views: 391

Re: 240 cooling fan

I went with a 6 blade nylon fan, mounted 7/8 inch from the radiator. Over heating issue cured. In retrospect, I caused my overheating problem by adding a clutch unit to the existing steel fan without adding a shroud. The clutch moves the fan blade away from the radiator which necessitates using a sh...
by Blairsville Ed
Sun Jul 28, 2019 7:13 pm
Forum: Transmission & Drivetrain
Topic: 3 on the tree to a 4 on the tree
Replies: 13
Views: 708

Re: 3 on the tree to a 4 on the tree

Update with in dash reverse cable mount
by Blairsville Ed
Thu Jul 25, 2019 10:02 am
Forum: 240-300 "Big Block" Six Performance
Topic: PCV valve
Replies: 3
Views: 203

Re: PCV valve

It’s new
by Blairsville Ed
Thu Jul 25, 2019 7:29 am
Forum: 240-300 "Big Block" Six Performance
Topic: PCV valve
Replies: 3
Views: 203

PCV valve

1968 F100, 240, 4 on the tree or quad on the rod

Has anyone had the PCV valves ticking at idle? When it stops ticking the idle seems to improve.
by Blairsville Ed
Sun Jul 21, 2019 7:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 piston options
Replies: 3
Views: 197

Re: 240 piston options

Has anyone had experience going from a standard piston to a flat top piston. I’m wondering how much the static compression numbers go up.
I’m at 150 psi now.
by Blairsville Ed
Sun Jul 21, 2019 11:04 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 piston options
Replies: 3
Views: 197

240 piston options

1968 F100. 240 I know that this has been covered somewhere on this board, but I could not locate the info. Which pistons will fit this motor? It has .912 wrist pins. I seen a post that references 302 pistons with different pin offsets. What year 302 pistons ? Compression height? What style piston to...
by Blairsville Ed
Sun Jul 14, 2019 12:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 cooling fan
Replies: 7
Views: 391

240 cooling fan

1968 F100. 240, 4 on the tree, 3.70 I just finished the ac system and it works well, however, yesterday I had the truck idling with the ac on for about 5 minutes and the temp gauge went up quite a bit. I have the original 17 inch steel fan with an add on clutch. The radiator is new although it’s lar...
by Blairsville Ed
Fri Jul 12, 2019 12:00 pm
Forum: Transmission & Drivetrain
Topic: 3 on the tree to a 4 on the tree
Replies: 13
Views: 708

Re: 3 on the tree to a 4 on the tree

This is a pull and turn- to - lock cable.
I hope to create a dash bezel and install the cable in the hole where the wiper switch is. Then move the wiper switch to the right side of the steering column.
by Blairsville Ed
Thu Jul 11, 2019 8:46 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree to a 4 on the tree
Replies: 13
Views: 708

Re: 3 on the tree to a 4 on the tree

Inside the cab, the cable is currently mounted to the bottom of the dash, on the left side of the column. It is a “T” handle that pulls out and rotates 90 degrees to lock. During the rebuilding process I replaced the reverse detent spring with a lighter tension spring since the locking cable would h...
by Blairsville Ed
Mon Jul 08, 2019 8:08 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree to a 4 on the tree
Replies: 13
Views: 708

Re: 3 on the tree to a 4 on the tree

If you find yourself installing one these transmissions, be aware that the speedometer gear may or may not be a right hand gear. The internet posters indicate that if the Speedometer cable enters the transmission on the drivers side, then it’s a right hand gear set. In my case that was not correct. ...
by Blairsville Ed
Thu Jul 04, 2019 9:43 am
Forum: 240-300 "Big Block" Six Performance
Topic: Lugging a 240
Replies: 1
Views: 191

Lugging a 240

1968 F100 240 4 speed od manual 3.70 rear end I’m pulling a 21 foot pontoon with my truck. The challenge is getting this load up the boat launch ramp. Once I get it rolling up the ramp with the clutch fully out, it luggs up the ramp with about 1/3 throttle. If I give it more throttle there’s no chan...
by Blairsville Ed
Mon Jul 01, 2019 8:53 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree to a 4 on the tree
Replies: 13
Views: 708

Re: 3 on the tree to a 4 on the tree

I have had the trans in for a few weeks now and it is nice to have the OD gear. The 3.25 first gear has been helpful to pull the pontoon boat up the ramp. The column shift linkage took a few tries to find the right shape and length. The 1-2 rod I used was the original R-1 rod on the 3 speed. It work...
by Blairsville Ed
Sun Jun 30, 2019 8:38 am
Forum: 240-300 "Big Block" Six Performance
Topic: Zinc
Replies: 16
Views: 825

Re: Zinc

I have been using Delo 400 straight 30. It’s available at O Reilly’s. The Chevron website indicates the zinc at .12 and phosphorus at .11 and rated as SL. There’s also a 15/40 rated at SL.
It’s the older Delo 400.
by Blairsville Ed
Mon Jun 03, 2019 8:44 am
Forum: 240-300 "Big Block" Six Performance
Topic: Is this hp/ torque curve correct?
Replies: 4
Views: 433

Is this hp/ torque curve correct?

This shows peak hp at 4000 rpm. Is that correct?
by Blairsville Ed
Mon Apr 29, 2019 8:23 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree to a 4 on the tree
Replies: 13
Views: 708

3 on the tree to a 4 on the tree

1968 F100,240, 3 speed column shift, 3.70 rear gear I’m currently still nostalgic concerning my column shift 3 speed. I’ve already shortened the column and have added power steering, but the 3 speed winds up to 3000 rpm at 70 mph. The 3 speed with added overdrive are rare and expensive. I found one ...
by Blairsville Ed
Mon Apr 08, 2019 11:21 am
Forum: Transmission & Drivetrain
Topic: Trans tag decode
Replies: 1
Views: 276

Trans tag decode

I’m looking for a 4 speed od trans that looks like a toploader. Ford used them in the late 70s and early 80s in the trucks and econoline vans. They’re cast iron with the shifters on the side. They made 2 different gear ratios. I cannot find a way to decode the trans tag to determine which code is th...
by Blairsville Ed
Sun Mar 31, 2019 9:04 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree modifications
Replies: 12
Views: 808

Re: 3 on the tree modifications

Although I know that the Bronco transfer case would solve the boat launch issue, I only pull the boat out of the launch about 4 to 6 times a year. Now I’m considering the 4 speed OD trans used in 1978-79. It would be a 4 on the column with a cable operated reverse. 1st gear in that trans is 3.25. Cu...
by Blairsville Ed
Wed Mar 27, 2019 7:49 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

Re: 240 mods update

I looked at a Toploader overdrive transmission today.
I noticed that it’s a slip yoke style. My current 3 speed is a fixed yoke with a 2 piece driveshaft, long bed truck
How do I Adapt the driveshaft from a fixed yoke to a slip yoke ?
by Blairsville Ed
Mon Mar 25, 2019 1:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

Re: 240 mods update

I’m working on finding that particular transmission.
by Blairsville Ed
Mon Mar 25, 2019 11:05 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

Re: 240 mods update

The you tube videos are sobering. I use a large wheel chock tied to my bumper and it’s a good launch that I have here. I did a practice run with the truck and boat at the launch. The 240 got it up the ramp but I had to ride the clutch and then one tire started to spin. Trac loc posi will be put in e...
by Blairsville Ed
Mon Mar 25, 2019 8:28 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

Re: 240 mods update

This process has been fun to see what each mod does. In reality, the few times a year that I towed the fishing boat doesn’t justify expensive upgrades, however the mods suggested on this site have been relatively inexpensive and have helped. The 1968 f100 will now be towing our 3200 lb. pontoon boat...
by Blairsville Ed
Sat Mar 23, 2019 12:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

Re: 240 mods update

Tire size is an interesting idea.
I’m due for tires. I currently have 235/75/15
The 1968 f100 had G78/15 which is equivalent to 215/75r15 or 225/70r15
The 225/70 is about 1.5 inches smaller in diameter than a 235/75

Anybody using these tires sizes on a bump side F100 ?
by Blairsville Ed
Sat Mar 23, 2019 8:50 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

Re: 240 mods update

At 55 mph, rpm is around 2425. I think that is were the 240 should be making peak torque. The mods may have shifted the max torque/ rpm point. But.....it’s still only a 240 not a 400. Rather than going deeper into the engine, I think the gearing would be the easiest solution. FTF.... did you have th...
by Blairsville Ed
Fri Mar 22, 2019 6:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 240 mods update
Replies: 23
Views: 1183

240 mods update

1968 F100. 240. 3 on the tree. 3.70 rear gear I’ve been doing mods to my 240 over the last few years with my goal being to get my truck to maintain 60 mph while towing my fishing boat up a long steep grade here in North Georgia. I started with a basic rebuild of the 240. The bores only needed a ligh...
by Blairsville Ed
Mon Mar 18, 2019 9:40 am
Forum: Bronco Busters
Topic: Stock 3 speed manual questions
Replies: 7
Views: 565

Re: Stock 3 speed manual questions

Is there a difference in the adapter housing mounting.
Will an automatic transmission adapter bolt up to a manual transmission?
by Blairsville Ed
Thu Mar 14, 2019 8:05 pm
Forum: Bronco Busters
Topic: Stock 3 speed manual questions
Replies: 7
Views: 565

Re: Stock 3 speed manual questions

Is it normal that the junkyards sell the transfer cases without the adapter housing?
by Blairsville Ed
Wed Mar 13, 2019 9:20 am
Forum: Bronco Busters
Topic: Stock 3 speed manual questions
Replies: 7
Views: 565

Re: Stock 3 speed manual questions

The trans tag is stamped RAN G-1
Does the adapter housing have the crossmember mounting holes ?
by Blairsville Ed
Tue Mar 12, 2019 4:37 pm
Forum: Bronco Busters
Topic: Stock 3 speed manual questions
Replies: 7
Views: 565

Stock 3 speed manual questions

I interested in the Bronco 3 speed manual trans. I have a 1968 F100, 240, 2wd, Ford 3.03 trans. The Bronco 6 cylinder trans has a lower 1st gear and the transfer case is a bolt on unit. I need the low first gear for pulling my pontoon out of the launch and I want to keep the column shift. Will the B...
by Blairsville Ed
Tue Mar 12, 2019 8:46 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree modifications
Replies: 12
Views: 808

Re: 3 on the tree modifications

Concerning tires....
I’ll be replacing all 4 soon
Currently, I have 235/75R15
I have read that there were stock 16” rims available with the 5 bolt hole pattern, but they are hard to find.
What is a good tire size for these trucks?
by Blairsville Ed
Tue Mar 12, 2019 8:39 am
Forum: 240-300 "Big Block" Six Performance
Topic: 240 misfire
Replies: 3
Views: 340

Re: 240 misfire

A good starting point is to check the mechanical condition of the motor.
Do you have reasonable compression on all the cylinders.
Is the valve timing correct.
Is the Valve lash or lifter pre load correct.
Is the transmission working correctly.
Is the oil pressure within specs.
.......
by Blairsville Ed
Mon Mar 11, 2019 11:53 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree modifications
Replies: 12
Views: 808

Re: 3 on the tree modifications

The NP435 would be an excellent choice but I like the 3 on the tree set up. I’m nostalgic I guess. I don’t think I can adapt the NP435 to a column shift. I took the pontoon over to the launch today to see how the modified 240 did pulling the boat up the launch. It definitely has more torque than it ...
by Blairsville Ed
Sat Mar 09, 2019 8:32 pm
Forum: Transmission & Drivetrain
Topic: 3 on the tree modifications
Replies: 12
Views: 808

Re: 3 on the tree modifications

My tow vehicle situation has changed. We had a 4 x 4 explorer for towing our pontoon boat but my wife wanted a new car and she picked a 2wd Escape. My 1968 F100 is now the tow vehicle. I towed the pontoon with the F100 about 3 years ago with the 240 still stock. It towed fine but pulling the boat ou...
by Blairsville Ed
Fri Mar 08, 2019 8:19 pm
Forum: Transmission & Drivetrain
Topic: 3 on the tree modifications
Replies: 12
Views: 808

Re: 3 on the tree modifications

Great info!
I think regearing my 3.03 might be the best way to go.
I have the 2.99 1st gear now.
I’ll start researching gear ratios from the GM’ s and AMC’s.
Currently, the 6 cylinder Broncos have the lowest 1st gear at 3.41.
by Blairsville Ed
Sun Mar 03, 2019 9:48 am
Forum: Transmission & Drivetrain
Topic: 3 on the tree modifications
Replies: 12
Views: 808

3 on the tree modifications

1968; F100; 3 on the tree, 3.70 gearing Has anyone tried to re-gear the standard 3 speed ? I want to keep the standard column shift in my truck, but that severely limits my transmission choices. One option is to put in a T170 RUG trans. It has a larger 1st gear, 3.24, plus overdrive. Reverse would b...
by Blairsville Ed
Sun Feb 10, 2019 9:55 am
Forum: 240-300 "Big Block" Six Performance
Topic: Chevy rockers zddp requirements
Replies: 1
Views: 589

Chevy rockers zddp requirements

If you change to Chevy rockers, does that change the type of oil that is used?
ZDDP requirement
I’m currently using a delo 400 straight 30 oil, SJ, with .122 zinc and .11 phosphorus
Is the higher ZDDP needed ?
by Blairsville Ed
Thu Jan 31, 2019 5:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Variable ignition timing
Replies: 14
Views: 855

Re: Variable ignition timing

For a visual inspection, which cylinder would show knock first?
by Blairsville Ed
Thu Jan 31, 2019 8:37 am
Forum: 240-300 "Big Block" Six Performance
Topic: Variable ignition timing
Replies: 14
Views: 855

Re: Variable ignition timing

A knock sensor?
Perhaps connected to a dash light or gauge?
It would be a great tuning help.

Which cylinder might show knock first?
Cylinder 1 or 6?
I’m referring to the cylinder that might have the hottest temperature.
by Blairsville Ed
Wed Jan 30, 2019 4:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Variable ignition timing
Replies: 14
Views: 855

Re: Variable ignition timing

Nice detailed answer!

Now I understand the need for a precise method of measuring the results from live timing adjustments.
Would incipient knock show up as erosion of the piston crown or the bowl edges?
by Blairsville Ed
Wed Jan 30, 2019 11:30 am
Forum: 240-300 "Big Block" Six Performance
Topic: Variable ignition timing
Replies: 14
Views: 855

Re: Variable ignition timing

I have been amazed as to how much timing advance this 240 can take without pinging. Idle timing with no vacuum is 25 degrees btdc Full vacuum advance plus mechanical advance is 55 degrees btdc And this is with a fairly lean mixture. What I’m wondering........even though there’s no pinging,could I st...