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Search found 120 matches

by jason832
Sun Oct 13, 2019 10:08 pm
Forum: 240-300 "Big Block" Six Performance
Topic: AFR (Air Fuel Ratio) For Ford 300 Inline 6
Replies: 7
Views: 198

Re: AFR (Air Fuel Ratio) For Ford 300 Inline 6

I have a street demon 625cfm. 15-16 afr for cruise. 13.5 for wide open primaries (about 1/3 total cfm. 12.5 WOT)

I have driven part way across Canada with a 2200lb car trailer getting 17-18mpg in provinces with few hills. Not bad for 4x4, np435, 4 inch lift, 35 tires, comp 268 cam.
by jason832
Sat Aug 31, 2019 7:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: HP upgrades = sheared u joint
Replies: 8
Views: 394

Re: HP upgrades = sheared u joint

I doubt your making enough torque to break a u joint. Did you have any indication it was going to fail? Do you grease them and check them for play? Moog products are going downhill. I put a moog u joint in my truck because I was far from home and snapped it clean off the same day doing burnout in th...
by jason832
Wed Jul 31, 2019 9:35 am
Forum: 240-300 "Big Block" Six Performance
Topic: Edelbrock avs2 1901
Replies: 12
Views: 1005

Re: Edelbrock avs2 1901

Guhfluh- I have a similar build to yours, Clifford intake, l and shorty headers, comp 268 cam, and I do have the street demon. It works very very well for me but buying the tuning kit for it and a wideband AFR gauge and spending many hours tuning it is a must. I have the street demon with the black ...
by jason832
Tue Jul 30, 2019 12:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Help tuning a new Offy/Quick Fuel Setup
Replies: 3
Views: 373

Re: Help tuning a new Offy/Quick Fuel Setup

Can't remember what the stock pump pressure is. Regulators and gauges aren't terribly expensive though. Remember when trying to get the fuel level lower in the bowls you have to burn off what's in the bowl and that may take a moment. Here's a link to a thread where someone had problems with the quic...
by jason832
Tue Jul 23, 2019 12:04 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Results, Chevy rockers, EFI manifolds, clutch fan, new Carter YF
Replies: 7
Views: 845

Re: Results, Chevy rockers, EFI manifolds, clutch fan, new Carter YF

I just got back this morning from a 3100km round trip. Averaged 15 us mpg cruising at 70mph, half the trip is rolling hills. Engine: Hyper pistons, Clifford intake, Clifford shorty headers, 625 street demon carb, comp 268 cam, stock ds2 ignition, 8.8ish compression, 160 thermostat, stock clutch fan....
by jason832
Sun Jul 14, 2019 8:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Offenhauser DP to Clifford heating difference.
Replies: 2
Views: 330

Re: Offenhauser DP to Clifford heating difference.

I was going to suggest carb tuning as well. My Clifford doesn't seem to make a difference with or without water heat, very small if at all.

Maybe it needs a fast idle?
by jason832
Fri Jul 12, 2019 8:25 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 472
Views: 61132

Re: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress

Great news. I for one don't mind waiting for a top notch product. Keep it up.
by jason832
Tue Jul 02, 2019 10:07 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Push rod separated from rocker arm
Replies: 15
Views: 775

Re: Push rod separated from rocker arm

You can pull the lifter easily to check it, if its got damage it may be a bigger problem. Take the side cover off, put a very small flathead screwdriver inside the lip around the rim of the lifter and ram it up and down until it comes out. If all looks good just drop it back on and put a new side co...
by jason832
Tue Jul 02, 2019 10:12 am
Forum: 240-300 "Big Block" Six Performance
Topic: 2100s and E85
Replies: 7
Views: 644

Re: 2100s and E85

E85 has an octane around 108. Carbs can be bought that are designed to run e85 out of the box. The jetting on e85 isn't very sensitive like gas either. Motor trends show engine masters did an A-B test of 114octane gas vs e85 on a high compression engine. Only things they changed were the fuel and ca...
by jason832
Sat Jun 29, 2019 11:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Zinc
Replies: 16
Views: 1159

Re: Zinc

I'm not an oil engineer but after spending hours reading about it wondering the same thing here's how I see it. Stock 300s have been going a long time in modern day oil without an issue. Today's oil still has the zinc etc in it just less of it as an environmental concern. Also oil has come a long wa...
by jason832
Fri Jun 07, 2019 11:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Vacuum Secondaries
Replies: 35
Views: 2264

Re: Vacuum Secondaries

https://www.ford-trucks.com/forums/1498 ... heavy.html

Hopefully this helps towards your question Pmuller and interests others. Mechanical secondaries works good with a manual trans for people willing to take the time and set it up to work right.
by jason832
Fri Jun 07, 2019 11:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Vacuum Secondaries
Replies: 35
Views: 2264

Re: Vacuum Secondaries

This is a long post, but I've mostly ran a combination nobody has. Real interesting. -300, 85 f150, 4 inch lift, 4x4, np435, 3.55 gears, 35inch mud terrains, 2100rpm@62mph -h519p cheap hyper pistons -91 octane required (any less it won't shut off) -estimated 8.8 static compression -Stock rods, bolts...
by jason832
Thu Jun 06, 2019 10:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Which mini starter for an old 300.
Replies: 8
Views: 652

Re: Which mini starter for an old 300.

I just installed a powermaster 9604 in my 85 300 with a np435. The starter can be clocked meaning it can spin 360* to clear headers. The power from the key wasn't enough to trigger the built in solenoid so I had to use the fender mounted one. You likely won't not need the spacer ring that comes with...
by jason832
Wed Jun 05, 2019 7:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Looking for input on a mild build 300 daily driver F250 4WD
Replies: 3
Views: 588

Re: Looking for input on a mild build 300 daily driver F250 4WD

Finding a 4wd t19 with 4:1 first will be nearly impossible. I have ever only seen evidence of one t19 4wd and I think they were offered with 3 different gearing options depending on year. Lots of 2wd ones out there. The Clifford intake will work good. Right now my 300 with a comp 268 cam and headers...
by jason832
Sat May 18, 2019 10:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Roadtrip thoughts: Loss of performance after modifications
Replies: 16
Views: 1420

Re: Roadtrip thoughts: Loss of performance after modifications

I remember my fiascos when I had the stock carter carb, never ending.... Have you checked other simple things? Blocked fuel filter? Maybe while cruising the bowl empties then it struggles? Spark plugs gapped and still look good? Good electrical grounds tight and clean? Timing? Try a spare ignition m...
by jason832
Wed Mar 13, 2019 8:52 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 472
Views: 61132

Re: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress

I think the price of the heads are very good. We only have to buy one head for the 300. Look at the price for a pair if medeocre 460 heads for example. Going fast just isn't cheap.
by jason832
Wed Mar 13, 2019 8:29 am
Forum: 240-300 "Big Block" Six Performance
Topic: Clutch Options
Replies: 8
Views: 670

Re: Clutch Options

A stock 11 inch is fine for me. Never even resurfaced the flywheel and threw a used disc on.... Street demon carb, Clifford intake, 268 comp cam, headers, exhaust. Mine doesn't seem like its even close to slipping and I've never had and shaking or noise or anything. I imagine it would take a lot mor...
by jason832
Mon Mar 04, 2019 10:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Industrial 300 forged cranks?
Replies: 34
Views: 1927

Re: Industrial 300 forged cranks?

I don't know how many replies you'll get this is a bit of a hard question. I doubt many guys here have torn down industrial engines and reported what crank it had. The answer will likely be "maybe, you never know what ford put in it" and "there's no way of telling until you pull the p...
by jason832
Thu Feb 21, 2019 8:45 pm
Forum: 240-300 "Big Block" Six Performance
Topic: plenum size and why does it matter?
Replies: 29
Views: 1682

Re: plenum size and why does it matter?

I don't think plenum or the volume of the runners matters a terrible amount on the 300 intakes. They aren't as big as a v8 tunnel ram or something. I've had a 300, stock cam, unheated Clifford intake, headers and 625cfm street demon carb. The primaries are about 1/3 total cfm. So 100cfm each primary...
by jason832
Wed Feb 20, 2019 4:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: First time engine build Ford 300
Replies: 26
Views: 1495

Re: First time engine build Ford 300

The e-229k rings are not file to fit I believe. Supposed to be able to drop them in and go... I built my 4.000 bore 300 with h519p pistons at my college with the head engine teacher. He was baffled about the different rings. He went and googled them and came back and said it all makes sense. We thre...
by jason832
Wed Feb 13, 2019 5:56 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Mr Gasket 260
Replies: 7
Views: 914

Re: Mr Gasket 260

Every one I've bought were in two pieces. One just goes beside the other, make sure they don't overlap when installing.
by jason832
Mon Feb 04, 2019 9:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Priming Oil system/pump
Replies: 5
Views: 634

Re: Priming Oil system/pump

To prime my motors I also used an old junk distributor. But I took the grinding wheel to the gear for a few seconds, then put a bolt into the center of the "rotor spot" and put a small weld to hold it in. Grab a drill with a bit to attach to a socket and you're good. Quick and dirty but it...
by jason832
Mon Feb 04, 2019 9:25 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Clark 5spd behind a 300? Attention Notmeofficer!
Replies: 8
Views: 1199

Re: Clark 5spd behind a 300? Attention Notmeofficer!

They do exist. My uncle has one in his junkyard I looked into a few years ago. 5th is OD on that exact one. If I remember right the answer I got was "it's possible, but good luck finding the clutch, flywheel, and bell housing to match up." Google Clark 5 speed and read all the threads that...
by jason832
Mon Jan 28, 2019 3:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: What ignition system?
Replies: 10
Views: 1092

Re: What ignition system?

I'll have a read through tonight. I don't know a huge amount about ignitions so I'll be happy to learn.

Also I will add cost isn't a huge concern. Just looking for the best in terms of reliability and power.
by jason832
Mon Jan 28, 2019 3:12 pm
Forum: 240-300 "Big Block" Six Performance
Topic: What ignition system?
Replies: 10
Views: 1092

What ignition system?

Currently I have a fairly built 300, duraspark 2 ignition. My distributor is crusty and I can't get into it to change the advance curve on it so I'm stuck with stock or buying another distributor. Emissions in my area is no concern. Truck is a daily driver that sees high milage and long trips. The s...
by jason832
Fri Jan 18, 2019 11:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1996 4.9l Headers
Replies: 6
Views: 760

Re: 1996 4.9l Headers

The stock efi manifolds are pretty good. Unless you are doing some radical engine build with custom head work, cam, etc. Anything with the factory efi shouldn't be limited by stock manifolds. Gains may be had by upgrades after the manifolds. Why the intent on headers and what is the plan for the eng...
by jason832
Wed Jan 16, 2019 1:46 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Much quieter!
Replies: 3
Views: 552

Re: Much quieter!

A Clifford set and two comp cams sets I've used haven't made any noise at all. Maybe factory ones are noisy.
by jason832
Tue Jan 15, 2019 5:07 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Slow going...
Replies: 12
Views: 1161

Re: Slow going...

Fel pro sells a gasket kit with everything on summit for like 50$. Buy a fel pro 1024 head gasket on top. The included intake /exhaust gasket isn't bad but ive ripped the paper intake one every single time and just kept using the exhaust half only.... but I now buy the mr. Gasket 260. For a while su...
by jason832
Tue Jan 15, 2019 1:37 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Highway power?
Replies: 10
Views: 1214

Re: Highway power?

Might be time for a tune up or some tuning. Check timing, air filter, replace plugs wires cap and rotor if they are old. My 85 with a 300, comp 268 cam, stock duraspark 2 curve, 4 barrel and headers has 3.08 gears and 35 inch tires. Even with the added weight of a pushbar, rollbar, full tank, 4x4, t...
by jason832
Tue Jan 08, 2019 4:50 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Next step for more HP?
Replies: 31
Views: 2296

Re: Next step for more HP?

Here's what happened to my 85 engine, shortly after hopping it up. block never opened since my grandfather bought it factory. Had about 60k miles when I pulled it out. Never pulled the pistons but it had low compression on this cylinder and one more. I don't think stock pistons and rings are up to a...
by jason832
Tue Jan 08, 2019 7:48 am
Forum: 240-300 "Big Block" Six Performance
Topic: Next step for more HP?
Replies: 31
Views: 2296

Re: Next step for more HP?

I agree with pmuller. Next steps are cam, head and valve work. The stock pistons are glass, they should be changed out with any upgrades at all in my opinion and experience.... A set of budget hypereutectics are pretty cheap and will work perfect. The stock bottom end (crank, rods, main caps, rod bo...
by jason832
Sun Dec 30, 2018 9:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 82 F150 Parasitic Draw Electrical Question
Replies: 17
Views: 1524

Re: 82 F150 Parasitic Draw Electrical Question

Have you checked compression? Checked for vacuum leaks? Pull the spark plugs and have a look at them. Carb set correctly? How old is the gas and fuel filter? Another thing you can do is put on some big gloves and pull one plug wire at a time, the engine should bog down for each one to show everythin...
by jason832
Fri Dec 28, 2018 9:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 82 F150 Parasitic Draw Electrical Question
Replies: 17
Views: 1524

Re: 82 F150 Parasitic Draw Electrical Question

0.6 milliamps or 0.6 amps? A 0.6 milliamp load on say a 50 amp hour battery will last for 83,333hrs. 0.6 milliamps is basically zero, within margin or error, maybe a clock in a radio running.... Anyways could the alternator not be charging or the battery toast? Run the truck for a bit, disconnect th...
by jason832
Sat Dec 01, 2018 8:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Aftermarket 300 Rod opinions?
Replies: 27
Views: 2074

Re: Aftermarket 300 Rod opinions?

I'd imagine a rod that fits the 300 crank and small block piston pins.
by jason832
Sun Nov 25, 2018 3:57 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Does anyone have any experience with the Clifford 6-8 dual carb setup?
Replies: 10
Views: 1185

Re: Does anyone have any experience with the Clifford 6-8 dual carb setup?

I bought a used truck with the Clifford "rebuild kit" and all their other parts installed. Here's what it all had Clifford 4barrel intake Clifford shorty headers Clifford valve cover Clifford cam (208@0.50, .474 lift) Clifford gears Screw in studs Stamped rockers Clifford Springs Head Mill...
by jason832
Fri Nov 02, 2018 8:59 am
Forum: 240-300 "Big Block" Six Performance
Topic: Trick to removing lifters?
Replies: 7
Views: 901

Re: Trick to removing lifters?

Take a screwdriver that has a sharp pick or something on the end. Stick it in the lip of the lifter and ram the lifter up and down a number of times. Vice grips should finish them once they're half out. I've gotten very high milage ones out in about 15 min. Another idea I haven't tried, with the blo...
by jason832
Mon Oct 22, 2018 8:12 am
Forum: 240-300 "Big Block" Six Performance
Topic: Whats Next
Replies: 28
Views: 2460

Re: Whats Next

I don't think the weight is too much of an issue until he hits a good hill, which he can downshift to 3rd if he needs to, that cam will pull well at 4000rpm. Pulling that truck and boat on level ground at highway speed is like 2 parachutes.... I've pulled a lot more than 2000 without much problems. ...
by jason832
Sun Oct 21, 2018 9:08 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Whats Next
Replies: 28
Views: 2460

Re: Whats Next

I have a similar setup as you. 4barrel street demon, Clifford intake, headers, 268 cam, no head work, 4 inch lift, 3.55 gears, np435, 35inch bfg km2s. I have my timing tuned quite well and a wideband AFR meter. I have the street demon tuned very crisp. I rarely count milage but on a long haul if I h...
by jason832
Sat Oct 20, 2018 7:22 pm
Forum: 240-300 "Big Block" Six Performance
Topic: T18 or T170?
Replies: 16
Views: 1746

Re: T18 or T170?

The t18 is probably cast iron not aluminium. The t18 is also a monster 4 speed with granny first. Go onto google and look up the following transmissions and see if they look like the ones you have. Its pretty easy to identify what you have by looking at it. Np435 T18 T19 Zf5 ford 5 speed M5od-r2 The...
by jason832
Sat Oct 20, 2018 7:11 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 472
Views: 61132

Re: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress

My condolences as well Bruce. You never know when someone that close will pass. Keep your head up, were all very impressed with the work and passion you are putting into this project.

Jason
by jason832
Fri Oct 19, 2018 11:00 am
Forum: 240-300 "Big Block" Six Performance
Topic: So, another piston question
Replies: 18
Views: 1676

Re: So, another piston question

On the topic of fe pistons, I'm in the middle of considering forged pistons. It appears there's a forged 390 pistons on summit that might work, https://www.summitracing.com/parts/slp-l2291f Bore 4.050 Compression height 1.776 Pin diameter 0.975 Forged So I too am wondering how interchangeable 390 pi...
by jason832
Tue Oct 16, 2018 12:53 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tubing diameter, etc.
Replies: 8
Views: 1007

Re: Tubing diameter, etc.

I have a similar build to yours with Clifford shorty's. A dual exhaust can be had and still be able to change a large case starter. just depends how the shop routes it. I will try and take good pictures tonight for you. My true dual exhaust and straight through magnaflows are very quiet when idling ...
by jason832
Sat Oct 13, 2018 10:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Whos doing best fuel economy over power???
Replies: 17
Views: 1902

Re: Whos doing best fuel economy over power???

If you have a tachometer it only takes a minute to figure out what rear gears you have. See what youre rpm is at an exact highway speed (say 2100 rpm at 62 mph). Punch in the numbers at this link and see what you have. https://www.summitracing.com/newsandevents/calcsandtools/gear-ratio-calculator Yo...
by jason832
Fri Oct 12, 2018 10:13 am
Forum: 240-300 "Big Block" Six Performance
Topic: Spares - DSII Ignition System
Replies: 16
Views: 1656

Re: Spares - DSII Ignition System

I'm in Ottawa. I find once I get the truck started and warmed up to driveable in the winter I have next to no problems. Nothing will overheat (module, engine, drivetrains, brakes...) Gotta love when its so cold the np435 starts walking away in neutral thinking ots an automatic with 75w90 and takes G...
by jason832
Wed Oct 10, 2018 11:18 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Spares - DSII Ignition System
Replies: 16
Views: 1656

Re: Spares - DSII Ignition System

-Module for sure. -Distributor since I'm too lazy to carry just pieces of it. -Starter since header heat and high compression takes a toll on them. -Instead of carrying a spare alternator I just have a massive battery (1100 CA 900 CCA and massive capacity) and a voltmeter in the dash. If it's low I ...
by jason832
Tue Oct 09, 2018 8:56 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Whos doing best fuel economy over power???
Replies: 17
Views: 1902

Re: Whos doing best fuel economy over power???

Here's the best I've done. Truck: 85f150 single cab 4 inch lift 4x4 np435 3.55 gears 35inch bfg mud terrains Tons of extra weight (hitch, tools, push bar, rollbars, some cargo etc) Engine 300 6 625 street demon tuned with wideband afr Clifford intake Clifford shorty headers, true dual magnaflow Comp...
by jason832
Fri Oct 05, 2018 8:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Engine temps are still going higher than I would like.
Replies: 19
Views: 1536

Re: Engine temps are still going higher than I would like.

I have built 300, maybe 2 row small aluminum radiator, clutch fan, and no shroud with a fair gap between fan and rad. I have no issues. Maybe its running very lean? Air stuck somewhere in the system? Blocked passages? Weak clutch on the fan? Bent fan blades? Possibly you installed the wrong water pu...