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Search found 93 matches

by jason832
Fri Jan 18, 2019 11:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 1996 4.9l Headers
Replies: 6
Views: 162

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: 148

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: 11
Views: 327

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: 8
Views: 343

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: 22
Views: 501

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: 22
Views: 501

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: 534

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: 534

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: 936

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: 514

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: 433

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: 1309

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: 1309

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: 902

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: 370
Views: 29884

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: 932

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: 555

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: 1032

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: 801

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: 801

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: 1032

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: 690

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...
by jason832
Fri Sep 21, 2018 10:17 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 370
Views: 29884

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

Keep up the excellent work gramps. Any updates on when the first head will be dyno'd or available for order etc? Many of us are patiently waiting to finally make some power out of our sixes and we greatly appreciate the work. If I can make the suggestion a Facebook page or something is started so we...
by jason832
Fri Sep 21, 2018 8:45 am
Forum: 240-300 "Big Block" Six Performance
Topic: opinions please on con rod bolts
Replies: 5
Views: 345

Re: opinions please on con rod bolts

Changing them means getting the machine shop to resize the rods as well. For a street engine that doesn't see more than 5000rpm I'd keep the factory ones. I did on mine (4bbl, intake, cam, hyper pistons, headers) and have been pulling to to 5k many many tomes a day for over a year. French town flyer...
by jason832
Thu Sep 20, 2018 6:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: My bad starter adventure
Replies: 7
Views: 469

Re: My bad starter adventure

Cliffords shorty headers can be made to clear starters that way you can change the starter. Will be my choice for headers if I buy more. I've encountered both small and large case starters and both can be changed easily. The large case starter however the power wire must be angled to avoid the exhau...
by jason832
Fri Sep 14, 2018 9:10 am
Forum: 240-300 "Big Block" Six Performance
Topic: FiTech (or other FI systems) used with boost.
Replies: 34
Views: 1295

Re: FiTech (or other FI systems) used with boost.

If I remember correctly the fitech systems can handle more power than the rating says. Its just rated a bit on the low side. The 400hp can do 500 or something like that and so on for the rest.
by jason832
Tue Aug 21, 2018 7:59 am
Forum: 240-300 "Big Block" Six Performance
Topic: Wiped cam.
Replies: 41
Views: 2114

Re: Wiped cam.

The comp can you ordered pulls good from 1000 to 4500 or so if your head has been worked over well. I'm running mine without roller rockers. Just screw in studs and I believe they are the comp flat tip ball rockers. They've held up for a few years perfect and did well with the Clifford can at .474 l...
by jason832
Tue Jul 31, 2018 11:30 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Pulling Cam & Crank Gears
Replies: 13
Views: 740

Re: Pulling Cam & Crank Gears

Im guessing the engine is still in the truck? Bear with me I'm extremely behind on sleep and may miss details... The crank gear requires a lot of force in my experience to pull off. Have a good puller fully installed to pull it. Do not rely on hammering a new one on because you do not want to damage...
by jason832
Fri Jul 27, 2018 7:53 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 370
Views: 29884

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

Keep up the good work. Can't wait to see then next u head and get my hands on one.
by jason832
Tue Jul 17, 2018 10:34 am
Forum: 240-300 "Big Block" Six Performance
Topic: Alternator requirements
Replies: 17
Views: 1043

Re: Alternator requirements

The ignition itself will pull very little at idle and can run on fairly low voltage.

Look up a 3g alternator swap. They're cheap and can be had in 130 amp versions. Everything can be found in a junkyard for like 30$
by jason832
Mon Jul 16, 2018 6:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 370
Views: 29884

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

I'm pretty sure I'm in for the Max u head. Need to get it to Canada though...
by jason832
Wed Jul 11, 2018 10:39 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent Flow Fix IDEAS Welcomed
Replies: 15
Views: 1230

Re: Permanent Flow Fix IDEAS Welcomed

Excellent work. Can't wait to wake up my six. Looks like I won't be building a 460 for my truck when the Max flow or cross flow head comes out.
by jason832
Tue Jul 10, 2018 6:12 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Question about Rod and Main Bolts
Replies: 3
Views: 342

Re: Question about Rod and Main Bolts

I don't think they are torque to yield someone else should answer as well. Also if you need to change the bolts the rods would need to be resized after pressing in new ones.
by jason832
Thu Jul 05, 2018 6:11 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Checklist for 300 engine that was smoking
Replies: 6
Views: 477

Re: Checklist for 300 engine that was smoking

Tighten all of your coolant hoses first. Wipe down everything you think might leak so it's dry. Start it for a few seconds and have a look.
by jason832
Sun Jul 01, 2018 8:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Lifter kit recomendation
Replies: 9
Views: 586

Re: Lifter kit recomendation

Doesn't sealed or someone make a stock replacement for less than an aftermarket cam on summit? Don't put a 268 on an engine that doesn't have a carb intake and exhaust at a minimum. I have that cam and its for a moderate and up build. Maybe buy a mild comp can like mentioned above, comp lifter and t...
by jason832
Fri Jun 22, 2018 11:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Hydraulic Lifter Brand
Replies: 6
Views: 550

Re: Hydraulic Lifter Brand

I've used a few sets of comp lifters on comp cams, however not more than a year or two on each set before switching. They all broke in fine on shell diesel oil without any issues. I also ran a temporary high milage 200$ engine while building a nice one, and it developed a tick. I installed a set of ...
by jason832
Mon Jun 18, 2018 7:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Quick valvetrain question.
Replies: 16
Views: 1087

Re: Quick valvetrain question.

While apart valve guides should be checked for slop. If they are worn no amount of lapping will fix them for long... If you disassemble it yourself I recommend a valve spring compressor that holds the valve on the chamber end, and compresses the spring. Don't waste your time with the ones that grab ...
by jason832
Mon Jun 18, 2018 7:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Quick valvetrain question.
Replies: 16
Views: 1087

Re: Quick valvetrain question.

Roller rockers have round tips meaning all the force is on one spot of the valve tip compared to stock rockers where the flatness of the rocker tip spreads it out more. This means that a roller rocker is more sensitive to pushrod lengths, according to an episode of power nation anyway. The scorpion ...
by jason832
Mon Jun 18, 2018 11:53 am
Forum: 240-300 "Big Block" Six Performance
Topic: Quick valvetrain question.
Replies: 16
Views: 1087

Re: Quick valvetrain question.

If you have bad compression on a cylinder just start with pulling the head since no matter what you will need to. If its a ring problem you should see a ridge at the top or scratches on the cylinder. You can verify the valve isn't sealing by installing the plugs, filling the chambers with water and ...
by jason832
Sun Jun 17, 2018 1:50 pm
Forum: 240-300 "Big Block" Six Performance
Topic: My 1983 300 has a mysterious tick!
Replies: 13
Views: 948

Re: My 1983 300 has a mysterious tick!

A new cam requires new lifters, new lifters can be used on an old cam. Also if you remove old ones and they are to be reinstalled, they must go back to the same hole. You can pull all the old lifters and install new ones in one go. I just wouldn't remove or tighten the rocker arms unless the cylinde...
by jason832
Sun Jun 17, 2018 9:42 am
Forum: 240-300 "Big Block" Six Performance
Topic: My 1983 300 has a mysterious tick!
Replies: 13
Views: 948

Re: My 1983 300 has a mysterious tick!

Compression is probably fine 160+ is pretty good. With a lot of milage the lifters might start to tick. I had a high milage 300 that ticked, put a set of summit brand lifters and all was well. If you plan on putting a ton more milage on it I'd consider new lifters. Pull the rockers, pushrods, distri...
by jason832
Thu Jun 14, 2018 4:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 100k 4.9 freshen up advice please.
Replies: 9
Views: 859

Re: 100k 4.9 freshen up advice please.

Stock pistons are not very strong. Its well known around here that when you open up a bottom end it has a decent chance of missing piston chunks. I have also built a mild engine (stock low milage bottom end, carb, intake and headers). Shortly after it has 40psi of compression on one cylinder. I pull...
by jason832
Thu Jun 14, 2018 12:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: My 1983 300 has a mysterious tick!
Replies: 13
Views: 948

Re: My 1983 300 has a mysterious tick!

Its hard to hear on my phone speaker but maybe you didn't install the manifold to head gasket very well. Did you scrape and clean the two surfaces super clean before installation? If any material or carbon is left over the gasket won't seal properly. Maybe you goofed the gasket or if its the two pie...
by jason832
Tue Apr 24, 2018 11:43 am
Forum: 240-300 "Big Block" Six Performance
Topic: First Ever Engine Swap. Lots of questions. I want it right.
Replies: 6
Views: 617

Re: First Ever Engine Swap. Lots of questions. I want it right.

I did something similar last summer. 88 engine into my 85 and I kept all the carb stuff and carb head on the efi block. 1.Check the power steering bracket. There should be spacers about one nut thick between the bracket and block. Make sure thee two pulleys line up square. 2.Your oil pan should be f...
by jason832
Sun Apr 22, 2018 9:14 pm
Forum: 240-300 "Big Block" Six Performance
Topic: symptoms of cam gear fail?
Replies: 74
Views: 3652

Re: symptoms of cam gear fail?

If the timing gears shear or start to fail it will probably fail suddenly I doubt it would skip a tooth and continue on its marry way for a while. The gear on the distributor and cam can strip down sometimes just on one side. You could check them visually for wear. Also just pulling the distributor ...
by jason832
Fri Apr 20, 2018 7:07 am
Forum: 240-300 "Big Block" Six Performance
Topic: What operating rpm can a 300ci. hold safely?
Replies: 25
Views: 1965

Re: What operating rpm can a 300ci. hold safely?

I spin mine many times a day to 5k, for about a year now. 4barrel and intake, cam, and aftermarket pistons. Rod main and head bolts are stock.

I think ford has the redline at 5k or 5500rpm. 3400 is fine. I think peak torque on a stock 300 will be at less rpm though.
by jason832
Sat Apr 14, 2018 10:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 600 cfm holley
Replies: 20
Views: 1812

Re: 600 cfm holley

An off C manifold I doubt will cause the issues OP is having. I've ran a Clifford intake without the heat passages hooked up, Clifford cam and a 4 barrel street demon Jr. In the coldest times of Canadian winter and it ran fine and pulled as good as a stock 300 down low. Is the choke working right? A...
by jason832
Wed Apr 04, 2018 9:01 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Removing harmonic balancer
Replies: 5
Views: 606

Re: Removing harmonic balancer

If its a manual put it in high gear. If its like the 300 you'll need the puller with 3 outside bolts, be sure those 3 bolts are in fully or you risk stripping it, believe me. I think I have been able to get the balancer off with the radiator on but it was close, and it was an 85 f150 so not the same...
by jason832
Wed Apr 04, 2018 2:34 pm
Forum: 240-300 "Big Block" Six Performance
Topic: School me on Pistons
Replies: 4
Views: 678

Re: School me on Pistons

My 300 has that exact cam and pistons. Carbed head milled 0.060 by PO, 1024 Head gasket, stock bore and block not milled. It diesels most times when I shut it off at full temp on 87 octane. 91 octane runs a bit smoother and lowers the dieseling. Not sure what my timing is at but it is set far enough...