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Search found 218 matches

by sandboxer
Sun Jun 16, 2019 9:57 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Rough carving my crank before polishing and balancing. Leading and trailing edges...
6C240883-F2CD-4FAF-808C-4A24C85AE994.jpeg
E5770617-CB8B-4DB7-A74E-4DAFEF34D340.jpeg
by sandboxer
Fri Jun 14, 2019 10:16 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Vacuum Secondaries
Replies: 23
Views: 583

Re: Vacuum Secondaries

I have a Holley 1968 GT390 4speed 600 cfm vacuum secondary carb that needs a rebuild. I’m also picking up a Holley 650 double pumper 4777c tomorrow that is missing 2 idle screws for cheap... I’ll see what kind of budget hot-rodding karma I can channel to see this work out. If not, it’s a new Quick F...
by sandboxer
Wed Jun 12, 2019 1:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Vacuum Secondaries
Replies: 23
Views: 583

Re: Vacuum Secondaries

Ok:)
Convinced.
Thanks!
by sandboxer
Wed Jun 12, 2019 11:04 am
Forum: 240-300 "Big Block" Six Performance
Topic: Vacuum Secondaries
Replies: 23
Views: 583

Re: Vacuum Secondaries

Anyone have experience with a 450 double pumper? I need to decide on my induction soon, so this thread is of the highest importance at this point for me. 10:1 Schneider 142F 300 rods I have two Carter BBD (285 cfm) carbs that are an option to a 4 barrel mechanical. The 450 double pumper is a distin...
by sandboxer
Sun Jun 09, 2019 9:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Vacuum Secondaries
Replies: 23
Views: 583

Re: Vacuum Secondaries

Anyone have experience with a 450 double pumper? I need to decide on my induction soon, so this thread is of the highest importance at this point for me. 10:1 Schneider 142F 300 rods I have two Carter BBD (285 cfm) carbs that are an option to a 4 barrel mechanical. The 450 double pumper is a distinc...
by sandboxer
Fri Jun 07, 2019 8:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Pioneer Rod bolts
Replies: 5
Views: 185

Re: Pioneer Rod bolts

CNC-Dude wrote:There are different FE rod bolts. One has the football shaped head, the other is the square head. Just make sure of the style you need for your 300 rods.

Noted and mission accomplished.
Thanks
by sandboxer
Fri Jun 07, 2019 2:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Pioneer Rod bolts
Replies: 5
Views: 185

Re: Pioneer Rod bolts

Thanks for the feedback. The local speed shop didn’t have the 300 rod bolts in stock, so the Pioneers were available elsewhere.
Called ARP though and cross referenced FE bolts:
Part 155-6002
Luckily the speed shop has those. Picking them up today.
Cheers!
by sandboxer
Fri Jun 07, 2019 12:07 am
Forum: 240-300 "Big Block" Six Performance
Topic: Pioneer Rod bolts
Replies: 5
Views: 185

Pioneer Rod bolts

Anyone use these or know of any unhappy outcomes?
Thanks
by sandboxer
Mon Jun 03, 2019 12:55 am
Forum: 240-300 "Big Block" Six Performance
Topic: Tractor Puller
Replies: 157
Views: 15238

Re: Tractor Puller

Mechanical roller cams require much more spring than a solid flat tappet cam because of the high ramp rate of the roller cam. One of our BBC roller cams is 300 lbs closed and 800 lbs at .700” lift. The Comp 7228 conical spring will give you around 400 lbs open at .600” lift which should keep the li...
by sandboxer
Sun Jun 02, 2019 8:18 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tractor Puller
Replies: 157
Views: 15238

Re: Tractor Puller

Mechanical roller cams require much more spring than a solid flat tappet cam because of the high ramp rate of the roller cam. One of our BBC roller cams is 300 lbs closed and 800 lbs at .700” lift. The Comp 7228 conical spring will give you around 400 lbs open at .600” lift which should keep the li...
by sandboxer
Thu May 30, 2019 6:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: So I have a plan but now im Second guessing myself.
Replies: 42
Views: 794

Re: So I have a plan but now im Second guessing myself.

Talked to Kevin at Schneider yesterday and was told that the 142F would fall on its face at 5500 because of the poor breathing of the head. That can is rated to 6500. As well, Jerry at Schneider today confirmed that they have all the requisite springs.
by sandboxer
Wed May 29, 2019 9:48 am
Forum: 240-300 "Big Block" Six Performance
Topic: TECH TIP - STORAGE
Replies: 8
Views: 338

Re: TECH TIP - STORAGE

Linseed oil + newspaper + big plastic bag. PLEASE DON’T! Linseed oil heats as it cures and will cause rags and paper to spontaneously combust. Many a garage/shop has been lost to oil soaked rags. I use linseed oil in my line of work and any cloth or paper that comes in contact with linseed oil goes...
by sandboxer
Mon May 27, 2019 9:05 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 lacking HP
Replies: 43
Views: 1415

Re: 300 lacking HP

Just a few guesses... It is my understanding that the lower runners have a weaker signal than the upper runners, so you might have to jet them differently for optimal power. You also might be getting fuel separation in the upper runners as well because of the abrupt turn. The spacer not only helps t...
by sandboxer
Sat May 25, 2019 11:10 am
Forum: 240-300 "Big Block" Six Performance
Topic: Required reading before building a 300.
Replies: 9
Views: 551

Re: Required reading before building a 300.

Ditto on Vizard.
This one is a good all around informative read.
E1E6AA56-2053-459A-8753-A32233597C7A.jpeg
by sandboxer
Sat May 25, 2019 11:02 am
Forum: 240-300 "Big Block" Six Performance
Topic: Roadtrip thoughts: Loss of performance after modifications
Replies: 15
Views: 651

Re: Roadtrip thoughts: Loss of performance after modifications

Emergency brake was stuck. A bit of a drag...?
by sandboxer
Thu May 23, 2019 4:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Picked up my block and pistons from machine shop.
Replies: 38
Views: 1519

Re: Picked up my block and pistons from machine shop.

They actually didn’t recommend any type. They just quoted a price. I should have asked....

Thanks for your input. I’m sure it’s saving everyone a lot of grief, especially me:)
by sandboxer
Thu May 23, 2019 1:24 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Picked up my block and pistons from machine shop.
Replies: 38
Views: 1519

Re: Picked up my block and pistons from machine shop.

Maybe I missed something...
Talked with Schneider about a complete kit yesterday for the 142f, including springs. Theirs don’t work with the 300?
by sandboxer
Wed May 22, 2019 3:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Required reading before building a 300.
Replies: 9
Views: 551

Re: Required reading before building a 300.

I may buy that book. It's a little pricey so I'll wait to see what others suggest though. It is almost 400 pages of design information with detailed discussions of each part including parameters and limits. Some math, Detailed assembly instructions, glossary of terms and helpful tables ect... With ...
by sandboxer
Tue May 21, 2019 3:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

297973F8-8EA5-4270-9C51-0CA841865A3C.jpeg
5E77CB9C-C878-4CEF-B006-0724CFD56760.jpeg

...add a little flare...
by sandboxer
Tue May 21, 2019 11:56 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

54-4x4 wrote:You are doing a fine job.I like to do this kind of stuff too.

Thank you! It’s a good thing I didn’t post pics of my epic screw ups:)
Please share your adventure pics.
by sandboxer
Mon May 20, 2019 10:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Got the motor out....
Replies: 32
Views: 764

Re: Got the motor out....

Any idea why 4 and 6 were so lean? 1 looks wet...
by sandboxer
Mon May 20, 2019 10:46 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Stitching up the runners
E99BEE09-F85C-413A-B6E5-249B3647A617.jpeg
6AEEFCC6-EF49-4FF2-9A60-A346DF206440.jpeg
by sandboxer
Sun May 19, 2019 12:01 am
Forum: 240-300 "Big Block" Six Performance
Topic: forged 300 industrial stock pistons
Replies: 3
Views: 272

Re: forged 300 industrial stock pistons

I just posted pics of my TRW L2444.
888 grams with the pin, 717 without.
by sandboxer
Sat May 18, 2019 4:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

A little update Intake runners taking shape. Debating the use of TRW forged pistons for a 300. These are beautiful but heavy. Obviously not for the 240, but thinking about my .030 rebuilt 240 and putting these in with a 300 crank... .060 offset. Compared with a TRW cast piston, it’s quite robust. 31...
by sandboxer
Sat May 04, 2019 10:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

54-4x4 wrote:That looks good what you are doing.

THE FRENCHTOWN FLYER wrote:NICE


Thanks gentlemen.
Here are a few shots from today’s work.
8AEC6442-138F-4BB4-91B6-B71029B04C14.jpeg


A shot with my intake runner and one with a 1.75” tube ready to be bent.
CD019B3A-0554-4070-8D2F-37406C50E56B.jpeg
by sandboxer
Thu Apr 25, 2019 1:03 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

My header transition effort. A few more attempts and it might start to clean up a bit... I’m planning on sliding the tube over top and grinding out the inside after weld up. 5D0A5374-AA68-4C1D-B5B4-E7E579E30988.jpeg 209C609F-BD62-4798-88EC-ED087FD43D84.jpeg 21F20CAF-7E03-4579-B7DB-75E078911C00.jpeg ...
by sandboxer
Sat Apr 20, 2019 1:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: What's wrong with this picture...
Replies: 9
Views: 473

Re: What's wrong with this picture...

Very valuable information!
Thank you for sharing.
by sandboxer
Fri Apr 19, 2019 8:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

54-4x4 wrote:You are doing a very nice job on your pieces.I will be tagging along to learn something here.

Thank you. It’s definitely quite a learning curve for me. I’ve fabricated before but never to make horsepower, so I’ll tag along too:)
by sandboxer
Fri Apr 19, 2019 3:12 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Tractor Puller
Replies: 157
Views: 15238

Re: Tractor Puller

Sorry for your loss Lunatic Fringe. I hope you make it back to the 300 someday soon. Good luck with the season.
by sandboxer
Thu Apr 18, 2019 10:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Nice form and flanges! Will you use stainless steel tubing? Thanks! The flanges were made by Lunatic Fringe. I’m going to use 1 3/4” .065 mild to start. It has a 1 5/8” opening, which will meet my needs. I’m going to try this header on the dyno against the EFI, and hopefully it’ll come out better. ...
by sandboxer
Thu Apr 18, 2019 9:58 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

A few pics: The exhaust form is protruding about 1” more than needed because I’ll weld onto the flange with a slight anti reversion lip so the width and height will be slightly oversized to the port opening. AEECEC48-9EBF-451E-9CF0-38D7AEA12E11.jpeg FC564CCD-619B-4435-BF7C-CA68A4837CA0.jpeg 17FFC17D...
by sandboxer
Thu Apr 18, 2019 8:26 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Thank you for the feedback FF. I built a hammer form yesterday so I tried to make sure that the flow out wasn’t impeded in any way. Today I checked the outlet on the EFI header and it matches the exhaust port perfectly (1500sq mm). Ford’s 3 into 1 has no pinch spots at all. I checked the outlet on t...
by sandboxer
Wed Apr 17, 2019 11:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

I have another dilemma.
The exhaust ports measure 1500 sq. mm
- 1 1/2” header ID equals 1134 sq. mm
- 1 5/8” header ID equals 1334 sq. mm

Either way, a 1 3/4” header tube will barely equal the exhaust port size. Everything smaller is a huge step down.

Thoughts?
by sandboxer
Wed Apr 17, 2019 11:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Thanks to both of you for that thread.
I remember reading it thoroughly as it unfolded but obviously my retention abilities need work. That is an epic thread. Very helpful.
by sandboxer
Wed Apr 17, 2019 5:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

the way I understand it is the boss needs to be machined down when the pressed in stud is pulled and the hole is threaded because the threaded stud will have a section that is hex shaped for the wrench when tightening. If the boss is not machined there would be potential for interference with the r...
by sandboxer
Wed Apr 17, 2019 5:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

I measured the heights of all my heads’ pedestals, 240 and 300, and the heights are all the same. What does talk about machining them down for stud rockers mean if the stud rockers already use the pedestals in place? Am I missing something? 2908A201-FDFB-46C5-BFBE-0CD0C7F729D3.jpeg F89E81FD-DDD3-428...
by sandboxer
Wed Apr 17, 2019 10:37 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

If you turbo the 240 it should get a 300 carb head so you can use a flat top piston. I’m definitely heeding your advice on that. I have a carb head that is reserved for the turbo. Because I have 3 240 heads, one will become my NA mule for my intake manifold build. I haven’t pulled the valve cover o...
by sandboxer
Wed Apr 17, 2019 9:33 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Which head are these fine looking parts going on/in? I’ll be using one of my 240 heads to begin with. I think I’d like to turbo the 240 and NA the 300. I’ll post photos of the aluminum intake I’m fabricating when it’s done, but it’ll have a common plenum with a single 4 barrel and dual 2 barrel opt...
by sandboxer
Tue Apr 16, 2019 4:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Bought these beauties today.
BBC Crane Golds
1:7
7/16” stud
8F2573EA-E905-4CBA-8DFF-AE61D431A286.jpeg

Time for some head work:)

Thanks Lunatic Fringe and pmuller for your expert advice on what to look for.
by sandboxer
Tue Apr 16, 2019 9:43 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Only .800? Bummer:)

Does this mean that I don’t have to mill down the stud boss for the Crane Gold rockers?
by sandboxer
Mon Apr 15, 2019 4:58 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 118
Views: 2901

Re: Fresh Rebuilt 240

Bought some never used SBF Manleys today.
D6DF43FE-9FF6-4A97-890A-09BA9FDC8709.jpeg

1:94/1:60
5.080 length

Is anyone familiar with this style of valve?
A8C88BFD-101C-4562-BA73-4AA0DB22730A.jpeg
4A9B5923-A0B5-405B-A04B-BD7ECC446FCA.jpeg
by sandboxer
Wed Apr 10, 2019 11:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: compression
Replies: 158
Views: 6053

Re: compression

I see. One of my job assignments was working with a Ford ring supplier to determine minimum end gaps. The supplier supplied the rings. Our lab built a bluprinted engine with a starting point gap - .014" as I remember. Now the test for ring gaps was brutal. The engine was put into an environmen...
by sandboxer
Wed Apr 10, 2019 1:17 am
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1004

Re: Hedman vs EFI headers

Sweet!! Time to look for another set. It looks so much better too. What size/type turbos are you running? The turbocharger compressor inducer diameter for a Iveco 2.3L diesel engine is 38mm. Great for a stock 300 engine for low rpm application. You would need two larger turbochargers for what you a...
by sandboxer
Tue Apr 09, 2019 11:39 am
Forum: 240-300 "Big Block" Six Performance
Topic: Offenhouser Source
Replies: 3
Views: 343

Re: Offenhouser Source

That’s great info.
Thank you!
by sandboxer
Tue Apr 09, 2019 10:20 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 313
Views: 15888

Re: 300 torque build 85 Bronco

It has a nice beefy sound.
by sandboxer
Tue Apr 09, 2019 10:17 am
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1004

Re: Hedman vs EFI headers

Sweet!!
Time to look for another set. It looks so much better too.
What size/type turbos are you running?
by sandboxer
Fri Apr 05, 2019 11:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Yet another cam question
Replies: 10
Views: 386

Re: Yet another cam question

Having said that, how much static compression would you safely run with the Schneider 142F?
by sandboxer
Fri Apr 05, 2019 10:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1004

Re: Hedman vs EFI headers

I’ll have the space to make it happen, since there isn’t an engine bay to worry about.
The photo below is in reference to the dual port inlet for those that were wondering.
2DD7570D-E5E2-4EE0-9613-2A8ADD45DBCC.jpeg
One header per hole
by sandboxer
Fri Apr 05, 2019 7:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1004

Re: Hedman vs EFI headers

Since the turbo exhaust inlet has a double port entry I will use the separate headers to isolate the pulses into each individual port. At that point I think it will be best to keep the turbo as close to the engine as possible.
Thoughts?