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Search found 234 matches

by sandboxer
Wed Apr 17, 2019 11:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

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: 120
Views: 7232

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: 120
Views: 7232

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: 120
Views: 7232

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: 120
Views: 7232

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: 120
Views: 7232

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: 120
Views: 7232

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: 120
Views: 7232

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: 10916

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: 1873

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: 599

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: 25182

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: 1873

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: 771

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: 1873

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: 1873

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?
by sandboxer
Fri Apr 05, 2019 11:31 am
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1873

Re: Hedman vs EFI headers

I’m going to open up the EFI a bit by a 16th all around. That will assure there’s no overhang into the port.
by sandboxer
Thu Apr 04, 2019 12:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1873

Re: Hedman vs EFI headers

A comparison shot.
69328ABE-0C10-45B6-AA01-53F7569C3E66.jpeg
by sandboxer
Thu Apr 04, 2019 12:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1873

Re: Hedman vs EFI headers

The EFI is the larger port casting...
E5B90DDD-46D5-498E-8E5E-10E456D9B54D.jpeg
BD2AB2BA-5A5C-4B7B-9EEC-000C58A0E929.jpeg
by sandboxer
Thu Apr 04, 2019 12:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Hedman vs EFI headers
Replies: 23
Views: 1873

Hedman vs EFI headers

I don’t know if specs have been posted, so here goes...

The EFI headers port match beautifully, whereas the Hedman header doesn’t.
0BFA99FC-5B18-4B90-9DB4-4FA8C08F5DF5.jpeg
F62C61D6-7389-4996-B3D7-5E31932DEBEB.jpeg
by sandboxer
Wed Apr 03, 2019 9:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I have a Hedman truck header that I’ll never use. I was going to cut it up and use the bits to make one that suits my format. It’s an interim solution that will give me a functioning prototype. I won’t wrap it though.
If that works out I’ll duplicate in stainless.
Thanks!
by sandboxer
Wed Apr 03, 2019 9:12 pm
Forum: 240-300 "Big Block" Six Performance
Topic: compression
Replies: 158
Views: 10916

Re: compression

Ditto on the very nice work. I love it when someone takes charge and makes something happen.
Cheers!
by sandboxer
Wed Apr 03, 2019 12:34 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

A question I’ve always pondered...
Rear mount turbo decreases heat input, but the header improves flow. Trade off for sure. Would you wrap the header and exhaust all the way to the turbo?
by sandboxer
Tue Apr 02, 2019 4:23 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Thanks pmuller
I’ll definitely have fun with that.
by sandboxer
Tue Apr 02, 2019 2:59 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

8524A9B2-8D9B-484A-8E45-8B0920CF8308.jpeg

Two good reads!
by sandboxer
Tue Apr 02, 2019 2:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

THE FRENCHTOWN FLYER wrote:
sandboxer wrote:Also..!
I goofed on the Clifford intake...The manifold checks out just fine after a caliper review.

You win!!!


Too funny:)
by sandboxer
Tue Apr 02, 2019 12:05 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Thanks FTF What rpm are you seeing at the strip? On the ones with stock rods we'll run it up to 5500. On a couple of times my son over revved his 240 and free revved the motor to 7000. I'm building him a replacement 303 and dropping his 240 in my Attic Anglia build. https://www.jalopyjournal.com/fo...
by sandboxer
Tue Apr 02, 2019 11:18 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I’m building one. I’m torn between mounting the turbo right at the engine or in the back. Either way it gets an intercooler.
by sandboxer
Tue Apr 02, 2019 10:42 am
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 484
Views: 70993

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

Nicely put Gramps. We’re very excited to see the dyno results.
by sandboxer
Tue Apr 02, 2019 10:38 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

WorldChampGramp just summed it up nicely in his post regarding port dynamics. I’m going to play with my efi head, but in the meantime I’m still in with the Jr/Sr head program. I’d like a professional effort on my engine until I’ve made enough mistakes to proceed comfortably on my own. That might tak...
by sandboxer
Tue Apr 02, 2019 12:01 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

It looks like you can do the head work on a 300 carburetor head, be able to install 1.94"/1.60" valves and do the port work? I believe I can do a decent job. I have plans for a flow bench but haven’t built it yet, so measuring my work isn’t possible at this point. I’d like to build the be...
by sandboxer
Mon Apr 01, 2019 2:47 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I would like to add that im using the he351 holset on my 300 which spools just over 1500 rpm with a 9 cm ex housing. I will be using this on my 240 build and im fearing it may have some lag. That h1c will be directed more towards top end power especially on the 240. Wouldnt be surprised if you expe...
by sandboxer
Mon Apr 01, 2019 2:45 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Thanks FTF
What rpm are you seeing at the strip?
by sandboxer
Mon Apr 01, 2019 11:02 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I’d use the 240 spit hole rods in the 240 Turbo.
The good 240 rods would be in the 300 NA.
by sandboxer
Mon Apr 01, 2019 9:10 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I’m not sure how this is expected to work well. It looks like nothing lined up and there’s not a lot of meat for improvement.
0D576DA4-F838-45C3-A195-3598FD337602.jpeg
by sandboxer
Mon Apr 01, 2019 9:00 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

You have the larger H1C with the 8 blade compressor. The compressor wheel inducer should measure 54mm. You can measure the inlet diameter to verify. If you measure a 54mm inlet then the turbocharger can make 400 hp without straining. The turbine has a T3 18.5 cm housing which will spool quickly but...
by sandboxer
Sun Mar 31, 2019 10:03 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Thanks! I’ll do an NA and a Turbo. The Clifford dual intake shrunk something fierce during cooling. I’m making my own manifolds with Lunatic Fringe’s AWESOME flanges. The Turbo is an 18.5/52mm The Sioux valve and seat grinding outfit matches the rotary phone...ready for head work:) I’ll do a 240 and...
by sandboxer
Sun Mar 31, 2019 6:11 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Here are a few soldiers...
1987 300
1966 240
1988 300 industrial
1974 240

I’ll figure something out.

E7A0D688-0595-41DB-B372-524F66824681.jpeg
by sandboxer
Sun Mar 31, 2019 2:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Confirmed. The deep breath helped.
by sandboxer
Sun Mar 31, 2019 12:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I love the discourse. Thanks for all the thought food. I’m bouncing around like crazy on what to do, and in among all the questions there is dwell time (rod length), valve size, area under the lift curve, useable rpm, exhaust size, intake runners, etc. I think that the 112* makes a lot of sense with...
by sandboxer
Sat Mar 30, 2019 6:42 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

I see a couple of issues with the aftermarket hydraulic roller lifters for 460s. First is the height. They look taller than conventional roller lifters. Will they fit past the side cover attachment bosses? Second is cost. At $500 plus another $1000 for a custom roller hydraulic cam and pushrods and...
by sandboxer
Sat Mar 30, 2019 12:19 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Excuse my ignorance but would a mechanical roller lifter be any different?
by sandboxer
Fri Mar 29, 2019 3:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Is that unusual somehow? Is the mechanical roller the obvious choice? I suppose for that useage the answer is pretty obvious...
Still trying to figure it out:)
Talked to Crower today for the mechanical cam.
Will order one up as per pmuller9 specs.
by sandboxer
Fri Mar 29, 2019 9:31 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

You want valve lifts .550" or more with a 1.6 ratio rocker. You lose some of that lift because of rocker arm clearance. So you aren't going with a roller cam? I’m torn. Budget is tight and while I don’t mind spending the money, I don’t want to do it twice. I’m waffling between a solid and hydr...
by sandboxer
Fri Mar 29, 2019 9:12 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

Thanks gentlemen. I’ll call Crower today.
by sandboxer
Fri Mar 29, 2019 1:16 am
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

A flat top piston with the Jr head will get you 10:1 compression. You can do a custom piston or look through the forged piston for the Ford 302 in the Summit website. It wouldn't hurt to have a few CCs in the piston top to get a compression ratio closer to 9.6 You will be looking at a cam with arou...
by sandboxer
Thu Mar 28, 2019 11:36 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

The difficult and interesting part of the equation is trying to figure out a cam that is small enough for a street rod, big enough to develop enough hp (given the right head) PLUS being to able to use for either NA or Turbo.... A compromise for sure, and maybe not possible. I know I can’t have it al...
by sandboxer
Thu Mar 28, 2019 8:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Fresh Rebuilt 240
Replies: 120
Views: 7232

Re: Fresh Rebuilt 240

E2B04A7A-BE93-419D-9A70-41EB8CB9C07C.jpeg
THE FRENCHTOWN FLYER wrote:What are you going to use it for / in?
by sandboxer
Thu Mar 28, 2019 8:12 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 484
Views: 70993

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

Thank you!
We’re looking forward to the results.
by sandboxer
Thu Mar 28, 2019 7:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Permanent 300 Six Cyl Head CFM solutions- A Work in Progress
Replies: 484
Views: 70993

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

As well, I believe you had mentioned in previous posts that some off the shelf cams were detonation prone. I believe that Crower was the exception...?