Search found 759 matches
- Thu May 02, 2024 2:14 pm
- Forum: Engine Tech
- Topic: carburettor cleaning
- Replies: 31
- Views: 2528
Re: carburettor cleaning
A separate but, related question that I have is, is there anything, in conjunction with ultrasound that has been used, successfully, to free stuck throttle shafts. I have a 6 gallon tank and use a heavy duty industrial cleaner in it at about 4/1. I soaked a 4412 and a 550 cfm Holley in it, for 3 hrs...
- Thu May 02, 2024 3:59 am
- Forum: Engine Tech
- Topic: changing rocker ratio
- Replies: 6
- Views: 384
Re: changing rocker ratio
What is the lifter bore spacing? Is there room for mushroom lifters?
- Wed Apr 24, 2024 2:40 am
- Forum: Vintage/Classic/Historical Engine Tech
- Topic: Jay Leno -- It's a Dusie!
- Replies: 7
- Views: 1486
Re: Jay Leno -- It's a Dusie!
The Dusenberg 4-valve OHC cylinder head combustion chamber looks very much like a DFX Cosworth. https://i0.wp.com/www.macsmotorcitygarage.com/wp-content/uploads/2023/02/duesenberg-J-chamber-valves-600.jpg?w=600&ssl=1 https://www.macsmotorcitygarage.com/inside-americas-greatest-straight-8-the-19...
- Tue Apr 23, 2024 12:49 pm
- Forum: Engine Tech
- Topic: Wrist pin bushings
- Replies: 1
- Views: 178
Wrist pin bushings
I have a set of bushed SBF rods. The Ford pin bushing are .9805 OD and I want to open them up to .927 for SBC pistons w/floating pins. That will give a wall thickness of .0267. My other option would be to press fit the pins in the bushings. Looking at bushings,the only thing I can find with close to...
- Tue Apr 23, 2024 12:27 pm
- Forum: Engine Tech
- Topic: Ford Cleveland NASCAR cylinder heads
- Replies: 14
- Views: 1098
Re: Ford Cleveland NASCAR cylinder heads
So they must have taken a different block, cam etc? Tom NO, not the block ... used a Cleveland block or Ford race block but, they were E I I E E I I E port layout, like a Chevrolet, with a dedicated intake manifold, cam core and valve covers; needing custom headers. . I would prefer to say it was l...
- Tue Apr 16, 2024 3:23 am
- Forum: Engine Tech
- Topic: Tow Truck Engine
- Replies: 11
- Views: 742
Re: Tow Truck Engine
I figure that the best compromise, would be a 224° @ .050 SR cam lobe for what you want. The longest .020 duration lobe I could find for that .050 dur was 262°, in a SR. With a 115 ICL, you could do it with the 72cc head but,you'd have to run ~.025 deck clearance on the piston to get by with 92 oct ...
- Sun Apr 14, 2024 4:45 pm
- Forum: Engine Tech
- Topic: dynamic compression street cam ( cont...)
- Replies: 11
- Views: 587
Re: dynamic compression street cam ( cont...)
It's not the overlap that bleeds off compression, it's the IVC position. The later it closes, the less air is trapped.
- Sat Apr 13, 2024 12:26 pm
- Forum: Engine Tech
- Topic: Tow Truck Engine
- Replies: 11
- Views: 742
Re: Tow Truck Engine
I would change out the solid roller. A new cam will be +/- $650. For about 1/2 that cost, you can go to a HFT cam and lifters.
For your purpose, you don't need the ramps or lift that the roller can give.
For your purpose, you don't need the ramps or lift that the roller can give.
- Thu Apr 11, 2024 3:09 am
- Forum: Engine Tech
- Topic: 11.5 compression, Iron Head, 91 octane
- Replies: 40
- Views: 1938
Re: 11.5 compression, Iron Head, 91 octane
Tuner, I'm interested in how you got this slope, "20 at 2000 with a slope to 26 at 6000".
What kind of springs did you use for that or what tricks were involved?
What kind of springs did you use for that or what tricks were involved?
- Fri Apr 05, 2024 8:10 pm
- Forum: Engine Tech
- Topic: Thunderbird racers
- Replies: 7
- Views: 365
Re: Thunderbird racers
I gotta ask, why not a 351 based SBF?
Either a Bill Elliott inspired C or a W.
Either a Bill Elliott inspired C or a W.
- Tue Apr 02, 2024 1:08 pm
- Forum: Engine Tech
- Topic: Solid roller spring suggestions please
- Replies: 15
- Views: 1141
Re: Solid roller spring suggestions please
On a similar cam (270 @ .050) but, 1.76 RR (.710 valve lift), Bullet recommended 220/230 seat pressure and 575/620 open.
WRM's 1343 PAC's fit that bill.
WRM's 1343 PAC's fit that bill.
- Mon Apr 01, 2024 12:07 pm
- Forum: Engine Tech
- Topic: 351w crank specs
- Replies: 7
- Views: 550
Re: 351w crank specs
Check out the different bearing suppliers for the thickness of the bearing shells. Find a shell that is .0005 thinner that your Clevite's and get a 1/2 set. Replace one side on the rods that you want to open up.
- Thu Mar 28, 2024 12:42 pm
- Forum: Engine Tech
- Topic: Any of you guys have an F.E. Ford manual flywheel sitting around ?
- Replies: 6
- Views: 571
Re: Any of you guys have an F.E. Ford manual flywheel sitting around ?
Straight from the horses mouth.
- Thu Mar 28, 2024 4:28 am
- Forum: Engine Tech
- Topic: Any of you guys have an F.E. Ford manual flywheel sitting around ?
- Replies: 6
- Views: 571
Re: Any of you guys have an F.E. Ford manual flywheel sitting around ?
The factory spec for the crankshaft pilot diameter is 2.499/2.500, add what ever clearance you want to it.
- Sun Mar 24, 2024 5:08 pm
- Forum: Engine Tech
- Topic: What can I do do with old parts catalogs?
- Replies: 14
- Views: 977
Re: What can I do do with old parts catalogs?
If you catalog them and list them on this site and others, I'm sure you could get rid of them and maybe make a buck or two.
I'd be interested in any piston catalogs.
I'd be interested in any piston catalogs.