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Search found 150 matches

by Firepower354
Sun Apr 07, 2019 3:52 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Has anyone ever built something like this?
Replies: 48
Views: 1638

Re: Has anyone ever built something like this?

A much better choice than the Mercruiser block is the Mopar aluminum midget blocks. Peto and Mudge built a Comp Eliminator inliner from 3-and-a-half cylinders out of one and two-and-a-half cylinders out of t'other. With very little on-track drag strip time they got it in the sevens before John pass...
by Firepower354
Sun Apr 07, 2019 10:27 am
Forum: 240-300 "Big Block" Six Performance
Topic: Has anyone ever built something like this?
Replies: 48
Views: 1638

Re: Has anyone ever built something like this?

There have been several 3.7 Mercruisers built in Comp Eliminator drag classes that used 4.600" bores and larger. But they are based on the 460 engines, so that's not really difficult for them. I have two of these engines that I'm doing some prototype race parts development for currently. I've ...
by Firepower354
Sat Apr 06, 2019 11:09 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Has anyone ever built something like this?
Replies: 48
Views: 1638

Re: Has anyone ever built something like this?

When required for tractor puller use of stock castings at least mostly, the heroic efforts of changing bore centers that far almost make sense. For a Ford BB6, I can't imagine it being reasonable. A thick deck plate, extending past the original block, with Darton tied-deck sleeves, could get 4.300 b...
by Firepower354
Tue Mar 26, 2019 6:58 pm
Forum: 240-300 "Big Block" Six Performance
Topic: overhead cam.
Replies: 29
Views: 938

Re: overhead cam.

Packaging vs cost vs efficiency vs emissions etc Simpler VVT is a big advantage of the DOHC setup, but as mentioned, cubes can make up a lot. Moving to 4 bolts/cyl on the LS from 5 on the SBC allowed much better intake port arrangement. LT and likely the new truck mill are carrying that further, rai...
by Firepower354
Sun Mar 17, 2019 8:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Long runner 2bbl?
Replies: 5
Views: 376

Long runner 2bbl?

A bucket of elbows and a 2100? There's not a lot of room in an E, so I was looking at stacking.
Has anyone used the eBay knockoff 2100 carbs? They're so cheap as to be tempting.

Image
by Firepower354
Thu Feb 21, 2019 11:05 am
Forum: Orphan Inlines
Topic: Super Red Diamond RD450 gasser
Replies: 7
Views: 4105

Re: Super Red Diamond RD450 gasser

https://fordsix.com/img/_data/i/upload/2019/02/21/20190221110051-07961db5-sq.jpg https://fordsix.com/img/_data/i/upload/2019/02/20/20190220214245-dd047f5c-sq.jpg https://fordsix.com/img/_data/i/upload/2019/02/20/20190220214244-8ea48122-sq.jpg https://fordsix.com/img/_data/i/upload/2019/02/20/201902...
by Firepower354
Tue Feb 19, 2019 10:44 pm
Forum: Orphan Inlines
Topic: a red diamond in a pick up
Replies: 22
Views: 880

Re: a red diamond in a pick up

Not sure where the pics from my thread went, but next to a Chev 292, it's substantially bigger.
by Firepower354
Sun Feb 17, 2019 7:24 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: not much discussed- crank case pressures zero gap rings
Replies: 18
Views: 698

Re: not much discussed- crank case pressures zero gap rings

A pan-evac passive system would obviously have to be plumbed after the turbo, and only in a short and/or unmuffled setup, both imprudent on the street.
by Firepower354
Fri Feb 15, 2019 1:55 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: not much discussed- crank case pressures zero gap rings
Replies: 18
Views: 698

Re: not much discussed- crank case pressures zero gap rings

Earliest I'm familiar with vacuum pumps were converted Ford smog pumps. It should be pretty easy to sort the plumbing, and add a valve to keep from sucking all the seals and gaskets in. Maybe in the pushrod cover? Discharge separator tank tied in to the relief valve inlet, to take back any oil drawn...
by Firepower354
Tue Feb 12, 2019 3:54 pm
Forum: 240-300 "Big Block" Six Performance
Topic: LS rockers on a 300?
Replies: 7
Views: 559

Re: LS rockers on a 300?

I've wandered a ways down a similar path last fall, before putting it all in cold-storage. https://www.ebay.com/itm/Chevy-GM-LS1-LS6-1-8-Ratio-Adjustable-Stainless-Steel-Roller-Rocker-Arm-Set/302397323550?epid=2148409320&hash=item466848f91e:g:XEUAAOSwCJxaAtEn:rk:1:pf:0 Lots of cheap NASCAR take ...
by Firepower354
Tue Feb 12, 2019 3:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Re-curved distributors on "modified engines" What do you mean???
Replies: 13
Views: 1076

Re: Re-curved distributors on "modified engines" What do you mean???

I am re-learning what [i] Ignition theory and tuning application is not in everyones 'toolbox'. Timing light operation isn't even common knowledge. Nice option available to have an advance curve verified as compatible with the engine build goals. I don't know anyone locally still sets up a distribu...
by Firepower354
Tue Feb 12, 2019 12:30 am
Forum: Orphan Inlines
Topic: a red diamond in a pick up
Replies: 22
Views: 880

Re: a red diamond in a pick up

There are always pistons going the opposite way, so not really much of an issue. Crankcase vacuum is more for ring stability in higher revving engines. Red Diamonds ain't. It may add a couple horses at the 4000 rpm or so point. A 6.7L Cummins isn't a bad comparison. A lot will depend on camshaft and...
by Firepower354
Mon Feb 11, 2019 1:01 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Re-curved distributors on "modified engines" What do you mean???
Replies: 13
Views: 1076

Re: Re-curved distributors on "modified engines" What do you mean???

IMO, a verified set of timing marks, decent timing light, and accurate tach, make a fine alternative to a Sun dizzy-spinner. We used to buy the generic kits for HEI GM and usually end up with the light weights, and one each soft & medium spring, on mild SBC with lazy heads and loose quench. Vac ...
by Firepower354
Mon Feb 11, 2019 11:57 am
Forum: Orphan Inlines
Topic: a red diamond in a pick up
Replies: 22
Views: 880

Re: a red diamond in a pick up

ok good . getting places. a turbo up top makes every kinda sense. space may be issue. I'm going to use a vacuum pump from a 6.9 diesel, as a scavenge pump for crank case evac. Iwith a pump like that, I wonder if I can pull rerun oil from a turbo bsck into pan..... Likely it will never happen this w...
by Firepower354
Fri Feb 08, 2019 4:31 pm
Forum: Orphan Inlines
Topic: a red diamond in a pick up
Replies: 22
Views: 880

Re: a red diamond in a pick up

wow, thanks for the shout!! very useful info . especially, on exhaust . the splits urge me to do a twin scroll remote turbo. very useful thanks agin. don't stay away too long. so do u think this will work in a pickup.? assume a truck like I described earlier. the bell, clutch, and flywheel I can ra...
by Firepower354
Wed Feb 06, 2019 5:45 pm
Forum: Orphan Inlines
Topic: a red diamond in a pick up
Replies: 22
Views: 880

Re: a red diamond in a pick up

best educated guess on weight with factory manifolds is just under a 1000 pounds, about 800 is what a fellow who pulls with them guesses. alot less with custom manifolds. he say exhaust is 100 pounds Far less intake 60 front pulley 50 etc Less 40 pound flywheel Holy crap, lots more. Flywheel, clutc...
by Firepower354
Wed Feb 06, 2019 1:18 pm
Forum: Orphan Inlines
Topic: a red diamond in a pick up
Replies: 22
Views: 880

Re: a red diamond in a pick up

Dave, I got your email, but it's easier to keep my place here. Ha No, I didn't get all that far on mine before my move, so it's in real-cold storage ATM. I had my RD450 block sonic checked, and it should go 4.600 safely, from the 4.503 it is once the sleeves are dropped out. I bought a set of used B...
by Firepower354
Tue Dec 27, 2016 11:00 pm
Forum: Orphan Inlines
Topic: Super Red Diamond RD450 gasser
Replies: 7
Views: 4105

Re: Super Red Diamond RD450 gasser

Sitting next to a 292, ready to get sonic tested, as soon as I get help loading the big gals.

Image
by Firepower354
Sun Dec 25, 2016 12:11 am
Forum: 240-300 "Big Block" Six Performance
Topic: aussiespeed
Replies: 6
Views: 1340

Re: aussiespeed

Mark has been quite busy, designing, testing and introducing new products. That's tougher than cranking out the same marginal product for decades. In AU, the BB6 Ford and Chev 194-292 are quite rare, and in the grand scheme, the market here ain't exactly ripe. I haven't seen any R&D work from Of...
by Firepower354
Tue Nov 22, 2016 2:24 pm
Forum: Orphan Inlines
Topic: Mercruiser 170 / 470 IO engine
Replies: 8
Views: 2103

Re: Mercruiser 170 / 470 IO engine

by Firepower354
Tue Jul 19, 2016 10:31 pm
Forum: Orphan Inlines
Topic: Mercruiser 170 / 470 IO engine
Replies: 8
Views: 2103

Re: Mercruiser 170 / 470 IO engine

Definitely not a 2.3 base. It's 3.7 liters. Nifty aluminum block, lame 460 smog head. Alternator built in to water pump pulley or some such nonsense, a common failure. HAMB has a mega-thread on them, as hotrod powerplant. 170hp isn't a lot, but if you're not in a big hurry, should be fine. Aluminum ...
by Firepower354
Thu Jun 02, 2016 8:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: wet sleeves
Replies: 43
Views: 6130

Re: wet sleeves

Pretty high speed stuff. I do a lot of my own sleeves from blanks, but would use Darton in a second on a big bore.
4.125 is likely about all with any margin of safety, IMO.

http://www.darton-international.com/midinfo.html
by Firepower354
Tue May 31, 2016 8:41 pm
Forum: 240-300 "Big Block" Six Performance
Topic: wet sleeves
Replies: 43
Views: 6130

Re: wet sleeves

Did any one check with Darton?
by Firepower354
Tue May 03, 2016 7:35 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Have you guys seen this?!?
Replies: 10
Views: 1617

Re: Have you guys seen this?!?

Mark at Aussie Speed is working with a US distributor, Small Town Speed, to help amortize shipping costs.
Freight is cheaper than air-mail.
by Firepower354
Sun Mar 20, 2016 2:27 am
Forum: 240-300 "Big Block" Six Performance
Topic: 351 Pistons
Replies: 137
Views: 13558

Re: 351 Pistons

At risk of bludgeoning for blasphemy, 292 C rods?
6.766, a little wider, .927 pin, should work with dished 350-6" pistons
http://www.ebay.com/itm/Wiseco-PTS509A3 ... Fi&vxp=mtr
by Firepower354
Sat Mar 19, 2016 2:36 am
Forum: 240-300 "Big Block" Six Performance
Topic: 351 Pistons
Replies: 137
Views: 13558

Re: 351 Pistons

Does any one know if there's enough meat in these to mill the pocket a bit deeper? http://www.ebay.com/itm/L2446-040-351W-Ford-Piston-Set-of-TRW-Forged-Pistons-Used-Balanced-Pistons-/311553615402?hash=item488a0ae62a:g:TxUAAOSwWTRWzNL~&vxp=mtr There was enough material until some one drilled und...
by Firepower354
Fri Mar 18, 2016 4:16 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 351 Pistons
Replies: 137
Views: 13558

Re: 351 Pistons

Does any one know if there's enough meat in these to mill the pocket a bit deeper?


http://www.ebay.com/itm/L2446-040-351W- ... L~&vxp=mtr
by Firepower354
Fri Mar 11, 2016 12:50 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Keith Dorton intake/header combo
Replies: 7
Views: 1731

Re: Keith Dorton intake/header combo

I don't know if a carbureted version could keep the mixture from separating but the BMW ETA intake design folds 550mm of runner where the I-type fits 360mm. Stock EFI 4.9L intake would seem to be a decent basis, but reasonable side draft carbs are scarce here. https://img2.sprzedajemy.pl/540x405_bmw...
by Firepower354
Wed Mar 09, 2016 7:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Keith Dorton intake/header combo
Replies: 7
Views: 1731

Re: Keith Dorton intake/header combo

This one was bouncing the web a while back, and is kinda-sorta what I was thinking:

Image
by Firepower354
Sun Feb 28, 2016 12:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Keith Dorton intake/header combo
Replies: 7
Views: 1731

Re: Keith Dorton intake/header combo

I've long thought that would be a great way to build a setup, as long as major tuning changes were not in the plans.
by Firepower354
Wed Jul 15, 2015 4:34 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Turbo selection
Replies: 15
Views: 3267

Re: Turbo selection

I'm getting a good vibe for this project. The engine is a little tired, but I have another so if it frags I won't cry.
by Firepower354
Sun Jul 12, 2015 4:51 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Turbo selection
Replies: 15
Views: 3267

Re: Turbo selection

From my research it seems the hy35 spools too quick and is probably restrictive (9cm exhaust housing) the hx35 is a good fit. Two members on this forum that I know of use it. That s200...just took a quick look at the compressor map and it doesn't seem bad for a 300. I don't know anything about draw...
by Firepower354
Sun Jul 12, 2015 4:31 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Turbo selection
Replies: 15
Views: 3267

Re: Turbo selection

Fingers wrote:I don't think either will be suitable for a draw through due to a lack of oil seals. Blow through will be a different story.



Aaah, I'll need to find one that can accept the carbon seals.
Maybe the 3.8 supercharger on the same shelf, will get pressed in to service instead.
by Firepower354
Fri Jul 10, 2015 4:25 pm
Forum: Turbo, Supercharger, and Nitrous
Topic: Turbo selection
Replies: 15
Views: 3267

Turbo selection

Any input on the ones I have:
Holset HX35
Holset HY35
Switzer S200

Stone-age draw-thru carb setup, 300, c6, 3500lb, 3.00 gears
by Firepower354
Fri Jul 10, 2015 4:20 pm
Forum: 240-300 "Big Block" Six Performance
Topic: LS Headed 300-6
Replies: 14
Views: 2115

Re: LS Headed 300-6

I'd read that the block flexes, or it would be easy-ish to cap each head and make them independent.
by Firepower354
Thu Jul 02, 2015 11:11 pm
Forum: 240-300 "Big Block" Six Performance
Topic: The heads boss, The heads !
Replies: 35
Views: 6678

Re: The heads boss, The heads !

Now that NASCAR "small blocks" are at 4.5" bore centers, those may be an interesting attempt?
Large bore size is probably going to keep pre-machined ones from working, but the castings usually have plenty of meat to move things around.
by Firepower354
Sun May 24, 2015 9:56 pm
Forum: Orphan Inlines
Topic: Super Red Diamond RD450 gasser
Replies: 7
Views: 4105

Re: Super Red Diamond RD450 gasser

An even bigger International six in the same engine family: The RD 501. 4.5" bore without sleeves and 5.25" stroke with four barrel carb. I had one in an old IH ten wheeler and it had a significant power increase over the RD 450 it replaced. Rated horsepower at 3000; 215 from 1966 to 1972...
by Firepower354
Wed Feb 25, 2015 3:59 pm
Forum: 240-300 "Big Block" Six Performance
Topic: i think i found 8 new HD exhaust manifolds
Replies: 20
Views: 6269

Re: i think i found 8 new HD exhaust manifolds

Revision C of that part number comes up for a 385-series?

If it is the 300HD part, the price is super.
http://www.nospartsltd.com/product-p/d9tz9430a.htm
by Firepower354
Sun Feb 15, 2015 4:55 pm
Forum: Orphan Inlines
Topic: Super Red Diamond RD450 gasser
Replies: 7
Views: 4105

Super Red Diamond RD450 gasser

I've been wanting an even bigger six, when I found this local. Bottom end and valve gear is great. Sleeves (replaceable) and likely slugs are shot. A couple valve stems are sticky. If the pistons can't be cleaned-up and coated back to stock size by Swain Tech, I could leave the sleeves out and run 4...
by Firepower354
Tue Apr 01, 2014 7:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Source for Trans Cooler lines for a '93?
Replies: 8
Views: 1156

Re: Source for Trans Cooler lines for a '93?

I just replaced my Michiganized trans lines, today, on my 95 F250. Two 6' sticks of 3/16" line did it.
I had to cut the lines and swap the original fitting on the radiator end, but otherwise pretty easy.
by Firepower354
Sat Feb 22, 2014 2:36 pm
Forum: 240-300 "Big Block" Six Performance
Topic: LS1 heads .... again
Replies: 23
Views: 2752

Re: LS1 heads .... again

How about sealing the cut ends, making 2 independent heads, for water purposes? They can butt together for valve cover sealing. While I agree with FTF on the spacing being a potential source of airflow losses, if the chamber is smaller than the bore, shouldn't the effect be negligible? Of course, wh...
by Firepower354
Mon Nov 18, 2013 11:25 am
Forum: 240-300 "Big Block" Six Performance
Topic: big six max rpm
Replies: 82
Views: 8677

Re: big six max rpm

Worth a hyd-roller retrofit? Solid should hold lash for a good while, if good parts?