The 83GT

^ It also looks like it also ran it's highest ever MPH.

The tire spin is probably making the system think it has a little higher stall and lower gear at the hit, that is very momentary. At some point if a car has Nitrous on it and you ever intend to spray it, is where the compromises come in and I think they suck, as I always hated them. That's where the tight convertors and high gears shine and what you would do to help N/A times will usually hurt Nitious times on these dual street track cars.

I would get some baseline Nitrious passes in soon if it was me, before anything get changed around.

In my opinion, it seems you have an extremely well balanced combination and good tune. That is good but, makes improvement very incremental and it's the little changes that find small gains.

If it dead hooks with slicks, you will know more then, if all other conditions, ect., remain the same, which is hard to do unless you change tires at the track.

BigBlockRanger wrote:The full Raceweek write-up is over on Bangshift and the Turboforums.  It was a great week with some troubles mixed in, but that's how events like this go.  Total mileage was just over 1300 miles.  

https://bangshift.com/forum/forum/bangshift/project-cars-update/16485-bbr-s-83gt-what-s-old-is-new-back-to-a-bbf/page298#post1339234

https://www.theturboforums.com/threads/the-83gt-back-to-bbf.386025/page-33

Sounds like you had a good time you mentioned the broken alternator bolt in the block i had that happen about 2 years ago and had trouble finding the right length bolt!! I went over to my buddies house that has a body shop that he runs from his house!!He said i have a big box of bolts from jobs he did low and behold in that box i found the right length bolt i needed talk about lucky!!

Picked up a set of stamped steel chrome valve covers to replace the ones we smashed on Raceweek. They don't look as cool as the other ones, but they are a dang sight easier to install!

Oh hey, some SCJ's are here.

BigBlockRanger wrote:Oh hey, some SCJ's are here.  

Nice i talked to my brother last Saturday and he said Summit Racing Tallmadge,Ohio had a complete SCJ head in the Clearance Section For Sale for $500.00 about a half hour later my cousin calls me and tells me the same thing he bought it for $500.00 it was a Display Head!!

BigBlockRanger wrote:Basic rundown of the 552:
4.5" cast RPM crank, RPM H-beams, Probe forged pistons. With these D3 heads (cleaned up intakes and smog bump deleted exhausts) it is right around 9.6:1. This intake is the same efi converted Victor I used in the truck. The throttle body will be the same 1000 cfm Mass-Flo (Pro-M) 4bb one the turbo 302 had on it. The cam is a Lunati Barebones hydraulic cam.
Cam specs: 0.536” / 0.567” 224/233 @ 0.50” 293/293 advertised 112 LSA ICL 107

I would love to swap the cam to something with a bit more duration, but I think I will leave it alone for RMRW.  I can always do it later.

Converter is a Hayes 2400-2800 that worked well in the truck. It may be a little tight in this car, but that is probably a good thing for the mountain driving part of this trip. Particularly since we will be pulling the little trailer.

9.66/1 at 95cc=11.54/1 at 72cc

Almost 2 points of compression should wake it up. Not to mention the added air flow.

Be careful not to regress too far back from where you came from.

With the juice you will be back to the race gas, and next the roller cams, low gears and loose convertors if you get carried away.

You are still Ford Part Numbers at least. 88cc D2OE PI's would have put you at 10.16 to 1 and be OEM. I get the cost benifit bit with the used cast iron vs. new aluminum though.

Since you got'em run'em and your new compression ratio will probably be your new E/T or close to it with the same cam.

For whatever it may be worth, with your current setup to the new heads, same cam ect., the dynamic calculator shows and increase of, to,  Now 8.99/1 Dynamic Comp@190.34 Cranking Compression to 10.72/1 DC@238.55CC. ABDC Intake Valve Close @ 39

For some reason I am seeing E85 in your future.

Are you going to have them ported?

Mark Miller wrote:
Nice I talked to my brother last Saturday and he said Summit Racing Tallmadge,Ohio had a complete SCJ head in the Clearance Section For Sale for $500.00 about a half hour later my cousin calls me and tells me the same thing he bought it for $500.00 it was a Display Head!!

That's a deal! I wish I lived closer to Summit because you can find some killer deals in their clearance section....if you know what you are looking for.

These heads will not go on until I have a different cam in hand. I have a Lunati 10340705 on order directly from Lunati. 110lsa,284/292, 0.582/0.600, 241/249 at 0.050. I don't want to tear it down twice. Not worried about the compression ratio particularly. The 545 I had in this car was 11.6:1 and it was totally happy on 91. We have 93 here locally now, so even better. The only E85 we have is at the Sunoco south of town. I would love to use E, there is just limited availability here. I don't plan on porting them at this point and if it runs low 11's here, high 10's at Thunder Valley, Oklahoma, I probably will not spray it.

I am toying with the idea of making it more of a racecar and less of a streetcar. I want the 98GT to be my go-to drag-n-drive car, so this one can start leaning a little more toward limited street use. I'd like to put an 8.50 cage in it and go thru and redo the wiring that has been scabbed onto for years. A dual fuel system is a possibility so I can run 93 on the street and expensive gas at the track. But, this is all a ways in the future.

Yesterday, I put some fresh spark plugs in it and then fired it up for a minute. Shut it off, then walked around to the front and everything was wet! At first I thought it was water and couldn't figure out where it was coming from. Then I got a whiff of it and realized it was fuel! I flipped the pump on again and watched fuel shoot out of a hole in the crossover hose right in front of the distributor!! Yikes!

I didn't have my glasses so I couldn't look at it closely but it kind of looked like something had poked a hole in it.

Glad it didn't happen on Raceweek, that could have been ugly!!

Pic is from a vid I shot. It was shooting fuel probably 5-6 feet in front of the car.​

I would extend your hard metal fuel line as far as possible, and buy the high dollar alky fuel soft line, if the blue hose is not. Like I always say keep the fire extinguisher handy and in the car. That fuel pump switch is a car saver sometimes also.

Hopefully you get by with 93 pump gas looks like ABDC 46.5 10.37/1DC and 228.66CC with that cam on a 106 ICL. You can spike your gas at the track if needed. You have to go up to 268 degree's on a 114 LSA at a 114 ICL or 68 ABDC to get to 9/1 and 191, or about were you were before.

That Lunati cam and your E/T goals sound good to me, hope it comes in soon.

Jegs has one Lunati #40340734 baby tight lash solid roller left for 410 bucks  285/293 110/104 255/263 .675"/.675" .018"/.018" Lash.

It's not a bad fit for your deal actually in my opinion.

Doubt you want to go that way, just passing it along.

I take it those pistons have the SCJ notch hopefully?

PS: On those Potential Fuel Leaks and Fire, ect.! I was at the track at night decades ago and had some fresh name brand spark plug wires. I don't remember the exact deal but, we could see the spark leakage from the spark plug wires that were close together. It's a good Idea to Check in the Dark with a Spay Bottle of water. Also had a 5.0EFI same Thing. Just Saying.

These pistons do not have SCJ notches. That is something I will address. I will check p2v clearance and if it needs to have notches added, that's fine. No big deal.

^ Those results will be interesting. This may be a stupid question but, I don't believe I have ever seen it asked. Does the higher piston speed off TDC of a 4.5" stroke between a 4.3" stroke have any affect on Piston to Valve Clearance on the Intake Valve, or enough to matter?

Those old SVO crate 514/521's with the 6.605" rods where said to get by with the A443 cams and needed the notch with the C460 or maybe that was only available with a roller cam (?) when they went from the CJ's to the SCJ's. If you have to cut that radial edge I doubt it will be much.

Ford also played with those SVO 460 560HP crates and went from 11.5/1CJ's to 10.5/1SCJ's when the switch was made on the heads and added a intake relief from the period literature and pictures I have seen, hence my question on the stroke length. I was hoping Randy would chime in since he was in on the action.

I looked at my p2v clay pics from when I had the TFS325's and a .700 solid roller with 20 degrees more intake duration.  I think with the rotated SCJ valve position it may be fine.  These pistons have a pretty decent dish, so if it does need a relief, it may be quite minimal.

BigBlockRanger wrote:

Mark Miller wrote:
Nice I talked to my brother last Saturday and he said Summit Racing Tallmadge,Ohio had a complete SCJ head in the Clearance Section For Sale for $500.00 about a half hour later my cousin calls me and tells me the same thing he bought it for $500.00 it was a Display Head!!

That's a deal!  I wish I lived closer to Summit because you can find some killer deals in their clearance section....if you know what you are looking for.

These heads will not go on until I have a different cam in hand.  I have a Lunati 10340705 on order directly from Lunati. 110lsa,284/292, 0.582/0.600, 241/249 at 0.050.  I don't want to tear it down twice.  Not worried about the compression ratio particularly.  The 545 I had in this car was 11.6:1 and it was totally happy on 91.  We have 93 here locally now, so even better.   The only E85 we have is at the Sunoco south of town.   I would love to use E, there is just limited availability here.  I don't plan on porting them at this point and if it runs low 11's here, high 10's at Thunder Valley, Oklahoma, I probably will not spray it.

I am toying with the idea of making it more of a racecar and less of a streetcar.  I want the 98GT to be my go-to drag-n-drive car, so this one can start leaning a little more toward limited street use.  I'd like to put an 8.50 cage in it and go thru and redo the wiring that has been scabbed onto for years.  A dual fuel system is a possibility so I can run 93 on the street and expensive gas at the track. But, this is all a ways in the future.

Yesterday, I put some fresh spark plugs in it and then fired it up for a minute. Shut it off, then walked around to the front and everything was wet! At first I thought it was water and couldn't figure out where it was coming from. Then I got a whiff of it and realized it was fuel! I flipped the pump on again and watched fuel shoot out of a hole in the crossover hose right in front of the distributor!! Yikes!

I didn't have my glasses so I couldn't look at it closely but it kind of looked like something had poked a hole in it.

Glad it didn't happen on Raceweek, that could have been ugly!!

Pic is from a vid I shot. It was shooting fuel probably 5-6 feet in front of the car.​

_____________________________________________________________________________________


When you said more of a Race Car, I tried to hold back, it's hard some days though.

I know these are SR-71's and you have SCJ's and all but, almost 2 points more compression.

Check the cam spec.'s on the below build and the HP and CID. Especially Intake Duration and Lift. It's on a 108LSA ,the Lunati Roller is a 110LSA and 7 degree's less exhaust duration. Pretty close otherwise.

https://www.motortrend.com/how-to/533-ford-big-block-westech-dyno/

Last One 410 bucks. It's your deal and I get the Beauty and Cost of a HFT if the lobes don't go Flat and All.

https://www.ebay.com/itm/404374805737?epid=1534184984&hash=item5e269ddce9:g:pI0AAOSwj0NkrUWA&amdata=enc%3AAQAIAAAA4FrrsKazaUC0jBdYWkjXuj1FKr73%2BcBeU0ZbnivcakpplNSEMXNbTGLgDwMzK1IPVYsvhGz7jp9aaJ2rFrDkED1Qb4xaT0Y5NY3hPr5lXVJmTbiE86fvQ98lzDxFNtmLyaFusxTSggpI%2BNP3wVWHOBhXyxPVcpVpgqc2Xy%2FkzEk2E1HCVXoUxiykoioT%2BRMdmQfTHTk5uamoPGPQkxhyTt4Dxk4sIEiW3WTq4T89Wv0Im%2FmsrJxlkRtoWv2OsrVBfd0EtzgCNIa2rvl12UvCXGvYGUFPOdErJY6CDSptgyxT%7Ctkp%3ABk9SR8jSx8O3Yg

My apology in advance for cluttering up your build thread with the link, I just felt it was worth mentioning with the cam shortage and all. I am Kinda of the View in for a Penny in for a Pound and Aluminum SCJ's New are a Pound to Me, so go for Broke so to Speak. Don't tell the Wife on me please, mine would be pissed too.

I was looking for that P-51 Valve Cut Photo, The Cutter hit right on the outside edge of the notch you have in (the edge high point notch) your piston picture towards the center of the cylinder bore. If you had to Cut it would be just a very small amount in the area, if memory serves correct.

These guys don't have your Lunati in yet as nobody does but, they said they would honor their sale price of almost 100 bucks less then Jegs at least. Just passing it on as $280 for a HFT is stupid money to me for that kind of cam.

https://www.vividracing.com/-p-153382621.html

I agree. That's why I ordered the cam & lifter kit for $235. Evidently, they did not update all of their pricing. lol

https://www.lunatipower.com/voodoo-hydraulic-flat-tappet-cam-lifter-kit-ford-429-460-284-292.html

^ Nice.

I am trying not to drop $400.00 on that Roller myself, most are over $525 and going up and Un-Atainium now and maybe in the future might make it a good investment later or just to have around for a build.

The Hurricane Emergy stock is stupid expensive now and more important though so probably not going to.

PS: When Lunati releases that roller grind as they have before Jegs only shows two (2) in stock, and they sell out quick I have noticed. Then a couple of months latter 2 more pop up at the same price. I doubt it's the regular Ebay sales trick, either.

Vivid Racing said they are even having problems getting LS cams. Not Good!

I'm not going to go solid roller anytime soon, if ever again. Sure the cam is $400, but then lifters are another $500 and springs about the same. So you are dropping $1500+ just to worry about lifters and springs all the time. Not worth it to me anymore.

Valves and guide plates. Whoo hoo.

I have studs, retainers, locks and springs already.​

Popped the #2 valve spring off and replaced the valve stem seal. I'll keep an eye on it and see if that keeps the #2 plug a bit cleaner.

Started fiddling around with putting the big throttlebody and elbow on the 83GT.

This stuff was on the Greenbean, but I decided to put the big Dominator flange elbow/tb on the big engine (that has a Dominator flange intake) and the lower profile 4bbl 4150 flange tb on GB (that has a 4150 flange intake). This switch will also let me use a stock hood on GB to maintain it's stealthiness. Haha.

I turned it nine ways from Tuesday and so far I think forward facing is the best option. I'll probably change my mind.

BigBlockRanger wrote:

Mark Miller wrote:
Nice I talked to my brother last Saturday and he said Summit Racing Tallmadge,Ohio had a complete SCJ head in the Clearance Section For Sale for $500.00 about a half hour later my cousin calls me and tells me the same thing he bought it for $500.00 it was a Display Head!!

That's a deal!  I wish I lived closer to Summit because you can find some killer deals in their clearance section....if you know what you are looking for.

These heads will not go on until I have a different cam in hand.  I have a Lunati 10340705 on order directly from Lunati. 110lsa,284/292, 0.582/0.600, 241/249 at 0.050.  I don't want to tear it down twice.  Not worried about the compression ratio particularly.  The 545 I had in this car was 11.6:1 and it was totally happy on 91.  We have 93 here locally now, so even better.   The only E85 we have is at the Sunoco south of town.   I would love to use E, there is just limited availability here.  I don't plan on porting them at this point and if it runs low 11's here, high 10's at Thunder Valley, Oklahoma, I probably will not spray it.

I am toying with the idea of making it more of a racecar and less of a streetcar.  I want the 98GT to be my go-to drag-n-drive car, so this one can start leaning a little more toward limited street use.  I'd like to put an 8.50 cage in it and go thru and redo the wiring that has been scabbed onto for years.  A dual fuel system is a possibility so I can run 93 on the street and expensive gas at the track. But, this is all a ways in the future.

Yesterday, I put some fresh spark plugs in it and then fired it up for a minute. Shut it off, then walked around to the front and everything was wet! At first I thought it was water and couldn't figure out where it was coming from. Then I got a whiff of it and realized it was fuel! I flipped the pump on again and watched fuel shoot out of a hole in the crossover hose right in front of the distributor!! Yikes!

I didn't have my glasses so I couldn't look at it closely but it kind of looked like something had poked a hole in it.

Glad it didn't happen on Raceweek, that could have been ugly!!

Pic is from a vid I shot. It was shooting fuel probably 5-6 feet in front of the car.​

So my cousin was at the Tallmadge,Ohio Summit Racing Again this past Saturday he only lives 20 minutes away from it!!Any how he sees 2 Complete 95 cc Edelbrock 429-460 Heads in the clearance section!!One was $500.00 the other one was $600.00 he told the manager he would buy them both if he would drop the price of the $600.00 head to $500.00 he said sure so he bought both for a $1,000.00 talk about luck!!

Dang!!

The old "jam it in 1st at 55" mistake(s) took their toll on the angle of the engine! The K-momber has slots and the driver's side bolt was at the top of the slot and the passenger was slid down. Haha.

I loosened the motor mounts and used the engine hoist to rotate the engine back like it should be. I am going to add a limiter to keep it in place better.

Got the throttlebody all done and fired it up. It let out a blood curdling shriek because the IAC was not seating. I am not using an IAC, so I picked up an IAC plug from Motion Raceworks. Bolted it in, no more shriek.

I also might be buying a truck. Haha. 1991 F250 dually, 460/E4OD, 79k miles. No rust, interior is nice, drives like a 1 ton dually.

Sweet!

You may be shocked, at least as I was how solid and reliable those trucks are.

That one may hopefully will be pre SRS. It is also pre governed or should be hopefully like the GM's of 1992 and down.

The SRS Circuit is intertwined with the E40D transmissions I am told on those. It has been said when the capactors in them get old, and go bad, it can break the transmission if the box is not replaced, or say bypassed.

On the 4R70 ( Some F150's )I know for a fact it affects the transmission but, will not cause violent shifts and break it.

Enough with all that, great looking/condition truck from the pictures. Lot of money saved for the Cars too I bet.

PS: Be gentle around the vacuum lines on those in the engine compartment.

SRS? Air bags? It doesn't have airbags.

The engine bay and undercarriage are really clean. The PS pump has been leaking for a while, but other than that, it really looks nice under there.

Engine stayed cool (97+ outside) and the power windows and locks all work. Still has the factory radio too. Both tanks work.

It's a 32 year old truck and not surprisingly, it needs a few things. It has a new master cylinder, but has a low pedal. Felt like it needed to be bled. Rubber brake lines need to be replaced and the turn signal stalk only clicks one way.

Not sure I really need a dually, but whatever. Haha

BigBlockRanger wrote:Got the throttlebody all done and fired it up.  It let out a blood curdling shriek because the IAC was not seating. I am not using an IAC, so I picked up an IAC plug from Motion Raceworks.  Bolted it in, no more shriek.  

I also might be buying a truck. Haha.  1991 F250 dually, 460/E4OD, 79k miles.  No rust, interior is nice, drives like a 1 ton dually.

Damn that's a clean truck and low miles if 79k is the original miles,they don't look like that here in Northeast,Ohio!!

The black truck above is the exception to what old trucks look like in Ohio it also has a 460 and E4OD!!It was never driven in the Winter and when my buddy passed away From Leukemia he put it in in the will for his brother to get it along with his enclosed trailer[that's also in the picture] and Mustang that ran mid 10's N/A in the 1/4 mile with a 306 SBF !!