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Author Topic: 331  (Read 718 times)
68sportcoupe
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Location: pelham NH
this is where it all started 16 bday


331
« on: April 16, 2017, 09:40:16 am »

I'm redoing my 331
After opening it up I found
 dome pistons witch I assumed where there do to the .098
Head gasket
Looking for something for the street good low end and vacuums for power brakes
Maybe a few trips to the track once or twice a year
What pistons should I be looking for flat or dished
Heads are afr 205 -1450
Scat crank
H  beam rods
Intake is fore motorsports Vic jr nock off
Also have an rpm air gap
Sportsman block
Looking at getting pistons
Then balance it all and a custom cam
Right now the cam is solid roller
248/254 at .050
650/637 lift
Should I switch to a hydro roller
Or a smaller solid roller
This is going in my 68 falcon with a toploader
3.50 gears 
Thanks for any advice
Thanks
Mike


* IMG_7467.JPG (2006.73 KB, 4032x3024 - viewed 29 times.)
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68 falcon sportcoupe 289 tpldr 9"detroit lkr 390s.
67 falcon 351 w.
68 falcon fact ac 6 cyl.
68 falcon undergoing v8 swap.
67 falcon best one i got no rot mint interior
68sportcoupe
6 Banger
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Posts: 82

Location: pelham NH
this is where it all started 16 bday


« Reply #1 on: April 16, 2017, 09:59:25 am »

Intake


* IMG_7493.PNG (1611.3 KB, 640x1136 - viewed 18 times.)
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68 falcon sportcoupe 289 tpldr 9"detroit lkr 390s.
67 falcon 351 w.
68 falcon fact ac 6 cyl.
68 falcon undergoing v8 swap.
67 falcon best one i got no rot mint interior
juiced coupe
Six figures worth of don't give a f*ck
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« Reply #2 on: April 16, 2017, 11:27:00 am »

Depending on final deck clearance and head gasket selection, a flat top will put you in the mid/low 10:1 area. Jim sells some nice Wisecos that he has custom made for FS.

Since you are already setup for a solid roller, sticking with it makes sense. A custom TLSR, designed for pump gas and tall gears should be easily achievable.


A friend of mine runs a flat top 347 with those same heads and a custom SFT, and it does great on the street.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
68sportcoupe
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Posts: 82

Location: pelham NH
this is where it all started 16 bday


« Reply #3 on: April 16, 2017, 11:52:31 am »

It looks to be zero deck now going to have to bring it somewhere to get it balanced it had a weird vibe to it the guy I bought from told me it was 28 oz and I ran the same stuff off my 289
Wish woody was closer
Thanks
Mike
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68 falcon sportcoupe 289 tpldr 9"detroit lkr 390s.
67 falcon 351 w.
68 falcon fact ac 6 cyl.
68 falcon undergoing v8 swap.
67 falcon best one i got no rot mint interior
David Claflin
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« Reply #4 on: April 16, 2017, 04:04:27 pm »

A little milder cam would probably make it more liveable on the street, like in the low 230s
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1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
347HO
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« Reply #5 on: April 16, 2017, 04:10:01 pm »

👆
Go Hydraulic and even less maintenance...
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... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
68sportcoupe
6 Banger
**
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Posts: 82

Location: pelham NH
this is where it all started 16 bday


« Reply #6 on: April 16, 2017, 05:55:04 pm »

Is a solid really that much maintenance
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68 falcon sportcoupe 289 tpldr 9"detroit lkr 390s.
67 falcon 351 w.
68 falcon fact ac 6 cyl.
68 falcon undergoing v8 swap.
67 falcon best one i got no rot mint interior
juiced coupe
Six figures worth of don't give a f*ck
Global Moderator
Big Block
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Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #7 on: April 16, 2017, 09:11:45 pm »

Is a solid really that much maintenance

If the cam is properly designed for street use and the polylocks are set correctly, no.

I know people who go for years without checking lash on street rollers and mild SFTs, only to find that nothing has changed when they do check it.

If you weren't already equipped for a solid roller, I'd recommend the hydraulic. Its a little quieter and even less maintenance. With a hydraulic roller, I don't even remember the last time that my valve covers were off. But a good street roller is still low maintenance.

But with a good SR, you should pick up some low end power as well as extended the upper range compared to a hydraulic.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
68sportcoupe
6 Banger
**
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Posts: 82

Location: pelham NH
this is where it all started 16 bday


« Reply #8 on: April 17, 2017, 07:12:06 am »

I'm leaning toward the solid
I drove a little this summer with the big cam and 300 gears in the rear
And it wasn't really that bad but it nothing till nearly 4000 rpm
And with the .098 gasket if I lugged it it would ping

Next question what about the intakecis that signal plane in the pic ok for street
I have an rpm air gap the signal fits under my hood without a spacer
Thanks again guys
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68 falcon sportcoupe 289 tpldr 9"detroit lkr 390s.
67 falcon 351 w.
68 falcon fact ac 6 cyl.
68 falcon undergoing v8 swap.
67 falcon best one i got no rot mint interior
juiced coupe
Six figures worth of don't give a f*ck
Global Moderator
Big Block
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Posts: 8038


Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #9 on: April 17, 2017, 11:11:14 am »

With the tall gears, a dual plane would be more responsive.

I wouldn't recommend going out and buying one. But if you have both, I'd probably lean towards the Air Gap. Overall, it'll likely be a better fit.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
347HO
A-1 Super Genious / Director of Maintenance
Section Moderator
Big Block
****
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Posts: 12777


Location: Seattle, Washington
I believe they landed on the moon.


« Reply #10 on: April 17, 2017, 11:37:37 pm »

The advantage of a TLSR is negated by not checking it and either dailing it back in and regularly checking it to ensure nothing has changed.
On the flipside....  Youre already setup.
Logged




... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
juiced coupe
Six figures worth of don't give a f*ck
Global Moderator
Big Block
*****
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Posts: 8038


Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #11 on: April 18, 2017, 11:36:57 am »

The advantage of a TLSR is negated by not checking it and either dailing it back in and regularly checking it to ensure nothing has changed.

What I was getting at was that unless something is wrong, it shouldn't be changing.

Mild street rollers don't beat the hell out of valvetrains like race cams do. If setup properly, rockers don't back themselves out.

Once dialed in, I can't think of any reason to pull the valve covers on a street roller more than once a year. But unless something is wrong, I suspect that nothing would have changed.

If something is faulty or setup wrong, it wouldn't matter what kind of setup you have.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
289nate
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Location: Los Angeles

« Reply #12 on: April 20, 2017, 05:53:13 pm »

Are my eyes deceiving me or is that picture in your first post a dished piston with a small section by the huge intake valve relief broken off?
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
289nate
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Big Block
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Posts: 11394


Location: Los Angeles

« Reply #13 on: April 20, 2017, 06:04:23 pm »

Nevermind, my eyes were playing tricks on me.  It's a dome.  

I'd go with a hydraulic roller if you aren't one to turn wrenches (you'll need to periodically check lash even if it doesn't need adjusting), don't want to turn higher rpm, and are going to put a lot of miles on it.

Solid could work and is cheaper since you already have the lifters (which I assume aren't beat to death).  I've run a solid roller on the street for a while.  But it was a weekend cruiser that saw the drag strip which I liked tinkering with.  I've also daily driven a solid flat tappet in a 289.  Not that big of a deal to me to set the valves every once in a while.
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
al2
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« Reply #14 on: April 20, 2017, 08:37:26 pm »

E-85 a option. Leave the dome.
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