[cv67]

-Need to reuse intake carb for now
Cannot stroke and buy new Heads...stroking vs cost of new heads pretty close. If the better 350 got me what I wanted Im looking at maybe $800 to get it back together.

Currently...
350 with 230cc head
10:1 6" rod
Stick
4.11
26" d.radial
Currently SR cam with 250 int 670 on a 110
Will keep Team G and port for now til I can afford something better
750 DP holley

With reusing current heads
-Same motor with 11:1 compression

-11:1 with [email protected] 6xx lift 106 lsa


-11:1 383 with either cam

-11:1 396 with either cam?

OR

11:1 350 with AFR 210 comp port head


Not too concerned with manners, want to feel some power between 3-3500 meaning starting to come on but at 4k want a HARD pull to 7k+-
Realize running a stroker up that high may not be ideal

Money IS an object but dont want to put it back together and be "slightly better"...hard to tell what it was supposed to run like being as the intake was sucking oil from the gasket and the pusrods flexing like crazy.

Will check to see where the cam currently is degreed. Hate to buy a cam if I have to but if I have to then so be it.

6500 comes awful quick so keep that in mind. Will keep a solid roller.

THoughts? Power levels, Peaks?

 

[superstocker72]

Fix the pushrods and intake gasket and see what it does
if you do build something else go stroker, get a kit with a light rotating assembly, the torque is unbelievable, and it will scream to 7k.

 

[Dave427]

Build your stroker and re-use haeds, cam, intake etc.

Dave

 

[dreis454]

You KNOW I'm gonna say it................................go BB.

 

[jcook76]

You KNOW I'm gonna say it................................go BB.

No replacement for displacement.

 

[trmnatr]

-Need to reuse intake carb for now
Cannot stroke and buy new Heads...stroking vs cost of new heads pretty close. If the better 350 got me what I wanted Im looking at maybe $800 to get it back together.

Currently...
350 with 230cc head
10:1 6" rod
Stick
4.11
26" d.radial
Currently SR cam with 250 int 670 on a 110
Will keep Team G and port for now til I can afford something better
750 DP holley

With reusing current heads
-Same motor with 11:1 compression

-11:1 with [email protected] 6xx lift 106 lsa


-11:1 383 with either cam

-11:1 396 with either cam?

OR

11:1 350 with AFR 210 comp port head


Not too concerned with manners, want to feel some power between 3-3500 meaning starting to come on but at 4k want a HARD pull to 7k+-
Realize running a stroker up that high may not be ideal

Money IS an object but dont want to put it back together and be "slightly better"...hard to tell what it was supposed to run like being as the intake was sucking oil from the gasket and the pusrods flexing like crazy.

Will check to see where the cam currently is degreed. Hate to buy a cam if I have to but if I have to then so be it.

6500 comes awful quick so keep that in mind. Will keep a solid roller.

THoughts? Power levels, Peaks?

On a budget fix the pushrods, deck the block to get it at 0 deck but I prefer .005"+ out of the hole and use a thicker head gasket to keep your quench at .040"-.045" and put a camshaft in it to work good with your heads

 

[cstraub]

With that much head on a 350 CID engine you need to go WAY down on camshaft. Something to chew on, an Cup engine uses an intake port in the 230cc range and spins 8000rpm plus.

383 under those heads would be a better choice as piston speed will swallow up some runner volume but still, small camshaft..

 

[trmnatr]

With that much head on a 350 CID engine you need to go WAY down on camshaft. Something to chew on, an Cup engine uses an intake port in the 230cc range and spins 8000rpm plus.

383 under those heads would be a better choice as piston speed will swallow up some runner volume but still, small camshaft..

Thats like an apple to an orange though isn't it????

Those heads are not 23° heads and have so much R&D in them they could buy everyones car here with their R&D money alone

Thats not a Dart 230 port, Its a Dart 200cc head that was ported to make power in the 7000-7500rpm range.

The Dart 215's on a 355 only make peak around 7000rpm but they do hang on.

Which is why I suggested this camshaft for him plus he is a 4 speed and 4.10 gears, the 4 speed can take a little off the launch to get it to leave
290/306 @.020" tappet lift
260/268 @.050" tappet lift
184/183 @.200" tappet lift
.715"/.625" lift
106° lobe center installed @ 102°

Knowing who ported his heads I would say they are on the money for his goals

EDIT: If it were an automatic i would want the heads on the small side too and if needed make up for it with camshaft but this is a stick car and i like a head thats a little on the bigger side but still descent for the combo

 

[cstraub]

Thats like an apple to an orange though isn't it????

Those heads are not 23° heads and have so much R&D in them they could buy everyones car here with their R&D money alone

Thats not a Dart 230 port, Its a Dart 200cc head that was ported to make power in the 7000-7500rpm range.

The Dart 215's on a 355 only make peak around 7000rpm but they do hang on.

Which is why I suggested this camshaft for him plus he is a 4 speed and 4.10 gears, the 4 speed can take a little off the launch to get it to leave
290/306 @.020" tappet lift
260/268 @.050" tappet lift
184/183 @.200" tappet lift
.715"/.625" lift
106° lobe center installed @ 102°

Knowing who ported his heads I would say they are on the money for his goals

Butch,
230cc is 230cc. Runner volume does not change. Cross sectional area of head will tell how high you can run a given CID.

Better heads less camshaft if you have the same CID and intend rpm range.

Way to much camshaft for intended use.

 

[trmnatr]

Butch,
230cc is 230cc. Runner volume does not change. Cross sectional area of head will tell how high you can run a given CID.

Better heads less camshaft if you have the same CID and intend rpm range.

Way to much camshaft for intended use.

Cross section, sure I agree

His heads were ported for the engine to peak @ 7000-7400rpm

I know Dart's 215cc is a 2.26" @ pushrod (min) and it will only make peak power to 7000rpm on a smaller engine similar to his but IT DOES hang on to the power through 8200 and thats with alot more camshaft. With less camshaft it fell on its face, we are talking over .7 in ET, if we compared hooked vs hooked passes we are talking 1.4 seconds difference in ET. Is it car set up??? Maybe it is.

 

[trmnatr]

230cc is 230cc,,, Agree

What cam would you suggest?

My IVC on the cam I stated is THE SAME IVC as his camshaft even though the suggested cam is 8 degrees larger so he will be getting the same effective stroke length but we are using the head to pack the cylinder better with the camshaft on the intake stroke and even more so from TDC to 90 ATDC,,,, Has worked very well for me and on an almost identical build was a ton faster down the race track

Some info for the OP,,,,

My heads are VERY close to 230cc (also ported for application), they were flowed on two benches, these are the numbers that are down 10-15cfm the entire curve (they also hang on much higher than below), port and exit velocity to the right (port - exit)
.200" 139 - 125 (137 - 255.7)
.300" 200 - 158 (196.5 - 244.5)
.400" 242 - 191 (238.3 - 222.4)
.500" 278 - 215 (272.8 - 203.7)
.600" 298 - 230 (292.7 - 215.9)
.700" 307 - 242 (302.4 - 223.1)
.750" 309 - 245 (303.9 - 224.2)

77% to 90% IE
Flow C/D .600 to .755
CFM per square inch as high as 110cfm and as low as 87cfm

 

[cstraub]

230cc is 230cc,,, Agree

What cam would you suggest?

My IVC on the cam I stated is THE SAME IVC as his camshaft even though the suggested cam is 8 degrees larger so he will be getting the same effective stroke length but we are using the head to pack the cylinder better with the camshaft on the intake stroke and even more so from TDC to 90 ATDC,,,, Has worked very well for me and on an almost identical build was a ton faster down the race track

Some info for the OP,,,,

My heads are VERY close to 230cc (also ported for application), they were flowed on two benches, these are the numbers that are down 10-15cfm the entire curve (they also hang on much higher than below), port and exit velocity to the right (port - exit)
.200" 139 - 125 (137 - 255.7)
.300" 200 - 158 (196.5 - 244.5)
.400" 242 - 191 (238.3 - 222.4)
.500" 278 - 215 (272.8 - 203.7)
.600" 298 - 230 (292.7 - 215.9)
.700" 307 - 242 (302.4 - 223.1)
.750" 309 - 245 (303.9 - 224.2)

77% to 90% IE
Flow C/D .600 to .755
CFM per square inch as high as 110cfm and as low as 87cfm

Need his flow numbers.

 

[cstraub]

230cc is 230cc,,, Agree

What cam would you suggest?

My IVC on the cam I stated is THE SAME IVC as his camshaft even though the suggested cam is 8 degrees larger so he will be getting the same effective stroke length but we are using the head to pack the cylinder better with the camshaft on the intake stroke and even more so from TDC to 90 ATDC,,,, Has worked very well for me and on an almost identical build was a ton faster down the race track

Some info for the OP,,,,

My heads are VERY close to 230cc (also ported for application), they were flowed on two benches, these are the numbers that are down 10-15cfm the entire curve (they also hang on much higher than below), port and exit velocity to the right (port - exit)
.200" 139 - 125 (137 - 255.7)
.300" 200 - 158 (196.5 - 244.5)
.400" 242 - 191 (238.3 - 222.4)
.500" 278 - 215 (272.8 - 203.7)
.600" 298 - 230 (292.7 - 215.9)
.700" 307 - 242 (302.4 - 223.1)
.750" 309 - 245 (303.9 - 224.2)

77% to 90% IE
Flow C/D .600 to .755
CFM per square inch as high as 110cfm and as low as 87cfm

Your flow numbers on a 355 to 7K

610/580
247/253

 

[trmnatr]

Your flow numbers on a 355 to 7K

610/580
247/253

Thats a 110 lobe center???

Not sure what his numbers are, he did post them either in a PM or another thread

 

[cstraub]

Thats a 110 lobe center???

Not sure what his numbers are, he did post them either in a PM or another thread

No. If you want one I will grind you one.

 

[trmnatr]

Camshaft is in the engine, hope we dont get any more snow then it will be sooner

Very interesting to see the difference in cam specs, the cam is pretty wild with the high ratio rockers but i have 1.5s too, its just unbolting the shafts and verifying geometry/pushrods. The grind has to be stable with 1.6/1.7 and 1.8 rockers

We did a 260/268 110 compared to one of the cams we specd on a 106 which was a ton faster with the 2.26" csa @ the pinch (Dart 215)

 

[cv67]

Flow numbers are very close to the ones butch posted. Low/mids a touch higher peak is very close, Chris.

Know the head is a touch big but simply dont have the coin for the 210 CC I want. In a perfect world Id have those heads and stroke it but that cant happen right now..to just have the heads Id have to leave it a 350 which wouldnt be a horrible thing

Figured using these heads/stroke might be better than 350/CC heads

To cam it as most street cars, 6500 rpm comes to early the way its geared a good 7-7200 or so is a little better.

Concerned about running a stroker there repeatedly.

Right now turning up the 350 some is more in line with finances just searching for a way to do it bigger as its out of the car. Try anyway!

I still dont know where the current cam is degreed in will know next day or so; it could be just fine and installed way off who knows.

Should it be off quite a bit, may just be workable hate to toss a brand new cam but right now whichever makes this car a banshee in the powerband I want it doesnt matter. Not building this to be practical I wanna haul azz.
Whatever works.

 

[cstraub]

Flow numbers are very close to the ones butch posted. Low/mids a touch higher peak is very close, Chris.

Know the head is a touch big but simply dont have the coin for the 210 CC I want. In a perfect world Id have those heads and stroke it but that cant happen right now..to just have the heads Id have to leave it a 350 which wouldnt be a horrible thing

Figured using these heads/stroke might be better than 350/CC heads

To cam it as most street cars, 6500 rpm comes to early the way its geared a good 7-7200 or so is a little better.

Concerned about running a stroker there repeatedly.

Right now turning up the 350 some is more in line with finances just searching for a way to do it bigger as its out of the car. Try anyway!

I still dont know where the current cam is degreed in will know next day or so; it could be just fine and installed way off who knows.

Should it be off quite a bit, may just be workable hate to toss a brand new cam but right now whichever makes this car a banshee in the powerband I want it doesnt matter. Not building this to be practical I wanna haul azz.
Whatever works.

Does a 427 BBC like rpm? The stroke on it is 3.766". A 383 will go that rpm all day long. For 3.75 stroke you are safe to 8400 rpm. After that you exceed Mile per Minute and at this point you can run into some trouble with out frequent freshen ups and VERY good parts.

 

[onebad82z]

Does a 427 BBC like rpm? The stroke on it is 3.766". A 383 will go that rpm all day long. For 3.75 stroke you are safe to 8400 rpm. After that you exceed Mile per Minute and at this point you can run into some trouble with out frequent freshen ups and VERY good parts.

So what kinda rpm can his 350 run "safe" with 3.48 stroke?

 

[cstraub]

So what kinda rpm can his 350 run "safe" with 3.48 stroke?

Right at 9000.