Blown Sbc Help

I am building a Blown sbc it's a (old chevy 283ci block)punched out to 300ci sbc with a 1471 blower on Alky, some people tell me to fill the block all the way some say half. I think filling it all the way is the way to go?
I'm looking to run 40-50 pounds of boost, Timing I am thinking around 26 degree I see some people run 32 degree. this is the first time I am building a blown motor, am going from Twin Turbo to 1471 blower. Motor has 12.00:1 compression, splayed main caps, everything is ARP studded. If anyone can give me a base line tune for the injector that would be Awesome I am running nozzles to hat and port. I am thinking of using a 2 step for staging, I run a MSD 10 Plus. for Burnout, I see some people have a air solenoid on the troddle cable and some people don't, what works best with less of a head ace? looking to run 6's on an OUTLAW 2800 lbs. car. I was going to run a MSD Pro MAG 44 but think it's to much for a little 300ci sbc, The MSD 10 plus should work fine? Any help would be greatly appreciated.
Thanks again
Jimm Paine

 

blown

never mind, I was going to say something but I can't sorry

good luck

 

IT WON'T WORK.... before moving up to ta/d I ran a small block and putting it on kill would go in the 6's with no problem but............it was trashing parts
and I know the next thing to come out of peoples mouths is Rick Santos did it
and it is very true but not with GM parts. The first thing that will happen it will pulled head studs, then the 3 and 5 and 4 and 6 will be your next problems
a small block will not take that kind of boost from a blower. and to get that kind of boost it better be a PSI..The last thing I will say is all the money you will spend to keep this thing together you could have bought several hemi's.and this is talking from a person that has done it..Dave Lowe

 

If you have some spare $ get your self one of these blocks http://www.cnblocks.com/xboltsbc.htm
These are the heads I would also buy http://www.alanjohnson.com/ajpframe.htm
I think the biggest problem you will have is getting the valvetrain to last.

 

Rickey please speak your mind all I can get out of what you say is something I can only learn from. I am just starting out, So I know I will run into a lot of trouble, But the more everyone speaks there mind the more I learn and less I break. I was going to build 2-3 spare 400ci sbc motors because they don't cause as much as it will cost to build one Rocket block with 12 degree aj heads, how much would a filled and splayed 400ci with 23 degree heads hold I really don't know. I thank you all for your input good or bad I will not get offended by anything you say, please speak your mind. How much Boost can a Filled ARP studded, Spayed caps 300ci-400ci sbc hold? How many pounds of boost would it take to get a 300ci-400ci sbc to run hi 6's on a 2800 lbs Outlaw car? I don't go with a BBC because then I would have to weigh 3200 lbs. My car is way to light to add all that weight.
thanks again
Jimm

 

blown

GM parts want work

you will have to get a Brodix block, don't fill it at all

get heads and block o-ringed

compression is to high cut it below 11:1, u can use .093 head gaskets

get a set of head bolts from Brodix for that boost, around $1500 a set

-12 heads

change rod bearings every week

loose 400 lbs

that's all there is to it

 

If your talking about using GM 400 stock blocks.....you won't get past the burn out and that is generous.
What your wanting to do is not reasonable. You'll spend a ton of money and not be happy with the results.........rethink your plans and goals.

That's my suggestion...........blessings.......Ron Clevenger.

 

I didn't wanna sound like a jerk...that is the last thing i would ever want you to think. I am trying to help you, I have done this small block chevy thing first the old iron stuff and like the guy said it won't go past the burn out VERY TRUE so then came all the brodix stuff the best money could buy block heads the best head studs ect. and it still was a major money pittttt. i would love to send you all my bills and let you take a look it would change your mind or then you might think about!!!!!!!!!!!!! a HEMI

 

Sorry Jimm,
But i think this post is more like a joke.
Claude

 

anyone know of anyone selling a hemi, intake to pan for a reasonable price?
If it's around what I would spend to building 3-4 sbc that will only blow up and make my life a living hell, then I'm open for something that will work or I can also look to see what a Brodix block would cost. I thank you all very much for all this input. I'm just glad I didn't go spending on sbc parts and came here first to see what everyone would say. I do have the 300ci sbc that I was going to play with but hey let me know what's out there
thanks again
Jim

 

hey Claude why would you say that?

Sorry Jimm,
But i think this post is more like a joke.
Claude
__________________
'34 Ford Coupe
www.wildrideracing.com

 

Just because i see these numbers on the same post : old 283 , 14-71 , 12 to 1 , 40-50 boost , 32 timing , 2800 car .
something dont fit !
Claude

 

Am I the first trying to run a chevy block with a 1471, I was thinking of 26 degree timing, how much boost do you think a 12 to 1 filled chevy block with splayed caps can hold? 20-30 pounds of boost?
thanks for your post
Jim

 

Sbc

I run a SBC in T/D IHRA and am #17 qualifier this weekend at the world finals, I run a filled (to the top)bowtie block with splayed billet caps, 11.7 to 1,steel rods (oliver), 23* heads (867over the counter ported myself) 8-71 standard helix blower 8% over just hat nozzles, 28* timing goes low to mid 6.70's with no problems...had head gasket problems between the center cylinders but appears that I have found a cure for that, only been working with the blower for 1.5 years. I run water through the heads, I am sneaking up on this deal a little at a time, I hope to run 6.60's at the snowbirds. Keep the timing low and spend a lot of attention to the plugs and what they are telling you. Don't be afraid to be different just be cautious and smart. If you want any advice private message me us SBC guys need to stick together!

 

http://www.toddtutterowracing.com/cars/ , If you have to run a small block Try this site . Outlaw 1/8th mile racer only . He runs an AJ billet head small block with a CN billet block . AJ makes a cast magnesium manifold for the heads also and his own custom valvetrain . At 2475 lbs he has run 3.95 at 188 mph to the 1/8th in his door car . I think someone in Canada builds the engines , not Atchison though . I am sure the cost is similiar to building a brand new billet hemi . Keep us informed on your results .

 

how much boost can a filled chevy small block with splayed caps ARP studed block take, 20-30 pounds of boost?