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1981zapper 12-03-2012 08:42 PM

SBC 355 Build
 
Im looking at building a 355 for my 1981 Camaro Z28, Here is what i have picked out, some of the parts i already have;

-Edelbrock Performer RPM Cylinder Heads 64CC #608919
-Howards Cams Retro-Fit Hydraulic Roller Camshaft and Lifter Kit #CL110245-12 (Lift; .500 int./.510 exh. Duration @ .50 225 int./231 exh, LS 112, RPMRange 1,800-5,400
-Scorpion 1.5 Race Series Rocker Arms #SCP1000BL
-Professional Products PowerForce Plus Harmonic Dampers SFI # 90000
-Lunati Street Race Rods 4340 I-Beam
-Ross Racing Forged Flat Top Pistons #90456
-GM Cast Crank

I did a Compression Calculator and my Compression is coming out at just under 10:5:1 with a 0 deck, do you guys think with this cam & compression Im able to run her on 91 Octane?

And any inputs on what kind of HP / TQ this motor can be making?


http://i671.photobucket.com/albums/v...r/355build.jpg

vinniekq2 12-03-2012 10:22 PM

I would think 360 h p and similar torque on the conservative side. 91 octane will work ok I think.you did not mention carb/headers

1981zapper 12-03-2012 11:15 PM

Quote:

Originally Posted by vinniekq2 (Post 1618810)
I would think 360 h p and similar torque on the conservative side. 91 octane will work ok I think.you did not mention carb/headers

is that at the rear Tires? and yes i will be using headers and Qudrajet

vinniekq2 12-03-2012 11:21 PM

fly wheel,,,,if you make 360 hp at the wheels,your car would be a low 12 second car

oldbogie 12-04-2012 10:20 AM

Quote:

Originally Posted by 1981zapper (Post 1618779)
I’m looking at building a 355 for my 1981 Camaro Z28, Here is what i have picked out, some of the parts i already have;

-Edelbrock Performer RPM Cylinder Heads 64CC #608919
-Howards Cams Retro-Fit Hydraulic Roller Camshaft and Lifter Kit #CL110245-12 (Lift; .500 int./.510 exh. Duration @ .50 225 int./231 exh, LS 112, RPMRange 1,800-5,400
-Scorpion 1.5 Race Series Rocker Arms #SCP1000BL
-Professional Products PowerForce Plus Harmonic Dampers SFI # 90000
-Lunati Street Race Rods 4340 I-Beam
-Ross Racing Forged Flat Top Pistons #90456
-GM Cast Crank

I did a Compression Calculator and my Compression is coming out at just under 10:5:1 with a 0 deck, do you guy’s think with this cam & compression I’m able to run her on 91 Octane?

And any inputs on what kind of HP / TQ this motor can be making?


http://i671.photobucket.com/albums/v...r/355build.jpg

This is a lot of compression, what is the intended use of this car. What is the gearing and tire size and the transmission.

With a Holley 750 cfm 4 bbl, on a Performer RPM intake, with 1-3/4 tube full length headers, a really good CD ignition this could pull about 400 horses on an engine dyno. But this power level takes really good parts matching and tuning, even slight deviations will drop the crankshaft power 30-40 horses very easily.

Bogie


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