![]() |
Need suggestions for my 383 build
Here is what I am planning so far. My main concern at this point is the cam. Any suggestions? This is for a heavy street/light strip car. Likely will be a '79 Olds Cutlass or late '70's Camaro.
CYLINDERS 8 BORE 4.030 in. DISPLACEMENT 383 cid STROKE 3.750 in. PISTON HEIGHT 9.005 in. ROD 6.000 in. DECK 9.013 in. COMPRESSION HEIGHT 1.130 in. COMPRESSION RATIO 10.6 :1 HEAD VOLUME (cc) 64.000 cc DYNAMIC COMPRESSION 8.3:1 PISTON HEAD VOLUME (cc) 7.000 cc HEAD GASKET BORE 4.100 in. GASKET THICKNESS (COMP.) 0.040 in. DECK CLEARANCE 0.008 in. CAM- EDELBROCK 2201 ROLLIN' THUNDER HYD ROLLER INTAKE DURATION 234 ⁰ @ 0.050" INT ROCKER ARM RATIO 1.5 :1 EXHAUST DURATION 238 ⁰ @ 0.050" EXH ROCKER ARM RATIO 1.5 :1 INTAKE CENTER 107 ⁰ LOBE SEPERATION 112 ⁰ INTAKE MAX LIFT 0.539 in. INTAKE LOBE HEIGHT 0.359 in. EXHAUST MAX LIFT 0.548 in. EXHAUST LOBE HEIGHT 0.365 in. INTAKE OPEN @.050 10 ⁰BTDC IDLE VACUUM @ 1000 RPM 12 in. INTAKE CLOSE @.050 44 ⁰ABDC EXHAUST OPEN @.050 56 ⁰BBDC EXHAUST CLOSE @.050 2 ⁰ATDC HEADS- EDELBROCK 60899 PERFORMER RPM INTAKE VALVE 2.020 in. EXHAUST VALVE 1.600 in. INTAKE RUNNER 185.000 cc EXHAUST RUNNER 65.000 cc MAX LIFT 0.575 in. "CARBURETOR-750 CFM Four Barrel Street Carburetor HOLLEY 0-80508S PART #: 0-80508S" CHOKE ELEC. SENCONDARY VACUUM |
You have nice set up but my main concern on this would be the heads. I think That with anything above 355 CI, and with the parts and compression you have, I would have gone to a bigger runner head. Something like a 200cc head, or at least 190cc. With that smaller runner this engine will be a torque motor for sure. But at the track will struggle at the top end. Big cubic inch small block need more air in to breathe and perform well.
Also, try a Holley 750, with vacuum secondaries. |
Maybe the Edelbrock ETEC 200cc intake port volume heads?
peace Hog |
| All times are GMT -6. The time now is 06:07 AM. |
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.