Thread: Diy
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Old 11-21-2011, 01:54 AM
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Lightingrod Lightingrod is offline
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Join Date: Jun 2005
Location: Belleville, 15 miles East of St Louis MO, IL
Cobra Make, Engine: Classic 427, I purchased it May 2005, the kit was bought in 1991. I'm not sure when it was completed! Installed GMPP Connect & Cruise 376/525 with T-56 S/M 3.55 gears about 2 years ago! 1/4 miles is with old setup!
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I'm hoping my output will be close to the engine built by Ceralli Competition engines below!

Dyno Test Criteria, Ceralli Competition Engines

550 HP 406 Street Engine
Engine: 406ci
Heads: AFR 210cc Race Ready
Compression: 10.3
Carburetor: 750 Carb
Ignition: MSD HEI Billet Distributor 36° Timing
Cam: Lunati Hyd. Roller Cams 232°/242°
0560-.570 lift W/ 1.6 Rockers
Exhaust: 1 3/4" Headers
Fuel: 93 Octane Pump Gas
RPM TORQUE H.P.
2500 463 220
3000 468 267
3500 457 304
4000 465 354
4500 534 457
5000 540 514
5500 510 534
6000 483 551

My engine:
Engine: 388ci
Heads: AFR 210cc Race Ready
Compression: 10.0
Carburetor: 750/800 CFM
Ignition: MSD HEI Billet Distributor 36° Timing
Cam: Comp Solid Roller Cam 236°/236° (with rev kit)
0551-.551 lift W/ 1.6 Rockers
Exhaust: 1 3/4", Step 1 7/8” Headers
Fuel: 93 Octane Pump Gas

4 Bolt block, decked/squared, main studs. Forged Eagle crank and H-beam 5.7” rods, KB ICON forged pistons, internally balanced! I would have liked 6” rods but I had the 5.7” on hand. Though my Comp Solid Roller Cam is a little small than the Lunati Hyd. Roller, I think it will perform as good as or maybe even a little better due to the more aggressive ramps and better valve control, even without the rev kit! I’m also hoping for even better low-end torque!

With my luck the day we drop it in we will get 6" of snow that will stay on the ground till spring!


Al
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