Logo: JBA Speed Shop

C8DENCE Engine Build Data – JBA Speed Shop AntiCrate™

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JBA Speed Shop AntiCrate™ – C8DENCE Engine Build by Ethan Moradzadeh

C8DENCE Critical Engine Dimensions – 385/460/509 BBF

# Dimensions Calculations
Average Bore Size Diameter 4.420 Actual Engine Displacement 509 CI
Crankshaft Stroke 4.150 Swept Volume 1,043.03
Number of Cylinders 8 Compressed Volume (CCs) 112.06
Center to Center Rod Length 6.800 Uncompressed Volume (CCs) 1,155.10
Engine Block Height 10.322 Head Gasket Volume (CCs) 10.30
Deck Height 0.007 Deck Height Volume (CCs) 1.80
Piston Dome/Dish Volume (CCs) -30 Compression Height 1.44
Cylinder Head Chamber Volume (CCs) 70 Compression Ratio 10.3:1
Head Gasket Bore Size 4.460 Rod/Stroke Ratio 1.64
Head Gasket Thickness 0.041 Engine Power Ratio

C8DENCE Engine Build Data – 385/460/509 BBF

Engine Block Data

  • Block Manufacturer/Average Bore Size: Ford/4.420
  • Piston to Wall Clearance
    • 1: .0035
    • 2: .0035
    • 3: .0035
    • 4: .0035
    • 5: .0035
    • 6: .0035
    • 7: .0035
    • 8: .0035

Crankshaft Data

  • Crankshaft Manufacturer/Type: SCAT Enterprises/Cast Steel
  • Crankshaft Stroke: 4.150
  • Main Bearing Manufacturer/Type: King Engine Bearings/Standard
  • Thrust Clearance: 0.003
  • Main Bearing Clearance:
    • 1: .0022
    • 2: .0022
    • 3: .0020
    • 4: .0022
    • 5: .0022

Rod Data

  • Rod Manufacturer/Type: SCAT Enterprises/Forged
  • Rod Length: 6.800
  • Rod Bearing Manufacturer/Type: King Engine Bearings/Standard
  • Paired Rod Side Clearance:
    • 1/5: .018
    • 2/6: .018
    • 3/7: .018
    • 4/8: .018
  • Rod Bearing Clearance:
    • 1: .0025
    • 2: .0021
    • 3: .0023
    • 4: .0023
    • 5: .0023
    • 6: .0022
    • 7: .0023
    • 8: .0022

Piston and Ring Data

  • Piston Manufacturer/Type: AutoTec/4032
  • Ring Manufacturer/Type: Hastings/Iron
  • Ring Width: 1.5mm 1.5mm 3.0mm
  • Top Ring Gap: 0.024
  • Second Ring Gap: 0.020
  • Oil Ring Data: 0.035
  • Piston to Deck Clearance: 0.012

Camshaft Data

  • Cam Manufacturer/Type: Schneider Racing Cams/Hydraulic Roller
  • Lash: 3/4 Turn After 0 Lash
  • Lobe Lift Intake: 0.360
  • Lobe Lift Exhaust: 0.364
  • Lobe Separation Angle (LSA): 113°
  • Intake Centerline: 111°
  • Camshaft Duration @ .050 Lifter Intake: 232°
    • Opens: 12 BTDC
    • Closes: 40 ABDC
  • Camshaft Duration @ .050 Lifter Exhaust: 241°
    • Opens: 61 BBDC
    • Closes: 0 ATDC
  • Gross Lift with 1.73 Ratio Rocker Intake: 0.622
  • Gross Lift with 1.73 Ratio Rocker Exhaust: 0.630
  • Piston to Valve Clearance Intake:
  • Piston to Valve Clearance Exhaust:

Cylinder Head Data

  • Type: Kaase SR-71
  • Valve Diameter Intake: 2.375"
  • Valve Diameter Exhaust: 1.760"
  • Combustion Chamber CCs: 70
  • Head Gasket Thickness: 0.041
  • Compression Ratio: 10.3:1
  • Spring Pressure Closed: 125 Pounds
  • Spring Pressure Open: 315 Pounds
  • Intake Runner Volume:
  • Exhaust Runner Volume:
  • Intake Flow @ 28" H2O:
  • Exhaust Flow @ 28" H2O:

Notes

  • Valvoline 10W40 (Winter), 20W50 (Summer), Wix Filter
  • Do NOT Use Synthetic Oil
  • Change Every 3,000 Miles or Each Season (Low Mileage)

Engine Dyno – 571 HP / 594 FT LB

Dyno Date: 2024-05-15 17:34
Engine: Ford 385/460/509 BBF, Timing :32, Jets: 73p:78s, Carb: 850 Holley, Heads: Kaase
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# Speed
rpm		 SG FCALC BSFC1
lb/hphr		 BSFC2
lb/hphr		 BSFC
lb/hphr		 C_TQ
lbft		 CPower
C_HP
3000 .726 .716 .431 .004 .427 566.1 323.4
3100 .726 .716 .441 .004 .437 572.9 338.1
3200 .726 .716 .429 .004 .425 576.3 351.1
3300 .726 .716 .426 .004 .422 581.5 365.4
*3400 .726 .716 .425 .004 .421 587.5 380.3
*3500 .726 .716 .425 .004 .421 589.1 392.6
3600 .726 .716 .428 .004 .424 588.2 403.2
3700 .726 .716 .425 .004 .421 588.4 414.5
3800 .726 .716 .421 .004 .417 590.1 426.9
3900 .726 .716 .419 .003 .416 589.5 437.8
4000 .726 .716 .419 .003 .416 588.4 448.1
4100 .726 .716 .418 .003 .415 589.2 459.9
4200 .726 .716 .415 .003 .413 590.9 472.5
4300 .726 .716 .417 .003 .414 592.0 484.7
4400 .726 .716 .418 .003 .415 594.1 497.7
4500 .726 .716 .422 .003 .420 592.8 507.9
4600 .726 .716 .423 .003 .420 592.2 518.7
4700 .726 .716 .425 .003 .423 590.7 528.6
4800 .726 .716 .424 .003 .422 586.3 535.5
4900 .726 .716 .430 .003 .427 582.8 543.8
5000 .726 .716 .432 .003 .429 578.1 550.3
5100 .726 .716 .435 .003 .432 572.1 555.5
5200 .726 .716 .437 .003 .434 567.0 561.4
5300 .726 .716 .441 .003 .439 562.6 567.7
5400 .726 .716 .440 .003 .438 555.4 571.0
5500 .726 .716 .443 .003 .441 544.2 569.9
Average Data in * Band
3450 .73 .72 .430 0 .420 588.34 386.49

# Description
Disassemble, Autopsy, Document Long Block
Full Long Block Scrape and Hot Tank (Resto En)
Clean Iron Cylinder Head (Set)
Hone Block Only (with Torque Plate)
Drill and Tap Galleys
Disassemble Cylinder Heads (Set)
Assemble Cylinder Heads (Set)
Inspect, Measure, and Document Cylinder Heads
Final Wash and Paint (PPG Mandarin Copper)
Install Cam Bearings
Install Freeze and Oil Galley Plugs
Check Main Bearing Clearances
Check All Rod Bearing Clearances
Degree Camshaft and Install
Blueprint Oil Pump and Pressure Spring
Assemble and Blueprint Complete Street Engine
Install Pistons on Rod Floating Pin (8)
Balance Performance Crank Assembly with Manual

# Description
Dura-Bond Standard 385 Series Cam Bearings
Kaase SR-71 Cylinder Heads
Crower Enduro Stainless Steel Rocker Arms Ford 460
Fel-Pro Performance R.A.C.E. Gasket Set
Fel-Pro Performance Rear Main Bearing Seals Set
Fel-Pro Performance Oil Pan Gasket Set
Fel-Pro Performance CorkLam Valve Cover Gasket Set
Fel-Pro Performance Intake Manifold Gasket Set
Cometic MLS Head Gasket 4.500 Bore .040 - BBF 460
Cloyes Heavy-Duty Timing Set BBF
Milodon 460 Ford Valve Cover Stud Kit
ARP Chromoly Intake Manifold Bolt Kit BB Ford V8 12-Point
Melling Oil Pump
ARP Standard Carburetor Stud Kit 1.700" OAL
Right Stuff 10 Ounce Cartridge
BBF Hydraulic Roller Camshaft Custom Grind
BBF Ford Hi-Endurance Retrofit Hydraulic Roller
China Wall Spacer
12 Point Head Stud Kit for SR-71 Heads
SCAT Custom 509 CID BBF Rotating Assembly with RaceTec 460 Dish Pistons, .060, 21cc and RaceTec 4.420" Bore Ring Set
Copper Spray Paint
Oil Pump Drive Shaft
Crankshaft Damper Spacers, Steel, Black Anodized
Performance Intake Manifold Gasket Set
Pushrod
Engine Pro 4130 Pushrods 3/8" x 8.700"
Crankshaft Balancer Bolt
Water Pump for Ford 429/460 in Satin Finish
Distributor Gear, Everwear, Ford 460
BBF 6.7 Harmonic Damper – Non-SFI
3/8-16 x 2.250 Hex Black Oxide Bolts
Rubber Hose
Install AN Fitting Onto Line
120 Degree AN/JIC Hose End Push Lock
Straight Male Adapter to (3/8") NPT
90 Degree AN/JIC Hose End Push Lock