HP& Torque:491 HP/ 509 FT. LBS
Cylinder Heads:BluePrint Engines Aluminum Cylinder Heads
Compression Ratio:10.4:1
Camshaft:Hydraulic Roller Cam - .544 Intake/ .555 Exhaust Lift and 230 Intake/ 236 Exhaust Duration @ .050 - 110° LSA
Pistons:Forged
Crankshaft:Steel Crank - 3.875" Stroke and 6.000" Rods
Description:
- HP& Torque: 491 HP/ 509 FT LBS
- Compression Ratio: 10.4:1
- Aluminum Heads
- Hydraulic Roller Cam
- Forged Crank
- Forged Pistons
Block:
- NEW BluePrint Cast Iron Block
- Manufactured and Machined in the USA!
- Align honed main bearing bore
- Cylinders honed on computer-controlled machine to within .0002 straightness and roundness
- Cylinders are sonic tested for thickness
- 4-Bolt Main
- 4.000" Bore
- 1-Piece Rear Main Seal
- Mech fuel pump provision: Yes
- Passenger Side Dipstick
- Drilled and tapped for clutch linkage
RotatingAssembly:
- New BluePrint Forged Crankshaft
- 3.875 " Stroke
- Forged I-beam 6.000" connecting rods
- Forged Pistons
- Internal Front/ External Rear
Cylinder Heads:
- BluePrint Aluminum Cylinder Heads - HP8103
- 64cc chamber
- 2.08" intake/1.60" exhaust valves
- 220cc intake/67cc exhaust runners
Cam Specs:
- Cam Type: Roller
- .544 Intake .555Exhaust
- 230 Intake/ 236 Exhaust duration
- @ .050, 110° lobe separation angle
IgnitionTiming:
- 34 degrees total at 3500 RPM
Alsoincludes:
- New valve covers, oil pan and timing cover
- Aluminum Intake Manifold
- HEI distributor
850 cfm Carburetor
Notes:
- Not for use in pollution-controlled vehicles.
- TheAftermarket intake manifold installed on this engine may not be compatible with OEM accessory brackets that use intake mounted bosses.
- This engine features a true 4-inch bore, which mathematically yields 389CID with a 3.875-inch stroke.
- 93 octane or higher is recommended for this engine.
- The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.